Inspired by a MIG welder YouTube video, I built the following stepper motor controlled paint pen marker. Could also be used a Sharpy marker instead.

Here is the board design at OSH Park:
https://oshpark.com/shared_projects/MFHba3kD


Inspired by a MIG welder YouTube video, I built the following stepper motor controlled paint pen marker. Could also be used a Sharpy marker instead.
Here is the board design at OSH Park:
https://oshpark.com/shared_projects/MFHba3kD