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3 questions
3
votes
0
answers
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CNC stepper motors are loud and slow after decreasing the steps/mm from 250 to 5
I'm making a drawing robot and have hooked up my steppers to each axis. I'm using the grbl shield with arduino and nema 17 steppers.
Initially the firmware was set at 250 steps/mm but with my setup ...
2
votes
1
answer
172
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Current-limiting stepper motors for RepRap
I have been working on a robot project for a while. Now I am tired of finding parts that just does the job, so it is time to do create parts.
A 3D printer will do the trick for many parts, but 3D ...
9
votes
2
answers
21k
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How to tell a stepper motor's position, or detect slippage
I am creating a CNC machine on a budget, using old motors out of printers/scanners/etc.
I am limited to about 650mA for the whole system, so my fear is that when the cutting bit touches the material,...