
English: 
Hi, how are you?
I've done some extensions for the Halbach motor and I would like to demonstrate
Methods for tuning and testing the performance. I will send the motor to FliteTest and hopefully they will make it fly.
in my earlier video there were many comments about
balancing the motor. In fact, I was lucky that my first motor was well
Balanced in order to balance the Halbach Rotor without the stator
I've created this simple wheel printed with light gray PETG
The wheel can be inserted into the large ball bearing instead of the stator
after assembling the rotor including all the magnets, it is placed onto two parallel and
horizontally aligned rails
I'm using some spare 8 millimeter shaft as you can see the rotor slowly starts rolling on its own and
Swings forth and back
After a while it will stop and the heavier side is pointing downwards
Small screws are inserted into the holes at the top as a counterweight.

Chinese: 
你好你好吗？
我已经为Halbach电机做了一些扩展，我想展示一下
调整和测试性能的方法。我将把电机送到FliteTest，希望他们能让它飞起来。
在我之前的视频中有很多评论
平衡电机。事实上，我很幸运，我的第一台电机很好
平衡以平衡没有定子的Halbach转子
我创造了这个印有浅灰色PETG的简单轮子
车轮可以插入大滚珠轴承而不是定子
在组装包括所有磁体的转子之后，将其放置在两个平行的上面
水平对齐的导轨
我正在使用一些备用的8毫米轴，因为你可以看到转子慢慢开始自行滚动
向前和向后摆动
过了一会儿它会停下来，较重的一侧会指向下方
小螺钉作为配重插入顶部的孔中。

Chinese: 
我建议在转子的两侧插入相同的重量
请注意，此方法是一种静态平衡方法
动态平衡要复杂得多，需要非常先进的工具
但是转子两侧的孔对于动态平衡非常有用。一些
需要进行试验，直到它平衡良好，但随后它会旋转得更顺畅。
最初，我将这些小孔的钻孔钻入3D打印部分
但现在我也更新了3D设计
我将确保所有修改过的3D文件都可供您使用
在用适当的定子组装电动机之后，我想展示用于测量速度的钻床方法
常数“Kv”。
实际上，我正在使用电钻

English: 
I recommend to insert the same weight on both sides of the rotor
Please note that this method is a static balancing method
Dynamic balancing is much more sophisticated and requires very advanced tools
But the holes on both sides of the rotor will be very useful for dynamic balancing. Some
Experimenting is needed until it's well balanced, but then it will rotate a lot smoother.
Initially I drilled those holes for the little weights into the 3D printed part
But now I've also updated the 3D design
I will make sure that all the modified 3D files are available for you
After assembling the motor with its proper stator I would like to demonstrate the drill press method for measuring the velocity
Constant "Kv".
Actually, I'm using an electric drill for that

English: 
Fix the shaft let it spin as fast as possible
and measure the AC voltage between two of the three leads as the motor
Also the rotation speed of the drill needs to be measured
Ideally the motor would need to be attached, but I only have two hands
Finally a simple formula is needed for KV. In my case, it's roughly
350 rotations per minute per volt the most interesting measurement is certainly the efficiency
Hopefully there is not much power lost when transforming electrical power into mechanical power
The torque is a value which needs to be known for this calculation
So I've constructed this rotating motor mount which is of course 3D printed
The motor is fastened to a piece which has a long wooden lever
Actually, there are two

Chinese: 
固定轴让它尽可能快地旋转
并测量三个引线中的两个引线之间的交流电压作为电动机
还需要测量钻头的旋转速度
理想情况下，电机需要连接，但我只有两只手
最后，KV需要一个简单的公式。就我而言，它是粗略的
每伏每分钟350转最有趣的测量肯定是效率
希望在将电力转换为机械动力时没有太多的动力损失
扭矩是该计算需要知道的值
所以我构建了这个旋转的马达安装座，当然是3D打印的
电机固定在一个带有长木杆的部件上
实际上，有两个

