thanks for watching tech quickie click the subscribe button and enable notifications with the bell icon so you won't miss any future videos when it comes to processor speed whether it's a CPU or a GPU you probably think in megahertz or gigahertz at first but these numbers aren't actually very useful if you're comparing processors across different models so maybe that's why graphics card makers in particular have started leaning on a specification called flops to describe their latest and greatest hardware but what does that mean I mean is that a measure of how many disappointing $60 games your card will run before it dies no flops is a performance metric that stands for floating-point operations per second now this might sound like the time it takes for your magic 8-ball to give you an answer but it's really a measure of how quickly your processor can do math that involves a mix of large small and fractional numbers and it matters because computers only have a finite amount of space to store the numbers that they work with for a single number this is typically either 32 or 64 bits depending on what processor and program you're using so in order to express a range of very large and very small numbers some of these bits are allocated destroying the digits of the number itself while others are reserved to specify where the decimal point should be a little bit like scientific notation this makes it easy to express huge or tiny numbers in a limited number of bits but keep in mind that floating-point operations are less straightforward for your processor to carry out than ones that only involve integers due to the computer needing to deal with ever-changing exponents converting them to and from decimal numbers and rounding them off now if you watched our episode explaining the difference between CPUs and GPUs which if you haven't you can check out here you might already understand why it's more common to see a flops measurement on a graphics card spec page versus one for a CPU much of the math your GPU needs to do in order to render the images that you see on your screen uses vectors to determine where each line and shape should go and crunching these numbers involves using many different floating-point numbers whose exponent values can vary quite a bit now supercomputers and more powerful workstations used for scientific research and weather modeling are also often described in terms of flops as they also heavily rely on using floating-point numbers but what exactly does any of this mean for you out there yes you Tom Smith who's just trying to score a good deal on a video card should you go for whatever has the highest flops that you can still afford the answer is probably no even though more flops does indicate more raw computational power it means it's better in the same way that a CPU with more megahertz or a digital camera with more megapixels is better many other things will play a huge role in how good of an experience you'll have with your graphics card including memory capacity and bandwidth the specific architecture that your GPU uses and even how nicely the drivers play with the specific games in your library so the takeaway here is that unless you're an AI or Big Data researcher there's no need to be all starry-eyed at how the new Titan V has a hundred and ten teraflops of pure power but at least you know that the specification on the back of the box doesn't refer to the sound that your wallet makes as it flops down on the checkout counter speaking of the checkout counter go ahead over to tunnel there we've got it linked in the video description and check out the simple VPN that makes it easy to browse privately and enjoy a more open Internet with tunnel bear turned on your Wi-Fi connection or wired connection is secured and your online activity is kept private from your internet provider advertisers or anyone looking to track you or profit from your data tunnel bear has a top rated privacy policy and not log your activity so try it for free with no credit card required at Tunnel Bear comm forward slash Linus we've got that linked below so thanks for watching guys like dislike check out other channels leave a comment with fee APIs suggestion for a future video and don't forget to


what's up guys welcome to today's video we are heading to osw we got a private little drift day we're taking the big rig we got some cool stuff in store in there but I am thinking about doing a couple laps in the Supra so stay tuned let's see if someone convinced me to take this thing out because it would be pretty crazy on three oh five are triple Eight's but I think I'm willing to give it a shot so we're gonna hop in the children other guys are gonna drive over the Supra and then we're gonna have a bunch of stuff to play with it's gonna be a good day now before we get to the track I wanted to give a quick shout out to movement now they've got you covered this holiday season which is already here with hundreds of awesome watches blue light glasses sunglasses and tons of different jewelry styles to choose from using a stocking stuffers it'll make a great gift or just look better when you're going to your holiday outing but they've made it super easy for you with their specially curated gift boxes isn't her gift guides and super quick shipping right to your door in time for the holidays their watches are designed in-house they're super sleek and they won't break the bank starting at just ninety five dollars you can get yourself a very clean and sleek well-put-together product for movement believe it or not right now they've sold almost 2 million watches in over 160 different countries so you guys know they give me a special deal to give to you guys which is perfect for this holiday season you can get 50% off with free shipping just by going to movement calm /lc if you're not getting your holiday bonus till next week but you want to get the watch now they do offer buy now pay later with clarinha payments where you can actually make for easy payments with no fees so that's pretty cool option for you guys once again just movement calm for /lz check out what they've got to join the movement I won't even master thank you them again for sponsoring this video and I guess all you're doing will be at the track welcome to today's video guys we are rolling up on Orlando speed world we are doing a private day like last time we're all the YouTube people in town we're all going to osw and do it some poof ding obviously we didn't tell you guys about it because it used to be a private day for like liability reasons and stuff and what it cost a fortune to do a public event here so we're doing a low-key just you know a little some videos get to drive our cars and have some fun whether it's in town together so pout in the hole trust you see over but I'm gonna be driving a couple other cars today - so TJ's car didn't make it here today nope it's broken and so we slept it well I saw you rolled over Cletus are you gonna be drifting this thing yeah he's trying to get me in the crown Bay press that won't touch it no now I'm tired today I think we're all uh private in today are we it's pretty excited for hi how are you do that you look great this thing smells good you got here forever linear it's got great additive in the 90 huh well would you look what was inside of the rig [Music] I'm a happy boy I still remember when I drove that Karnas highlight or yellow and still in HR so it's cool seeing it now and one thing that TJ's been bugging me about he's not had nothing more than me to run that 15 with them so even though the head gaskets kind of little sketchy right now we did bring it we're gonna try to do some laps of TJ [Music] all right so grants in the car with me and we're gonna give the new chaser set up to try Ivan drifted instance the new trans different diff set up different tire set up different wheel set up I was you changed a bunch mats got power steering where before it was like faulting out oh yeah there's like a solenoid in these so if you don't have the wired up what I think it goes to false if you don't have the solenoid in I think it might be binding in the front on the wheel maybe try to throw a little shallower see if it won't lock up like that [Music] you know anything it is well I think the front of Lyman needs a little more till out okay is it not self-steering that mantra now hi and unbelievable unbelievable unbelievable most like what is going on here my four door Japanese today good as soon as you entered with him I'd like grab the