Hello Everyone,
I have made a gantry mill which has one motor running both ends of the Y axis; the motor sits mid way between the Y axis rails (1.5m apart) then it has 2x45' cogs to transferring the rotary motion to the worm Y axis. The problem is the back lash leaves me with flats on the top or bottom of any circles ect. I could use the compensation setting to over come some of it but would prefer to reduce it by better engineering (I am a stonemason, so its a miracle it works as well as it does). So I was wandering about the possibility of using two stepper motors one at either end of the Y axis, and if this is a good option how would I do it?