[gabalaz]

Can anyone advise me if there would be any issues with slaving two Nema 34 motors to drive two RM2005 ballscrews. This would be to drive a gantry on a router that will mainly be used for woodworking and plastics (X and Y will be 1.5 by 1.2 meters). I believe it has been mentioned on here that a timing belt can be used between stepper motors that could act as a backup should there be a power failure on one of the slaved axis. This is to prevent damage occurring in the event of one stepper / ballscrew stopping while the other side continues to move. I anticipate that I will need dual shaft Nema's to mount the timing belt pulleys onto. Does anyone have any experience of such a set up and is it worthwhile doing?
Regards
Chris

[ger21]

No, there are thousands of machines that used slaved axis. If you are concerned, use drives with Fault detection and alarm signals, like Leadshines, which can stop the machine if a stepper stalls.

You do NOT want to use 2005 ballscrews. They'll be far too slow. You want a 10mm pitch or larger, so 2010 or 2020.

[gabalaz]

Thanks Gerry, Its to late regarding the ballscrews I already bought 2005 ones. Il probably use them just to get the machine moving and buy 2010 or 2020 at a later date. Regarding the Leadshines I'm guessing the fault detection monitors for voltage changes should one stepper malfunction and the other labours to keep on moving.