3 ms·
I think he printed an undersized hole, drilled it to the right diameter and then used a tap to thread it.
by donquichotte 9y ago
I think he printed an undersized hole, drilled it to the right diameter and then used a tap to thread it.
- Animats 9y agoLook at him screwing on the end bell of the motor at 222 seconds in. [1] That's a big diameter thread, and the close-ups of it show a very clean thread. You can see the marks of the 3D printing layers on the outer motor casing, but not on the thread. I suspect that thread was turned on a lathe. [1] https://youtu.be/NFvMC3l3fGY?t=222 https://youtu.be/NFvMC3l3fGY?t=222
- Aser 9y agoI've printed finer threads on my cheap 3D printer, although it took a few tries to get them the right size. It's possible that he used acetone vapour to smooth out the surface of the threads.
- viggity 9y agothat would be a huge tap. the motor looks to be about 4-5" wide. you'd need a $500+ tap for that, no?
- HeyLaughingBoy 9y agoProbably not tapped, but single-pointed on a lathe or thread milled: https://en.wikipedia.org/wiki/Threading_(manufacturing)#Single-point_threading https://en.wikipedia.org/wiki/Threading_(manufacturing)#Sing...