Originally Posted by
Gene Pavlovsky
Good points, Andrey. I will keep this in mind with regards to screw installation.
As for the linear bearing, I wonder if anyone had done any mechanical analysis of this solution. It seems to me that someone just had an idea to try it (because it kinda made sense to them), posted about it on the internet (and mentioned that it worked well for them), and then naturally a bunch of people repeated that (with many saying it didn't work well for them). Considering that the leg vise can develop a lot of force, any bending of the shaft and play in the linear bearing will result in the chop's bottom moving inside more than desired. So to me it seems that to counteract that (and to provide some amount of toe-in), the linear bearing and it's shaft shouldn't be installed exactly parallel, the shaft's far end should be slightly angled towards the floor. But which angle to use is a question, and once the angle is chosen, it would be difficult to adjust it later.