Post date: Mar 28, 2016 10:32:05 PM
I need to secure the ballscrews somehow, and that means bearings. [Un]Fortunately, the ballscrews aren't the same size as my existing leadscrews, meaning I need new bearings. And that lead to a whole new can of worms, namely "what kind of bearings?"
Long story short, it looks like they don't make spherical roller bearings small enough, so I just went with some angular contact bearings. Those seemed to be decent for both axial and radial loads, though I imagine only the former is really relevant, and only marginally at that. With the loads this thing is likely to see, I suspect regular ball bearing would have been good enough. I figured if I was going to the effort of putting ballscrews on, I might as well at least mount them with nice bearings.
(I also got some new couplers to connect the leadscrews to my steppers, but those aren't quite as exciting)