I’m currently at the last steps of the MPCNC Primo and assembling the Z-axis. But my bearings feel awful, do they have too much tension? Also, my Z axis doesn’t move freely, it is somewhat easy to push downwards but it’s extremely hard to move it upwards.
I almost cannot move upwards by hand, I haven’t wired it yet. Does it supposed to be like that? Can anyone share what does it look and feel like when correctly assembled?
Upward needs turning of the screws. Down is like a fat kid on a seesaw. 