Quote Originally Posted by Hobbit View Post
Currently building medium size wood router and will be using twin stepper motor drives on X axis, can any body give me advice on how stable this configuration will be. Effects of missed steps and any other bogies. I'm using Mach 3 and have slaved X&A axis together, I will be using the Gecko G540 drive.. Any help,advice or previous experiences will be gratefully received....
I looked at it but went for a rack and pinion instead. You could always get a larger stepper , mount it centrally and drive both ballscrews/leadscrews via belts. As far as two motors goes, If you get missed steps on either motor you will get racking, out of square cuts and increased wear as your linear bearings/ drive screws come under increasing load from not being parallel. I've chatted with a few people who started out with two steppers and quickly converted to single with twin belts.

BTW...
Am I the only person in the universe using R&P? It is so simple to set up, gives high speeds while keeping the stepper speed low and therefore high torque and no missed steps.

Regards, Jeff.

PS, any pics of your build????