seat I was like oh we're going for it oh that was awesome generally I try to follow those guys and they just leave me they must be running like I wanna see if it's Robin so yeah we probably should [Applause] [Applause] [Applause] [Music] [Applause] [Music] hey how much power does this thing make diners out there so technically speaking other than Leroy this will be the highest first shark I've ever drifted let's do it and it doesn't look like it's got that much grip either [Music] [Music] cradle all that like it you will work you just got it yeah okay [Music] well I lost the gas pedal what where to go the gas pedal literally fell off dude I knew that was just in my head I kept moving faster there we go [Music] that was fun is that alright that we spent a little coolant oh good okay thank you let me drive this thing man better really do a better job I was still pretty good all right let's see how this thing handles a real drift rack with Archer blades in the back I'm just bolt-ons Wow forgot how much this thing is fast yeah hopefully I don't crash it I don't know if I just heat up the tires or yeah never hurts shellfish you doesn't shift for us that's my biggest concern sometimes all right let's see [Music] oh yeah boy accidentally shifted [Music] [Music] [Applause] you know it kind of likes third gear oh I almost connected to the hard part got that bottom end yeah so she likes third I might try that again real quick we didn't died in verse nine crazy how much grip it has [Music] [Music] let's go oh yeah yeah no I saw dude this thing's good huh I wonder how good it launches with these tires on it I don't to piss that guy off I'm pumped on that dude with 305 our triple Eight's that thing is the fastest car I've ever driven dude I was in third - yeah so fast yeah see me you see me ripping the Supra we've driven a bunch today but we haven't driven together yet never have will they make it happen so DJ's all at a tire but I'm gonna give them some of my tires so I don't know if it'll be more grip you're less creepy than what you're used to no idea I've got a brand new set of these that we can put on your car so you're gonna have some special powers with those wheels want me to be in the firing and we do mean the front first you know I think that's what we should do because my car's I kind of absurdly fast I'm sure I mean we can try both my the problem is like this car just billows smoke and if you get lost in the smoke it gets icy yeah so anyway we're gonna try to get a photo I have a feeling that like people might not people brother won't like that whoa TJ oh doctor Oh baby Oh doctor different team flex out here oh look at that curb rash dude what'd you do to my wheels I dropped it I didn't think he'd see that how did you do that without even driving on him brother let's talk about us out okay I'm gonna go come in on me I'm gonna have to go over here I want a spicy photo I'm gonna try not to get scared I'm a little nervous I don't I don't know where the spice is gonna be but I get some spice I feel like the best corner for me to stack up with you is gonna be that yeah that so I'm gonna come to I'm gonna be this a super like super fluid I was gonna hold the same angle Yomi be correct if I want yellow poster just don't stop yeah I was singing though something bad all right I appreciate you [Music] [Music] [Music] [Music] [Music] [Applause] [Music] [Applause] [Music] [Applause] [Music] it was an awesome day me and TJ got our photo that we wanted I got to drive a lot of people Schulman I got a daughter Solman and I got it on GoPro yeah I didn't hit dude that I liked so gently apply pressure I know but I was scared because I did it right when you were like almost on the wall so if you went too deep that would've been bad was it like like I have never liked cars like I'm like oh my god oh my god I sucked up myself to mess up they're like oh it's funny because I wasn't following that close but I would just kind of transitioned early in the last corner just drive into you yeah no dude I was like I was debating whether or not to do it but I had the perfect opportunity to like gently gently kiss it you probably buff that out if you want now hell yeah that was fun it was a great day we'll probably resume this video back in the house chillin I got to go run and drop my friend off at the airport so I'm gonna dip out of here probably gonna go get some food but I was blast got to drive somebody drew this Sutra about every we got to take laps in the cars it's blessing [Music] learn to love me back [Music] when you say


making a cocktail for yourself once in a while is certainly an easy task but as soon as you got guests coming over and everyone wants the same cocktail all that measuring for sea breeze cocktail which consists of two parts vodka for pots cranberry juice and two parts grapefruit juice can be quite annoying that is why I created the screwed but functional cocktail machine which automatically pours all the liquids in a glass after you entered the amount of each of them in milliliters now my machine is programmed to pump out Seabreeze cocktails one after the other but by simply changing the bottles and adjusting a bit of Arduino codes you can pretty much create any cocktail you like with this machine so without wasting any more time let me show you how it works and how you can make your own let's get started this video is sponsored by Chelsea PCB upload your Gerber files today to get high-quality PCBs for ridiculously low prices currently even without shipping costs and make your projects look more professional if I open up the side of my cocktail machine we can pretty much see all the electronic components it consists of we got a DC jack fully power inputs an LCD R to present all the importance millilitre information a rotary encoder with push button to utter those quantities and start the mixing process an arduino nano as the brains of the organization a load cell which acts as a weight measuring system three peristaltic pumps to move the liquids and to l-29 eight and doufu bridge drivers to control the motors and while i talked about pretty much all of those components in previous videos of mine i never got the chance to showcase peristaltic pumps now i got mine from ebay and if we remove the four mounting screws that hold the plastic construction to the motor and thus remove it we can see that we are basically dealing Buber 12-volt DC motor the plastic structure on top of its simply consists of rotor with three rollers which after inserting a flexible silicon tube retouching the construction to the motor shaft and powering the motor compresses the silicon tube this deformation of the tube creates pressure which forces liquid inside the tube to move forwards and of course if we would change the polarity of the DC motor the liquids would flow backwards another important aspects for our cocktail machine is that this kind of pump delivers a precise amount of milliliters of liquids per seconds but we will try the doubts in detail later for now let's get rid of the silicon tube from the cellar and replace it with a food-safe silicon chip in stats I got mine with a diameter of 10 millimeters which is certainly the maximum for this kind of pump but anyway after closing up the plastic construction once again it was time to connect the DC motor to the out one and our two terminal of the l-29 eight breakout board and after connecting the five terminal 2 5 volts the ground terminal to ground ante 12 volt terminal 2 15 volts since there's quite a big voltage drop across the IC we can connect either in 1 or in 2 to 5 volts depending on which direction the motor should rotate and once I was certain that he main electronics worked like they were supposed to I drew a rough sketch of the enclosure for the cocktail machine after then measuring all the required electronic components I created proper dimensions for all the required pieces of woods and even a small guide on how to glue them together so I brought in a piece of peach pie woods with those dimensions and started drawing the outlines of all the 12 necessary pieces of woods once I was done I clamped the plywood's to the workbench in my garage and started cutting out the pieces with a jigsaw now I'm certainly not an expert when it comes to woodworking as you will clearly see later but after one and a half hours with the jigsaw the result of the 12 wood pieces was certainly not too shabby and after treating all the rough edges with a file I continued by marking the centerline of my