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Author Topic: Router with Dual Motor on X Axis  (Read 224 times)

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Router with Dual Motor on X Axis
« on: December 30, 2019, 09:48:40 PM »
I have a router that came with a cheap Chinese CNC controller. I have replaced it with Mach 4 and DSPMC controller. Router has Yaskawa drive SGDV-7R6A01A. One motor is setup as Master the other is slave. The issue that has come up Gin is that the slave does not always follow the master and a times will jump in mechanical position 3-10mm over time the bridge will twist out of square 3-4mm over the distance of the Y axis.
This is most evident when running a job using G54 and then at the end switching to G90 move, where you see one axis jump with the other motionless. I have successfully done electronic gearing of servos on other equipment but not on a CNC of this type.  Any suggestions would be helpful.
Re: Router with Dual Motor on X Axis
« Reply #1 on: December 31, 2019, 01:13:57 AM »
do you mean the machine not cut diagonal?
if so its not controller problem i think its noise problem
be sure shield of the servo connect directly to ground(not only 4th wire as chines do)
we even not use the gantry as master slave  ,can connect them together just one motor need change direction on servo pack