It is amazing enough, at least to me, that one can print a 3D model out of a low cost printer.
That amazement reaches a new level when one can print a model with moveable parts, all done by the printer itself.
No separate parts, no need to glue the parts together.
Cute mini Octopus, articulated and printed without supports. It's designed so it can be printed at once. No assembly or supports required. 4 different STL files available: Octopus_v5.5.stl: No support added (use your own, just for the mouth). Octopus_v5.5_support.stl: Support added for the...
There's a bearing as well but a bit of a torture/tolerance test:
The trouble with 3D printing a ball bearing is that spheres don't adhere to the 45 degree rule, so they tend to print poorly, or if metal balls are used instead, then the bearing requires assembly. This is a new kind of bearing that can only be manufactured by 3D printing and comes preassembled...