bottom piece in order to position the one kilogram load cell in the middle of it in order to mark its mounting holes as soon as they were created were four millimeter drill I counter sank them on the opposite sides so that the mounting screws will later sit flush with the surface then I continued by transferring the remaining two mounting holes onto the centerline of the top piece of the scale and will the two mounting holes as well next I added spacers to the load cell and secured the two pieces of wood to its move m4 screws now I don't want to bore you with the details on how and where to create cutouts exactly since I pretty much only use different size drill bits key hole saws and files and you can also find out where positioned the electronics components in my plans for those projects so let's rather focus on entertaining moments like after I finished mounting the LCD and accidentally enlarged the hole from a rotary encoder to 12 millimeters it was not a tragedy though since superglue and two components he civ can nowadays secure everything and an app can hide the way to be cut out and speaking of two component adhesive after securing the dcj gruffudd in place I test fitted the pumps marked the mounting holes as well as three 10 millimeter holes next to them for the silicone tube and two of them all it is important though that the holes for the silicone tubes are tight fits which includes the three holes in the piece of woods above the glass now that okar outs were created I originally planned to attach them to one and our roof wood glue and nails but since that plan failed pretty quickly I'd rather use superglue to firstly create the cocktail mega shape temporarily and then added an additional layer of wood glue for stability but of course make sure to not glue the top piece of the scale to the other wood pieces and before not being able to reach the electronic components and safely fine a cocktail maker construction it is important to sorta long enough wires to all of them so that once the gluing process was complete we can solo the wires to its corresponding audrina pins like I described it in this schematic like always you can find the schematic along with the other plans of this project pictures and even a parts list in the video description once the electrical wiring was complete I installed the three-year silicone tubes inside the machine secure them in the corresponding pump cut the tubes at an appropriate length tight the three tubes together above the glass with a zip tie pushed the electronics inside the enclosure and mounted the remaining piece of woods to the enclosure with a hinge which means that after adding well CRO tape to the side of the housing the mechanical construction was also complete now as a first test sketch I created a simple piece of codes that can select each pump and turn it on or off when other the rotary encoder button after uploading it and powering the circuit with a power supply that offers 15 volts and 5 amps I positioned each pumps silicon tube in the corresponding beverage started each pump individually and measured how much mullah leaders they move per seconds now the results of the three pumps were pretty close to one another but just imagine if you have a soup like liquids that the speeds would be slower so with those new information in mind I created the final sketch for the Arduino which in a nutshell follows this functional principle once the stop button is activated the scale zeroes and pump 1 starts moving liquids as soon as liquids fills the glass anti-scale notices that a counter starts which allows the previously entered amount of milliliters to enter the glass once that timer is over though pump 1 deactivates the system waits for two seconds zeroes the scale and then activates pump 2 once again as soon as liquid 2 will fill the glass the scale notices stats start time or two and then deactivates pump 2 wants the delays over this madness then continues until all three pumps spill over the beverage new leaders and I can get plastered and just like that you can create your own cocktail machine since my version is a woodworking nightmare utilizes two thick tubes which causes vibrations and could definitely use some more pumps for wider drink variety there's plenty of room for improvements so I hope you give a project like this that's right as always I hope you enjoyed watching this video and maybe even learnt something new along the way if so don't forget to like share and subscribe consider supporting me through patreon to keep such videos coming stay creative and I will see you next


making
a
brand-new
peeking
account
starting
with
100
mil
in
the
last
episode
we
managed
to
get
ourselves
78
combat
with
80
strengths
83
range
HT
to
magic
and
of
course
full
void
in
today's
episode
we
are
going
to
evolve
this
account
into
something
much
greater
hope
you
guys
enjoy
and
always
good
to
know
we
start
this
episode
with
a
bank
value
of
75
point
1
million
8
5
magic
we
can
now
do
tella
block
after
doing
a
lot
of
research
I've
come
to
the
conclusion
that
this
account
needs
an
heavy
ballista
therefore
I
am
going
to
work
towards
monkey
madness
I
have
a
lot
of
skills
I
need
to
level
and
a
lot
of
quests
I
need
to
do
so
we're
gonna
start
working
towards
stats
but
before
we
continue
this
episode
I
am
very
happy
to
present
today's
sponsor
which
is
rave
shadow
legends
it
is
the
sensation
of
the
mobile
world
the
new
generations
RPG
this
is
actually
the
game
I've
been
playing
for
the
last
few
weeks
while
I
was
traveling
in
Thailand
with
or
without
Wi-Fi
you
can
play
rates
everywhere
my
favorite
things
doing
rates
all
the
dungeons
you
can
battle
in
here
you
can
fight
against
many
different
bosses
and
win
new
artifacts
that
will
help
your
champions
be
much
much
stronger
so
what
are
you
waiting
for
go
to
the
video
description
right
now
click
on
the
special
way
and
if
you're
a
new
player
you
will
get
100,000
silver
and
a
free
shampoo
be
great
be
badass
Tex
Weaver
all
these
treasure
will
be
waiting
for
you
here
in
your
inbox
for
the
next
30
days
good
luck
and
I'll
see
you
there
[Music]
for
de-mining
watched
our
request
completed
40
50
60
and
70
crafting
55
thieving
40
agility
look
I'm
floating
like
Harry
Potter
50
agility
55
agility
10
30
40
50
60
hunter
another
requirement
completed
now
on
to
the
longest
grind
yet
69
Slayer
starting
with
23
Wharf
cannon
quest
completed
for
the
dwarf
cannon
I'm
going
to
get
myself
60
nights
later
by
doing
Kohner
and
wilderness
lair
and
we're
gonna
open
all
the
keys
when
we
reach
the
69th
lair
there
it
is
lair
4th
this
layer
fifth
this
layer
[Music]
[Music]
I
gotta
kill
easy
kill
let's
see
the
price
shake
286
K
since
I
just
got
myself
55
Slayer
I
can
now
upgrade
myself
to
an
imputed
Slayer
helmet
this
helmet
provides
me
plus
15%
increased
range
damage
when
doing
Slayer
6
this
layer
90
range
oh
that
was
a
long
grind
but
there
we
go
69
Slayer
and
that's
the
final
skilling
requirement
for
the
mcmanus
now
we
only
have
a
few
quests
left
to
do
however
we
started
this
episode
with
a
bank
value
of
75
mil
now
we're
down
at
a
bank
value
of
58
meld
that
means
17-mile
loss
and
during
this
grind
we
gathered
ourselves
40
Lansky's
14
Bree
Maki's
8
hard
caskets
and
5,000,000
caskets
so
if
we're
lucky
after
opening
these
we
won't
go
too
much
of
a
loss
we
start
off
by
opening
14
brimming
keys
[Music]
from
14
Brimmer
Keys
we
got
1.48
mill
that's
a
decent
start
and
this
is
the
loot
from
40
Larenz
keys
[Music]
coins
magic
clogs
real
plate
legs
so
we
we
got
a
total
of
five
point
four
mil
from
the
Larenz
keys
this
makes
our
bank
value
64.6
ml
this
means
we
need
11
mil
from
the
clew
caskets
to
break
even
all
right
and
from
the
medium
casket
we
get
nothing
nothing
nothing
a
massive
clue
scroll
and
nothing
and
from
the
heart
caskets
we
get
sir
DOMA
Crozier
basically
nothing
another
nothin
nothin
nothin
nothin
nothin
nothin
nothin
Jr
flighting
completed
iSuppli
fire
completed
that's
monkey
madness
completed
plated
by
B
it's
what
I'm
talkin
about
I
really
didn't
want
to
do
this
but
I
had
to
that
counters
now
officially
been
destroyed
52
attack
45
defense
but
that's
totally
fine
in
a
few
days
we're
getting
our
stats
up
even
higher
what
the
[ __ ]
how
do
you
do
that
she's
completely
missing
the
well
and
the
last
requirement
I
need
four
more
commands
to
is
70
cooking
we
start
with
40
to
60
cooking
70
cookie
completed
now
we
can
actually
start
doing
the
quest
finally
I've
been
waiting
for
so
long
and
there
we
go
King
our
God
we
have
officially
been
freed
I
freed
the
language
ID
as
well
for
