Trying to upgrade this 3040 router with a higher torque BLDC spindle for cutting steel. Besides having a higher 1.3 Nm torque vs 0.3 Nm for the stock spindle, more importantly, the full torque is available at 0 speed unlike induction motors. I made a plate with a bunch of screw holes to allow height adjustment, but even so, it's now a lot harder to adjust the height because I have to (un)screw 4 bolts, instead of just (un)tightening 2 bolts and sliding a cylindrical spindle in its collar. Also, it will cause the aluminum threads to wear out quicker.

What can I do? I was thinking something like a plate that slides on rails. Or would it be better to adjust the gantry height https://www.cnczone.com/forums/comme...ry-height.html or just raise the work?