Hi An interesting discussion started in another thread (10mm Leadscrew in C-Beam Build) and I figured it would be worthwhile to break it out into a separate thread. Anyway, with a 1m lead-screw it doesn't feel great to put them in compression to eliminate backlash. Instead, putting them under tension would be better. My idea is to use cheapo thrust bearings like these (10pcs Axial Thrust Ball Bearings 8mm x 16mm x 5mm F8-16M Stainless Steel new. | eBay) in combination with a lock collar to achieve this. I want to use clamping collars like these ((4) 5/16" 2PC FULL DOUBLE SPLIT NEW SHAFT COLLAR BLACK OXIDE CLAMP SC31D SC031D | eBay) they are a lot easier to work with. I think this can be done with the extra length of screw that is shipped by default.. Barely! @Rick 2.0 suggested that I could simply push the motor coupling again the thrust bearing on the motor side. On nut to crack is how to actually generate the tension needed. I seem to remember a video about R7 CNC that used a nut to generate the tension. However, there will not be enough thread to do this with the current screw length. Any ideas?