the
room
gloves
everything
we
have
done
until
this
point
was
to
simply
complete
this
quest
monkey
man
is
to
have
now
officially
been
completed
the
grind
the
grind
is
now
officially
over
man
this
is
so
powerful
so
strong
and
so
beautiful
it
is
time
for
me
to
test
out
this
heavy
ballista
in
Peking
situations
and
of
course
the
max
it
is
49
and
with
the
Special
Attack
62
and
remember
I
am
only
combat
82
I
got
a
kill
I
got
a
kill
I
got
a
kill
and
I
died
a
great
investment
the
room
pouch
and
I
died
another
kill
another
kill
another
kill
another
kill
kill
another
kill
yeah
another
kill
for
this
guy
he
killed
me
three
times
now
so
review
number
one
of
peeking
on
this
combat
bracket
with
a
heavy
boy
stop
it's
fantastic
so
easy
to
pick
it
with
this
combat
bracket
and
this
build
is
so
overpowered
if
I
can
get
myself
vengeance
as
well
I
will
be
undefeatable
Oh
light
what
is
the
pique
sick
oh
my
god
that's
big
that's
a
big
PK
with
an
emblem
to
930
k
PK
I
hate
my
life
I
hate
my
life
I
feel
bad
for
that
guy
all
right
we
got
ourselves
a
challenge
at
TYC
from
gag
eggs
and
they
want
me
to
kill
your
target
with
no
ring
or
neck
items
equipped
good
fight
we
completed
the
challenge
and
we
got
here
the
emblem
upgrade
used
to
be
so
simple
in
bow
hunter
you
kill
a
target
and
the
emblem
gets
upgraded
but
now
since
the
update
it
all
has
changed
I
just
killed
a
target
and
I
didn't
get
an
upgrade
but
either
way
we
smited
him
for
his
gmail
as
well
so
foreigner
KPK
oh
my
god
jacocks
can
you
please
make
tier
1
emblems
stackable
thank
you
very
much
alright
that
is
going
to
be
enough
bounty
hunter
for
this
week
we've
got
134
points
we're
gonna
use
it
all
on
bounty
crates
and
we
got
almost
twenty
prates
let's
open
up
combat
potion
amber
nice
oh
we
got
one
big
one
here
how
much
did
we
make
two
point
five
mil
I
actually
made
profit
it's
time
for
some
hybrid
peeking
using
magic
and
range
good
luck
to
me
[Music]
oh
we
gotta
kill
beautiful
140
KPK
nice
[Music]
good
fight
better
Jima
450
K
I
could
barely
find
any
fight
so
back
to
PHP
cane
Oh
a
killin
420
Kate
the
weed
number
all
right
let's
complete
our
challenge
no
ring
or
necklace
equipped
by
we
completed
the
challenge
we
got
13
points
[Music]
that
was
a
beautiful
kill
730
cake
good
fight
he
called
me
a
FA
call
me
the
f-word
that's
mean
but
we
gotta
leave
please
135
K
and
with
that
kill
we're
gonna
end
the
episode
our
current
bank
value
is
sixty
two
point
eight
mil
and
in
the
next
episode
we
are
going
to
take
this
account
to
the
next
level
hope
you
guys
enjoy
it


so the keen-eyed among you have noticed that the last few videos on my channel have been filmed in a brand new space and that is because in the last couple of months I have been building a brand new workspace and studio and in this video I'm going to give you a quick tour of that workspace let's get started okay so the biggest change about the space is actually the size of it I am finally out of my bedroom I've got a proper I think it's 400 square foot space to work with now which is so much better for the versatility and kind of four areas I'm going to show you here we have the desk area because a podcasting / film set area that's really versatile and can actually have multiple different backgrounds we have a music area because I've been doing a lot more music lately and then finally we have our storage area where we keep lots of c-stands and lights and lenses and all kinds of stuff like that but let's get started with the desk since that's probably the thing most of you are interested in so the desk self is a Jarvis bamboo standing desk which means it has this little controller over here which lets me raise a desk or lower the desk or I can actually program in different presets so I could do a standing preset or a sitting preset so we did a dual monitor video a little while ago and these dual 4k monitors were featured in that video I won't talk too much about them the other kind of big thing on this desk are these monitors these are yamaha HS sevens i believe and i now have them on these speaker stands which put the tweeters at roughly ear height so even though this space isn't perfectly treated for audio production the monitors are at least at the correct height for me mixed music which i've been trying to learn how to do recently also on the desk we have a couple of music production things there is a native instruments maschine which I use as a drum pad and a s61 MIDI controller which works really well for kind of composing songs and then we have a Corsair k95 gaming keyboard a Logitech g5 seven Wireless which I had been wanting them to make for years they finally answered my prayers and a few other knickknacks we've got a wireless phone charger which my editor Tony gave to me few of these these are sand discs I think they're SSDs but in external enclosure form so these are actually incredibly fast and I can edit off of these just as fast as I would off of an internal drive which means if I have to travel then I can just take one of these with me and even if I don't have enough space on my laptop I can just put files on this and edit like normal just pretty awesome so we also have ohed we have a stream deck here so this is the elgato stream deck now a lot of twitch streamers and people who do game streaming they use this for like tweeting mother in the game so they'll have to alt-tab out of it I do something different I actually use autohotkey to bind each of these buttons to a different folder that I have to open really often on my computer so this button is for the current videos main footage folder this one down here is for my screenshots folder when I hit it I can automatically bring up a window on my screen so with all that said let's talk about why the desk is so messy because it's definitely not like a minimalist desk and part of the reason for that is I've been working on a project recently where I had to use Logic Pro to mix some audio but I wanted to use all this hardware so I've got a doc over here which charges my macbook and allows me to plug in all kinds of stuff into it and then right here is what's called a KVM switch this if I hit this button will allow me to switch the keyboard the mouse and the speakers the audio interface and the monitor is over to my macbook which I guess set in this dock here and plug in and I'm good to go I can use my macbook just like a desktop alright so underneath the KPM we have the audio interface this is a scarlet 18 i8 from focus right and it's got I think like 18 different inputs but I use the main four on the front so a couple of these with a podcast mics which I'll show you a little bit later and the other two are well number one I have my sm7b mic right here which I'll use for voiceovers or for vocal practice sometimes since I started singing lessons about a year ago and there's another mic over there which is for the same purpose but as a condenser mic also going into the interface are of course the HS 7s and then these Sennheiser HD 600 switch are my absolute favorite headphones I do most of the mixing for the audio in my videos on these headphones last but not least we have the computer on the floor you know it's a good editing computer it's got a core i7 in there GTX 1080 and it lets me get most of my editing done and then the chair is an office master m5 which I actually learned about from a Linus tech tips video I like this chair but I think if I were to go back in time I wouldn't buy it because at least in my opinion I think fancy office here is a little bit overrated and I think it's more important to just get up take breaks make sure you're exercising make sure you're staying flexible and honestly I've worked in like wooden kitchen chairs coffee shop chairs they're all kind of the same so I don't know some people are probably gonna hate me for that opinion but I don't think fancy office chairs are all that necessary anyway let's move over to the video set area which is also used for our podcast so we have this table here which is just from Ikea they're a couple of audio-technica ATR 2035 condenser microphones attached to it these are what we use for the college info geek podcast but this table actually pulls triple duty lose it for the podcast use it for videos on my channel you've probably seen the digital file organization video or maybe the recent one that Tony and I did on the iPad and it's note-taking abilities and then we also use this as kind of a main b-roll set will sometimes set up C stands with cameras going overhead so they can film stuff top-down or we'll use it for