> > But to me the whole idea breaks down when using a Closed Loop Stepper or > a > > Servo. > > At least unless you feed the encoders into LinuxCNC it seems to heavily > > weaken the idea. > > Yes, that's the whole idea! The encoder is read by > LinuxCNC, PID processes the difference between commanded and > actual position, and sends out commands to the motor drive > to minimize error. LinuxCNC originally came from the servo > world, and various stepper "back ends" were later applied. >
You make it sound so common :) Are there boards where you can just connect the 4 encoder pins and turn that into two signals to read by LinuxCNC? (as Gene suggested) And let's say the closed loop driver tries to fix the difference between commanded and actual position - you would still also feed the encoders through to LinuxCNC? Couldn't the two loops cause problems? cheers, Torsten _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
