For the z axis, 2mm pitch 4 start gives a lead of 8mm/rev. That's your $100 and $101 value (and the reason I'll never use GT3 belt, computers don't like odd numbers and recurring decimals- should be GT2.5 or GT4). ![]() ![]() With 20mm pulleys, you have 60mm of linear movement per rev, which, divided by 200 steps is 0.3mm/step. The NEMA 23 motors are 1.8 degree step angle, so 200 steps per revolution. how many steps does it take to travel 1mm?) This needs calculating, as the Github documentation suggests. You really need to go through every one of those values and make sure it's correct for your machine.
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