Instead of producing and assembling parts to build a device, 3D printing allows ‘one-build fabrication’ such as printing interlocking gears in one go saving time and costs. An assembly which comprises of multiple parts can be fabricated in one build, eliminating fasteners and more complicated assembly labour. More importantly, when the parts that go into that assembly are no longer needed, the costs of designing, fabricating, inspecting, documenting, and certifying them are also eliminated.
negative towards particular countries