Gecko's actin weird

[Smackre]

I have a 3 axis gecko's stepper controller. I believe its G201's.

Here is what its doing. Its either loseing steppers or gaining steps. I ran a program where it cut out a 1.5" circle slot and then feed down 0.01" and then did it over and over again. Ever pass ended up atiny bit to the left of the pass b4 it. But only 1 axis is doing it. and if you switch the X Y axis wires it changes to the other axis. So its not the stepper. It seems to be between the Computer and the Stepper Controller.

Any suggestions on what it could be. Could it be something simple like sertain wires in the printer cord are not good.

[CJL5585]

Originally Posted by Smackre I have a 3 axis gecko's stepper controller. I believe its G201's. Here is what its doing. Its either loseing steppers or gaining steps. I ran a program where it cut out a 1.5" circle slot and then feed down 0.01" and then did it over and over again. Ever pass ended up atiny bit to the left of the pass b4 it. But only 1 axis is doing it. and if you switch the X Y axis wires it changes to the other axis. So its not the stepper. It seems to be between the Computer and the Stepper Controller. Any suggestions on what it could be. Could it be something simple like sertain wires in the printer cord are not good.

If it moves in the proper directions when commanded to do so, then the Gecko's are doing their job.

The AMOUNT it moves, or the number of steps it takes is a function of the ballscrew, leadscrew, or threaded rod, and the values inserted in the software package you are using, and the integrity of the machine construction.

If you have leadscrews of different pitches, it could be a problem. If the values plugged into the software are not EXACTLY correct to about eight decimal places it could be causing a round off error in software. If identical steppers are not used, it could be a factor.

Check settings in software. Check for any backlash or endplay of screws during movement. Also verify that the axis move easily and are not too snug requiring additional torque on one axis. The drives only act on the information that is sent to them.

Hope this helps.