evildmp / BrachioGraph

BrachioGraph is an ultra-cheap (total cost of materials: €14) plotter that can be built with minimal skills.
https://www.brachiograph.art
MIT License
680 stars 114 forks source link

How to modify code and/or hardware to control stepper motors? #64

Open fpiantedosi opened 4 years ago

fpiantedosi commented 4 years ago

Hi, I would use brachiograph code to control this SCARA robot; gemoetry seems to be applicable, but in the original project, designer used two 42 stepper motors (nema 17) and a servo for per holder.

This kind of setup will affect cost of plotter, and for sure maybe the usage of a CNC shield ot other to be connected to PI.

Can someone address me to portion of code to change in order to control two stepper motors and a servo instead of 3 servos?

Thank you! Francesco