Hi all
I am designing a kind of cnc mill and have a question regarding the mounting of the ball screws. I read already a lot of it on this forum and some other, but couldn't find an answer for my question. In general you have four mounting options for a ball screw: fixed-loose / simple-simple / fixed -simple / fixed-fixed.
The problem with the simple mounting is that it gives you less axial rigidity. The problem with the fixed-fixed mounting is that it is very difficult to assemble yourself.
What would happen if you would use the fixed type bearings but without fixing them? More specific: Assemble them like you would with the simple bearings. The fixed type bearings would give you a better axial rigidity, but the fact that they still can move along the axis (like the simple bearings) would make them a lot easier to assemble.
English isn't my mothertongue, so excuse me in advance for the abuse of your language...
Pieter