Inventables Community Forum

How tight should the Z Axis be?

I just put together the Z Axis portion of the X-Carve. I noticed that to turn the spindle at the top where the Z Axis motor will eventually have a belt is very tough. Takes a decent amount of finger strength to turn this. Do I have the nut on top of the Lead Screw too tight? I wasn’t sure how much strength the motor had to move the Z Axis up and down and want to fix this before I get everything assembled.

Thanks!

Try loosening the screws that go into the Delrin block mounting it to the router bracket.
Tightening those screws too much distorts the internal threads for the Acme screw.