glam footage and we also have these shelves from Ikea with plenty of fun little props and of course the obligatory llama on it as well and then on this side of the space is all the music stuff I've been into music for many many years but in 2019 my head writer ransom he introduced me to an artist named Tasha Sultana and if you haven't heard of them you really need to go listen to them but they do what's called live looping where they use a looper pedal to create loops of multiple instruments and that I kind of went crazy when I learned about that so I've cut this looper pedal over here it's a boss RC 300 which allows me to do multiple loops at the same time there's a line six helix for guitar tones and bass tones we have a Korg mini log XD synthesizer which is polyphonic so I can get chords it can do our pagers all kinds of stuff a roland spd-sx drum sampler so I can do drums a mixer for all of it and then the guitars and the piano this is a kawaii I think see a 78 it's a fantastic digital piano so all this runs into the mixer that runs into this interface and I'm able to plug my laptop into this if I want to so I can record or I can plug into this PA over here if I want to just output the sound it just kind of jam out so I've been doing that to create some compositions like the one that I just recently put up on Spotify called icicle swords which sounds a bit like this [Music] and of course I will have that link to the description down below but we're gonna move on to the storage area so this is one of the reasons I'm really happy to be out of the bedroom I have more storage for the gear that we need to make better quality videos so let's kind of start back in the corner here I've collected a lot of tripods over the years but my absolute favorite one is this Sackler one mkbhd talked about this in his studio to our video and this thing is amazing because you can just adjust the height of it with three little levers at the top and that has enabled us to just take a lot more b-roll a lot quicker and one of the biggest things that I tried to keep in mind when building the studio and whenever I buy a piece of gear is is it going to reduce the amount of friction involved in creating something if I can make that friction go away if I can make the process faster that means I can make better things more quickly one other thing that I do want to note about most the tripods not all of them because we do have a bigger camera we're working with now for some of the shots but for the camera that Tony is holding on the gimbal right now we usually have these gorilla pod heads on we have legis we have the attachment on every camera we use I actually have an old ADB right here so it was the attachment right there and then I try to keep a gorilla pod head on nearly every tripod or tripod attachment that we use that way instead of having to screw in to a tripod plate which again takes time adds friction we can just click it in instantly and we're good to go so I have that on here I have that on the overhead setup which we're going to talk about a little bit I have one on this sea stand here and that just makes creating things really quick and I want to give a shout out to Bob Claggett I like to make stuff for giving me that tip and speaking of c-stands we do have I think two C stands right now these things have been a godsend I used to use the cheap light stands off of Amazon and well they work for cheap lights but when we're suspending cameras over stuff when we're putting heavy lights on things the Allsteel C sans really really helped and for anybody who does their own video production you're gonna want sandbags because if you throw a sandbag on a c-stand this thing is not gonna tip over even if you have a good amount of weight on the C stand so anybody who works in film production will tell you these things are worth their weight in gold even though they're just their weight insane oh speaking of lighting I'm gonna come back to this but I do want to quickly go over here and show you one other thing that's kind of above my desk so one thing that I've tried to do with my video production is use better lighting techniques and one of those techniques is to use what's called a hair light so we have a light that's kind of above my desk so whenever I'm sitting and doing a regular video I kind of have some nice lighting on the back of me but this thing is easily able to and if you want to step back you can show this swing over and now we can light b-roll that's going top down on the table really really easily so again it's all about versatility so now let's go over to the shelves here if these are themed in the video Ikea shelves but they work really well and here we've just collected a lot of the film gear that we need quick access to so all of our lenses and we've collected quite a few lenses we're not using a Canon C 200 for most of the a role that we shoot which is pretty great that quality on ax is amazing we have some audio gear up here these are the camcorders that we actually used to use for the podcast but now that we have the C 200 which can film for more than 30 minutes we don't really need these for much anymore so maybe I should sell them another thing another one of these little Joby Gorillapod x' on a tripod attachment so any tripod that doesn't have a gorilla pod head already on it we can just throw this attachment on there and we're good to go same with our little slider so if we want cool slider shots I've got a real applaud attachment on there we're good to go with that and then over here we have a pegboard also from Ikea though I do want to give a shout out to Matt D Avella for giving me the idea for this guy and this is where we keep the gimbal usually if we're not using it which we are right now we keep switch pod which my friends Pat and Caleb actually invented and I kick started actually love this thing and I actually don't know how this little Luka got here but I think you did that didn't you actually I like it it's dope and they have this we have these little drawers too so we've got my little attachment screws bolts stuff like that can go in here and right beneath it we have a drawer unit which also doubles as the charging station so for batteries I want to get a label maker so I can like have a dead and a live thing but right now it's been putting dead ones up here and fully charged ones down here so I'll just throw them in there when I'm not using them they'll charge up and then this one is batteries for the c200 I've got a iOS cord for iPads and stuff like that and then within these drawers we have a kind of rough organizational method that makes sense to me so like tools and stuff going here this drawer is gonna be for just random film things like filters this is a random cord drawer so HDMI cables DisplayPort cables and then this is the audio drawer which is mainly just XLR cables for microphones and this is the microphone that we actually shoot most of our videos on down here we've got extra extension cords extra plug strips and finally just some random stuff that goes to the c200 I try to keep that grouped and that brings us to the last part of the studio then I'll show you which is the overhead setup so sometimes we will set up for overhead with a c-stand the b-roll area but this is just for quick and dirty overhead shots I can go in here instantly turn these lights on and then if I have like a book that I'm gonna show off I can slide the camera into here again we have a Joby Gorillapod head on this arm which i believe is from Manfrotto and we can just do really really quick overhead shots and then I had this monitor laying around so I thought well I can flip the screen out on the camera and see what I'm doing but if I want to have a better view of what I'm doing I can actually plug this little HDMI mini HDMI cord into the camera and then see what I'm doing on the monitor and the monitor is on an arm so it can easily be adjusted for position and if you can come in close here the one thing I do want to mention I these little sticky cable holders these are super cheap and I can you can get my home depot actually so if I don't want this cable just falling back here you can just easily shove it in there when I'm not using it and these actually work really well for phone chargers any kind of cable that you want on your desk with that you want out of the way it's really nicely anything so like I said earlier one of the reasons that I set the studio up this way was to reduce the friction involved in creating things