Re: DIY Mill Turn Center
Posted: Wed Nov 22, 2017 1:40 am
3 posts in a row!
I'm nearly done with the machine, still a few things to go before it works though. Here's a video I just took of the boxway linear motion. One of the main arguments for using recirculating linear ball guides instead of sliding boxways is that boxways supposedly have stick-slip, where they cannot position smoothly at a microscopic level. Looks like my boxway design, for whatever reasons, does not suffer from this.
Each tick mark is 0.001 inch. It seems like the mechanical system here is nearly flawless. Backlash without the nut being preloaded is 0.0008", with preload it's less than 0.0002".
https://www.youtube.com/watch?v=tRnuS2u ... e=youtu.be
I'm nearly done with the machine, still a few things to go before it works though. Here's a video I just took of the boxway linear motion. One of the main arguments for using recirculating linear ball guides instead of sliding boxways is that boxways supposedly have stick-slip, where they cannot position smoothly at a microscopic level. Looks like my boxway design, for whatever reasons, does not suffer from this.
Each tick mark is 0.001 inch. It seems like the mechanical system here is nearly flawless. Backlash without the nut being preloaded is 0.0008", with preload it's less than 0.0002".
https://www.youtube.com/watch?v=tRnuS2u ... e=youtu.be