Re: DIY- CNC Embroidery Machine
Hi guys,The video shows how a low cost brushed DC motor can be converted into closed loop servo system. I 3d printed out a simple encoder wheel with very less resolution 16PPR (Pulse Per Revolution) in quadrature mode. Used two optocoupler with LM393 comparators for the two channels. This motor can take steps in 22.5 degree. This whole project took many months in bits and pieces to reach at this point. The video shows the tuning process for individual PID (Proportional Integral Derivative) values.
Overall it was a fun project to understand how closed loop expensive servos work.
http://free3dscans.blogspot.com/ http://my-woodcarving.blogspot.com/
http://my-diysolarwind.blogspot.com/