as much as possible and when I'm actually sitting down at the computer one of the other tools I use that really reduces the friction in my life is - lame - lame is a tool that gives me a ton of shortcuts for what I need to do online it automatically logs me into websites and even auto fills long forms and it works on every single platform that I use works on my PC works on my Mac works on every single one of my iOS devices when I'm on the go and if I were an Android user it would work there as well - line essentially gives me a convenient and secure place to store and access my passwords my form data and even payment information so I'd have to go hunting for my credit card or build some sort of memory palace every time I want to buy something and that helps me spend more time doing the work that I want to do so if you want to give to actually in a try for yourself go over to - lang comm slash college info geek and sign up to get a free 30 day trial of - Liam premium where you can try all the features out for yourself and if you do like it you can also use the code college info geek once you upgrade to a paid subscription to get 10% off and to support my channel big thanks as always - - Lane for sponsoring this episode and thank you for watching as well hopefully you got something useful out of this episode and I will see you in the next video you can get subscribe right there if you haven't done so already or click right over here which is probably covering my face to get one more video on this


don't
just
sit
there
race
I
had
to
answer
someone
relax
you
dick
hey
guys
Korean
check
out
instant
gaming
foreign
cheap
game
keys
and
click
the
link
in
the
description
below
a
argent
so
welcome
back
with
a
36
of
the
racing
marathon
I
do
it
oh
no
I
have
to
I
have
to
age
range
31
to
40
now
goddamn
it
now
I'm
feeling
now
I'm
feeling
really
Boomer
man
so
the
very
first
thing
that
always
notice
on
a
play
grid
2
is
the
extreme
step
up
in
graphics
just
just
removing
the
yellow
filter
and
actually
making
sure
that
everything
looks
nice
and
sharp
it
just
improves
the
visual
quality
by
a
such
a
huge
amount
then
of
course
you
have
the
lighting
and
environments
like
the
definitely
do
definitely
stepped
it
up
there
will
the
customization
so
they
did
add
a
few
Ella
a
lot
more
customization
for
this
game
dum
dum
dum
tum
kuru
4head
now
actually
I
don't
want
a
flashback
I
got
mangoes
man
yeah
I
don't
think
I
don't
think
I
have
any
chance
of
winning
this
oh
maybe
okay
buster
gotta
settle
on
the
grip
mechanics
of
the
first
one
my
intuitive
than
the
drift
mechanics
of
return
so
I
think
overall
like
from
a
gameplay
perspective
for
prefer
grid
one
we
also
have
a
Juliet
brother
Alfred
G
blah
blah
blah
coffees
better
I
do
not
want
to
drive
in
the
Alfa
father
of
ammaji
okay
not
interested
in
cheese
but
it's
back
up
here
boy
what
are
you
doing
is
dude
that
last
second
lane
change
was
such
a
dick
move
nice
drifting
is
faster
then
gripping
in
this
game
so
if
you
get
a
nice
drift
on
can
utilize
it
to
pass
your
opponents
but
the
problem
of
that
Java
drift
it
really
[ __ ]
you
the
sponsoring
system
in
this
game
is
not
as
fun
as
the
one
in
in
grid
one
in
grid
one
and
it's
a
lot
more
it
makes
more
sense
you
just
pick
the
bigger
numbers
and
you
have
two
different
you
have
two
different
sponsors
and
you
know
if
you're
made
responsible
pays
double
here
it's
like
there's
this
one
Raceway
gonna
get
more
fans
if
you
use
the
sponsor
I
don't
like
the
sponsor
system
in
this
game
so
much
nice
finish
Ariel
automatic
crossbow
actually
I
have
to
take
the
crossbow
that's
an
Austrian
car
don't
just
sit
there
I
had
to
answer
someone
relax
you
dick
okay
that
was
quick
what
sir
I
can't
I
can't
see
the
target
because
it
blends
in
with
the
Sun
it
was
actually
impossible
to
read
oh
I
think
the
covet
took
more
damage
I'm
not
sure
a
cop
could
be
honest
game
would
be
fantastic
oh
one
of
the
things
whoa
one
of
the
things
I'm
missing
from
from
grid
one
is
definitely
the
cockpit
cam
as
an
option
what
little
that
actually
counted
as
a
cut
I
am
self
on
the
outside
how
does
it
see
it
doesn't
count
let's
cut
[ __ ]
mmm
that
hit
heard
see
that's
the
thing
either
you
have
too
much
drift
or
you
have
too
little
drift
getting
that
sweet
spot
in
this
game
is
so
difficult
and
now
I
made
it
through
the
left
and
the
right
but
then
I
got
stucked
afterwards
derp
derp
derp
hate
on
the
right
and
a
popped
my
left
alright
popping
everything
weight-reduction
bro
oh
I
lost
the
wheel
[ __ ]
just
a
bit
more
easy
why
how
is
that
a
cut
are
you
kidding
me
man
I
went
off
the
track
I
went
off
the
track
any
count
that
as
a
as
a
[ __ ]
cut
10
million
on
YouTube
[ __ ]
changed
the
wheels
okay
remind
me
after
this
tournament
I'll
change
to
Venus
I
really
prefer
to
play
with
realistic
damage
otherwise
you're
just
gonna
end
a
bull
riding
24/7
how's
it
always
looks
fun
when
a
car
thank
you
is
deformed
like
that
oh
the
pain
I'll
take
second
what
the
[ __ ]
is
my
graphics
card
dying
dad
look
monka
as
for
my
graphics
card
man
[Music]
then
I
straight
up
hit
that
deer
that
deer
definitely
got
hit
there
I
carried
that
guy
all
the
way
to
the
front
[Applause]
what's
wrong
with
this
corner
whoever
puts
these
dividers
in
the
corners
needs
to
be
grilled
alive
what
wait
wait
where
would
that
last
part
that
last
part
cut
wait
oh
it
didn't
count
because
I
wasn't
back
into
bounce
yet
that's
right
I
wasn't
back
into
bouncy
I
was
like
whoo
well
I
didn't
I
get
a
Garnica
but
I
wasn't
back
into
bouncy
it
so
it
makes
sense
bump
you
that
was
literally
200,000
points
adrift
[ __ ]
that's
literally
the
guy
isn't
it
there's
literally
the
guy
got
2nd
you
know
initially
initially
I
didn't
think
the
drifting
mechanic
working
on
you
so
much
but
after
playing
after
playing
the
first
one
again
I
really
missed
sorry
missed
the
handling
of
the
first
game
oh
it's
just
more
fun
what's
more
fun
to
have
a
grippy
cars
so
I
get
a
reset
but
I
think
my
opponent
is
completely
destroyed
did
Samantha
miss
on
the
race
I'm
not
even
sure
which
place
I'm
at
right
now
I
was
I
was
kind
of
hunting
down
the
others
in
front
of
me
and
I
didn't
even
notice
it
wasn't
first
that's
usually
that's
usually
the
mindset
it's
usually
the
zone
to
be
in
to
be
like
the
best
possible
way
[Applause]
okay
this
is
the
wait
redacted
version
of
their
Gerar
weep
nice
to
get
rid
of
them
tab
for
the
kids
2018
two
years
ago
man
super
old
if
I
were
to
100%
this
game
we
need
approximately
20
hours
are
it's
a
bonus
game
a
time
Gary
did
do
a
meal
edition
of
a
moving
home
in
dribs
2019
let's
go
okay
to
be
honest
haven't
played
the
game
since
the
original
release
of
the
game
I
am
and
then
people
who
asking
for
it
so
they
brought
it
back
like
cockpit
camera
game
looks
good
though
beginning
price
half
price
think
30
euros
would
have
been
fine
it
just
doesn't
feel
as
ambitious
as
that
a
great
games
like
red
wanted
to
just
put
a
lot
more
emphasis
into
everything
you
know
the
thing
that
is
missing
from
the
new
greatest
is
soul
of
the
original
and
two
games
like
soul
that
the
first
one
had
that's
what
I
want
back
everything
everything
the
dead
ingrid
one
to
me
was
so
exciting
can
can
I
see
how
much
a
played
from
the
original
create
2019
before
I
moved
to
home
to
other
games
check
out
season
three
whoa
Judy
and
that's
him
good
and
what's
[ __ ]
what's
the
games
apart
it's
okay
but
there's
one
of
those
games
that
is
okay
it
doesn't
get
me
super
excited
but
it's
not
it's
not
terrible
you
know
I
think
it's
bland
does
that
make
sense
let
you
get
cars
to
get
tracks
in
the
new
race
there's
nothing
to
it
other
than
that
Stata
users
have
this
game
and
the
crew
oh
my
god
Jesco
Oh
FXX
[ __ ]
hell
Jesco
let's
go
I
wanted
to
get
inside
the
chesco
because
I
have
not
seen
a
Jessica
from
the
inside
it
pretty
sure
that
steering
wheel
alone
costs
more
than
my
entire
streaming
setup
yeah
bring
back
the
cockpit
view
and
definitely
nice
that's
pretty
funny
is
you
can
actually
remove
the
steering
wheel
Tesla
NASCAR
hey
Yolo
mode
let's
hit
the
gas
man
yeah
this
is
pretty
this
is
pretty
much
what
great
is
all
about
guy
events
and
then
there's
you
got
exhausted
in
this
game
was
just
car
race
next
car
race
next
car
is
night
Caroline
and
so
on
and
so
forth
attendee
released
is
once
is
due
to
season
three
like
did
it
release
more
cars
and
content
and
for
the
people
that
enjoy
the
kind
of
self
either
way
everyone
guess
the
tights


