Backlash is not handled for external motion controllers.  Only the printer port.  Contact Galil for a firmware upgrade that will handle backlash and screw compensation.  (They may charge for it, as it is an option when purchasing a controller from them.) 

Steve

OK, I e-mailed my favorite Galil tech, I will see what he says. Thanks for the INFO



Aero

Well I got the e-mail back... $800 for the firmware, hope it works.


Aero

for $800 i think i might put up with a tiny backlash.