Originally Posted by
RPCElectronics
Hey, I know this is old, but I have one more question. When I bought my Gecko 540 driver, I also picked up three of the 280oz NMEA 23 steppers. I am hoping one will be enough for the Z, but I noticed you picked up a 380oz stepper. What is the current rating on that 380oz? I am holding off buying anything bigger because the G540 claims to be good only for 3.5A per axis. All of the 380 and up steppers claim to need at least a couple more amps of current and I don't want to risk burning out a channel on the G540.
Did you end up buying a different driver for the Z axis?
Thanks!
I run 270oz-in steppers on all three axis of my X2. They have no problems drilling mild steel and I have never stalled the Z axis.
Basically I can't see why people are installing 380's, there is no need. You get around 250kg of stall force with 270's.
My X2 CNC Brain Build: http://www.cnczone.com/forums/showthread.php?t=61345
Gecko G250 wiring errors: http://www.cnczone.com/forums/showthread.php?t=68960