a conventional drone is controlled by varying thrust on each one of its motors and propellers and by increasing the thrust on one side of the drone it will cause the drone to tilt now this works nice and well down here on earth where the atmosphere is nice and thick but up in space things like rockets and large satellites require a different form of control now probably one of the most common forms of control for the larger rockets and satellites is gas thrusters these work by expelling high-pressure gas out of very small nozzles mounted at various points on the spacecraft now what I want to do is try and apply this gas thruster reaction control system to a drone but first let's talk to someone who might know a bit more about this subject than I do hello hello good thank you this is Joe Barnard here's a YouTube channel called bps space where he builds model rockets but the Rockets that he builds on your average model rockets yep this is a replica of the SpaceX Falcon Heavy and it uses thrust vectoring for control Joe has been developing this the respect ring system to eventually land a model rocket proposal II that's right this video isn't being played in Reverse more recently he's been experimenting with a gas thruster reactor control system [Music] so I had to ask him a few questions if you could split up the hole of an RCS project into three components what would they be you wanna start with the plumbing that actually is pretty accurate you you probably want to start with the plumbing so you can figure out which valves you need to actually well okay the problem is it's all interdependent if you start with the valves you also want to consider the actual moment that you want to impart on the vehicle if you want to do the math about it don't have to consider the flow rate in your vows but mostly you'll start with the plumbing then I would focus on how are you gonna control this so like what is your flight controller going to be your power source your wiring and maybe a little bit layout stuff and then the last part of the project which in my mind or at least in my project has taken the longest is the control side of things so what's the what does the control logic look like when does the computer decide to fire a valve and how do you keep your vehicle from spinning out of control or not controlling itself at all and crashing right yeah like how do you minimize your your thumb factor so as Joan mentioned it's best to get the hardware sorted first this will include things like the pressure vessel the vowels for controlling the airflow and also the nozzles for exhausting the high-pressure gas now with Jo system he has to fit his into a model rocket which means it has to be quite compact whereas on a drone I have a bit more space to play with so for my pressure vessel I'm going to be using plastic bottles this is a 2 liter plastic bottle and it can handle upwards of 150 psi it's really lightweight and they're really cheap also my compressor only goes up to about 116 psi so these bottles are pretty ideal in order to turn this plastic bottle from a drinkers container into a pressure tank I need to connect a sealed tube to the cap this is done by 3d printing a heavy-duty threaded cap then an o-ring is inserted to keep a tight seal with her throat at the bottle and after a quick pressure test it seems to hold fine because the control of the drone is somewhat limited by how much air can be stored in the bottles it's important to optimize the nozzles for the maximum thrust possible without wasting too much air so I've built this thrust test and it's comprised of a load sail to measure the thrust the thruster nozzle a set length of tubing and the solenoid valve that we'll be using the drone the data from the load cell is then logged to an SD card using this Arduino board so that I can plot the graph of the thrust later the air is supplied from a single two liter plastic bottle so I can get a rough idea in terms of thrust duration it's then filled using this larger tank via a pressure regulator so that all the tests are as consistent as possible I chose to run the test at 60 psi pressure as it would allow multiple tests to be run without filling the tank every time plus are more interested in how it will perform at lower pressures as that's when I lose control to find the best nozzle design I chose several options none of which had any theoretical calculations behind their design but that's the advantage of having a test rig the first nozzle was a straight-through nozzle which would act as a control the second was a straight cone nozzle the third was what I'd call a conventional rocket nozzle with its distinct bell shape and the fourth is a reverse or a horn style nozzle each nozzle has the same throat diameter of four millimeters as well as the same exit diameter of 10 millimeters and a length of 15 millimeters take a guess which nozzle you think will perform the best in the comments down below I ran into stress test six times per nozzle to get an average and imported data onto the following graph now before I tell you which nozzle perform the best let's just admire how little thrust this system actually produces yep that's right the best nozzle produced a peak thrust of 0.62 Newtons or the equivalent of lifting about 63 grams so here's the lineup did you guess that the straight nozzle would perform the best also the bell shaped nozzle perform the worst out of all of them now because these solenoid valves have a small orifice of about 2 to 3 millimeters I thought I should probably try a smaller diameter nozzle so I made this two millimeter diameter straight through nozzle and it outperformed all the previous contenders in both peak thrust and duration so I'm gonna go with this let's talk about the drone design so the plan is to use two counter-rotating propellers mounted inside of a single duct this will be mounted in the center of the drone and won't provide any pitch or roll control it will be able to provide your control by adjusting leeteuk from each of the motors in for pitch and roll control I'm going to have three nozzles mounted on three long arms extending out from the center of mass the reason for choosing three nozzles is because it's the minimum amount of point of thrust you need to have stable control similar to how you can't have a stall with less than three legs now the reason why a regular drone will have four arms or more is because they need equal amounts of propellers to counteract the talk but because these nozzles don't produce a torque in the yaw direction I should be able to get away with three the frame parts consisted of a few 3d printed parts using PLA filament supplied from my filament sponsor 3d print ck as well as some aluminium spars when assembled it created a triangular frame around the center duct then I mounted the electronics starting with the relays that would apply power to the valves then the vows themselves which one of them weirdly had a hole at the top which would leak air from but the leak was very slow so it shouldn't be an issue then came the flight controller Arduino board and radio controlled receiver which allowed me to actuate the valves from my controller I then mounted the arms which the nozzles would attach to and temporarily mounted the nozzles using tape in case they need to be removed later for modification so now most of the hardware and electronics are complete apart from mounting the bottles but before I give it a test we need to consider how the flight controller will control the valves with the regular drone the throttle can be increased or decreased at different rates depending on the required control output but these valves can only be fully open or fully closed therefore we need to configure the system to know exactly when to trigger the valves which is where once again we need to sync Joe's advice so this is the this is like this is a vendor constant theme of like all of the rocketry stuff I've done it's it's actually comparatively easy to develop all the hardware and build everything but the devil is in the software so right now I have like if you were an actual controlled engineer you wouldn't want to hear this but I it's just a gated and saturated saturation limited PID it's fairly primitive if you do enough simulations so I have a simulation built up for how the vehicle should actually be able to control itself and simulate that helps you dial it in but it's there are much better ways to do it if you're willing to get into like full state space control or something that actually considers the torque that each thruster can put out but that's also kind of in that year so it's easier just set up a little test stand yeah I covered this yet but that's kind of how