Chinese: 
可移动的部件，就像两个大型滚珠轴承内的大轴
当然我会使用我的新参数和3D可打印回转轴承
我在另一个视频中介绍过它
但是当我制造这种旋转电机支架时，我还没有这么酷的旋转轴承
为了防止它意外扭曲引线。我添加了一个螺丝来减少移动角度
因为我想在飞机上看到这个电机，我对颜色进行了改变，直接固定在螺旋桨上。
我建议使用推杆配置
因为轴承上的负载更好，并且如果飞机坠毁，电机有更高的生存机会

English: 
moveable pieces which are like a big shaft inside two large ball bearings
Certainly I would have used my new parametric and 3D printable slew bearing
I've presented it in another video
But at the time when I made this rotating motor mount I didn't yet have such a cool slew bearing
In order to prevent that it accidentally twists the leads. I've added a screw to reduce the moving angle
Since I'd like to see this motor on a plane, I made a variation on the color which fixes directly to the propeller.
I recommend a pusher configuration
Because the load on the bearings is better and the motor has a higher chance to survive if the plane crashes

English: 
The wooden lever is 20 centimeters long and directly connected with the stator.
It needs to be perfectly horizontally aligned
Finally a vertical Rod is pushing on the kitchen scales
For executing the efficiency test, I'm moving outdoors. While the motor is not yet spinning
The scale is tared with the weight of the lever and the rod.
When the motor starts its torque is countering the error seasons of the propeller that Force is measured with the scales
I'm using the same 14-inch propeller like in my earlier tests
But this time I let it spin in its designated direction this reduces the drag by 20 to 30 percent
Torque is the product of force and lever and with the current set up it is a bit more than half a Newton meter

Chinese: 
木杆长20厘米，直接与定子连接。
它需要完全水平对齐
最后一根垂直杆正在推动厨房秤
为了执行效率测试，我正在户外活动。虽然电机尚未旋转
秤的重量与杠杆和杆的重量相匹配。
当电动机启动时，其扭矩抵消了螺旋桨的误差季节，即用秤测量力
我使用的是与之前测试中相同的14英寸螺旋桨
但是这次我让它在指定的方向旋转，这减少了20％到30％的阻力
扭矩是力和杠杆的产物，当前设置的扭矩是牛顿米的一半多一点

English: 
Running at full power also the voltage and the current at the side of the battery is measured six lipo cells in series
provides 22 amps and 22 volts.
Finally, I'm measuring the rotation speed it's about
6800 RPM the Copper winding is a bit different compared to the first version it only has three turns instead of four.
But the wires are much thicker.
Overall it has 20% more copper the input power from the battery is
480 watts. the Formula for the Shaft power is basically a product between torque and rotation speed. It's around
380 watts
100 watt are lost this means 80% of the electrical input power is transformed into
Mechanical power the lost power is basically heating up the ESC and the copper wires
There were several comments if the stator would melt because it's only plastic
the integrated ventilation system cools down the stator at full power the

Chinese: 
以全功率运行还测量电池侧面的电压和电流，串联六个脂质电池
提供22安培和22伏特。
最后，我正在测量它的转速
6800转的铜绕组与第一个版本相比略有不同，它只有三匝而不是四匝。
但电线要厚得多。
总的来说，它的电池输入功率增加了20％
480瓦。轴功率公式基本上是扭矩和转速之间的乘积。它在附近
380瓦
失去100瓦这意味着80％的电输入功率被转换成
失去动力的机械动力基本上是加热ESC和铜线
如果定子会熔化，有几条评论，因为它只是塑料
集成通风系统以全功率冷却定子

English: 
temperature increases to 40 degrees Celsius with an ambient temperature at
27 degrees Celsius the motor can certainly Handle a larger propeller than used in this test. Maybe 15 or 16
Now I'm packing this 3D printed Halbach motor in the box, and I will ship it to the FliteTest guys
I love their way of experimenting with all kind of flying objects
And they make really good videos and I'm very curious what FliteTest can make with this motor

Chinese: 
温度升高到40摄氏度，环境温度为
27摄氏度电机当然可以处理比本次测试中使用的更大的螺旋桨。也许15或16
现在我将这个3D打印的Halbach电机装在盒子里，然后我将它送到FliteTest的家伙
我喜欢他们尝试各种飞行物体的方式
他们制作了非常好的视频，我很好奇FliteTest可以用这种电机做什么
