I’m building the first axis of Thor, and I am facing a problem with it. Although the big bearing turns smoothly, when I place the set BaseTop + bearing + Art1Top on top of BaseBot, it moves with some effort, causing the motor to lose about 50% of steps. At this moment I do not have the Thor electronic board and am testing with an Arduino Mega + RAMPS, but I think the small motor at axis 1 is not strong enough.Do you have any suggestion?
As the gears are printed, they could have some tolerances (it depends on each printer). If you see that the connection between gears is very tight and they not mesh well, maybe the module of one of the gears needs to be tunned.
To do this, just open the Art1GearMotor.FCStd file with FreeCAD, navigate to the Involute Gear object and change the module value, then select the Art1GearMotor object, export it to STL and print it. I would recommend you to start reducing it by 0.1mm.