I am new to this fantastic world and I‘ve started a project to build a machine that draws pictures (sounds cool, right? :)). To break it down to what is of interest:
3x stepper motors: bipolar, 1.8 degrees per step, 1.5A, 3.8V)
1x Arduino Uno
1x CNC Shield V3
3x DRV8825 with 3 Jumpers each
3x potentiometer (10 kOhm)
All 3 engines run at the same time with a constant speed depending on their own potentiometer. The speed is adjustable at any time for each motor separately. Minimum speed is 0rpm, maximum is something around 60rpm.
I have tried various pieces of code I’ve found and to adjust those to my needs. Generally, I tried the AccelStepper as well as the Stepper library. It’s hard to describe the outcome as nothing really seemed logical.
To start with (hopefully) easy questions:
-Is it even possible to realize what I want with the hardware I have?
-Is there any similar use case you know of, ideally with a piece of code to share.
I am happy to share more information if needed.
Thanks in advance,