I've been doing it you have basically you can see actually two holes in the vehicle right around the center house here and so it's actually slightly below the center of mass so the vehicle wants to fall over and what I've been doing is just setting it up in this mount where it can rotate on this axis and this axis and just you just start loading PID values and giving it a shot just throw it on arrow yeah that's not how it really works in the aerospace industry but these are model rockets so gets the job done yeah all right well I think that's enough information for now hopefully yeah I'll keep you posted on how this thing goes control systems are hard but it seems promising well yeah you're far better control system than me well thanks and good luck yeah you do yeah all right I'll take you soon bye now I'm going to take a slightly easier route to Joe as I want to use a conventional drone fly controller this will save a lot of time as the code in these things is far beyond my knowledge level so to convert this fly controller into the similar gaited PID system that Joe mentioned I'm going to need the Arduino to run a small bit of code essentially the fly controller will output a throttle value as if it were communicating with a drone motor the Arduino will read this signal and convert it to an on and off signal by gating it with a set threshold when the output signal from the fly controller increases above this threshold the Arduino will open the valve now this threshold will depend on many different factors so let's program it into the Arduino and give it a test so I've hung the drone from the ceiling so that I can sort of simulate it in midair so it can now swing forward and backwards and as you can hear the valves do actuate now I can't test the role in this configuration I've just hung it roughly about the balance point for the pitch axis and you can hear the valves actuating when I move the drone so what I'm going to do is I'm going to pressurize the whole system using my large tank down here on the ground and see if this see if this works it should work all the valves are actuated I just haven't tested it with the air yet so I should be able to push down on here and this nozzle will fire that's actually really well tuned already let's try the other way so it pushes up the two jets to the front should fire so we're trying to hold a specific angle okay so what I can do is I can also flick this switch and it will always try and self level let's try the self level so because it's hanging slightly nose forwards as you can probably see apologies my remote keeps talking to me yeah when it hangs nose forward it will try and lift the nose to bring it level if you watch three - what that is working way better than I expected Wow oh my god that's so cool it sounds absolutely amazing right cool now I think we need to install the bottles for its own air supply and add some motors the motors were mounted bottom to bottom and soldered in a way that they would rotate in opposite directions so they provide a net zero talk the bottles were then mounted to the frame using large zip ties and then it was a case of plumbing all the bottles and vows together this was done using flexible PVC hose that would push fit into various connectors which makes the plumbing super easy and also reversible if something needs changing and then hooked up to the air tank for a pressure test and to check for leaks which was successful okay so the drone is all ready to test I haven't pressurized it yet but I've got all the electronics turned on I'm actually going to run it on a tether that way I can use the full volume of the large tank and I don't just run out of air really quickly because for his first test I wanted to sort of gauge how it feels on the ground so I'm just a couple of pressure tank and give it its first test I'm slightly nervous about this but you know it's got to be tested so it's armed the motors let's check the valves okay what the valves are working right [Music] [Applause] [Music] let's try it again [Music] the motor and propeller I chose should be capable of 1.5 kilograms of thrust per motor and this should be plenty to lift this drone but for some reason it didn't want to lift off the ground so I tried raising the duct off the ground a bit to see if it improved the airflow [Music] it definitely needs the the bit off the ground just to control though these initial tests were run at about 60 to 70 psi the reason for this is when I filled a 24 litre tank to 100 psi and then fill the 6 litres of bottles from that the pressure drops to around 80 psi then after messing around on the ground for a bit the pressure drops are more [Music] [Music] okay that seemed an issue with the tether I seemed like it pulled and drone so it was time for the first untethered hover for most of the following test flights I was adjusting the values inside of the fly controller to make the drone react quicker and hopefully achieve a more stable hover that was a lot better yeah the battery dies like instantly I was full throttle there yeah I think I needed to get a better battery really with the new battery and the bottles filled to around 80 psi it started to look a little more promising so I think I need to tune the gyro values up a little bit more because of the lower pressures it does start to lose control let's just try that again with the tanks relatively empty yeah it just has no control and the lower pressures the only way to get the bottles filled to 100 psi was to connect it straight to the compressor okay this is the first test at 100 psi bottle pressure [Music] [Music] now I know it's a bit disappointing that the noise from the main lift propellers are louder than the gas thrusters but there's not much I can do about that so just imagine it sounds like this [Music] none about you bad call that pretty good success the motors are a bit toasty and so they don't melt through these 3d printed mount I should probably in the testing therefore now I want to say I'm so happy with that [Music] if you'd like to learn more about how high-pressure gas flowing through a nozzle causes this drone to move through the air or how a rocket accelerates into space the most effective way to learn is by doing which is the reasoning behind carrying out this project but a far simpler method of learning is to challenge yourself with interactive content brilliant challenges you to solve problems to broaden your understanding of various topics they have a wide range of interactive courses from basic forces and acceleration to real-world challenges such as finding out the correct sized battery for your drone each course contains clear diagrams and animations to help you learn your way to becoming an engineer to support these projects and learn more go to brilliant org slash Tom Stanton and sign up for free and also the first 200 people that go to that link will get 20% off the annual premium subscription so there we have it a drone controlled by gas thrusters I'm really happy with the way it performed in the end I honestly didn't think it would even fly so the fact we've got a good 10-second hover or so was really good you may wonder why there's these huge tubes on it now and the massive arms and that's because I actually wanted to test where the longer arms would give the thrusters a bit more authority to keep it under control and this worked well at the lower pressures but when I put up to 100 psi it then didn't fly too well this resulted in it crashing and breaking one of the arm mounts so the drone needs some repairs doing to it I'm not sure exactly how we could tackle the issue of the pressure changing so much throughout the flight because I guess theoretically when the pressure halves so does a thrust which then means you need to double the Jarrah sensitivities or maybe even at those pressures it doesn't have enough thrust to control the drone I'm sure it can be fixed on a newer version but I think this is the best that this drone will fly I had to thank you very much for watching this video I hope you enjoyed this project and if you did then it'd be great if you can leave a thumbs up on this video if you're new to my channel and want to see more videos such as this then please click subscribe down below and a huge huge thanks to all of my patrons for supporting my channel and letting me try crazy projects like this now I believe the Sun is just about to set so I'm good timing to wrap up this video thanks once again for watching and I'll see you in the next video goodbye