I have some issues regarding a lead screw.
It's used as the main driving system for a scissor lift which requires about 2Nm torque to operate.
This is the exact part if it matters:
due to space constraints in the design I have to use a universal joint and place the motor at a very slight angle to clear a few things:
Regardless of how much I tighten the grub screws, they will eventually come loose (only on the lead screw end, not the motor end) and slide over the the lead screw. I've tightened them so much that even one of them became stripped and I had to replace it.
I have a bottle of medium strength loctite, does using that for the grub screws solve the issue or are there better ways of doing it?
Another idea was using a file to make a flat spot on the lead screw but I'm not sure how well that'd work or if it makes things worse. Since I only have 1 lead screw, I thought it'd be best to ask before destroying it.