Hi,
“OK set velocity to 30 and acceleration to 5 and try again.”
I did the suggested resets and there is still a problem.
“You still have not told us your driver, power supply and break out board setup.”
The control box and power supply came with the Zenbot.
“Explain how you are measuring the 1.5 thou discrepancy?”
Method for measurement:
1. I secure a heavy metal plate to the tooling bed.
2. Attach dial indicator with magnetic base to plate.
3. Home all axis and zero display.
4. jog to dial indicator G0 X2,Y2,Z-2 and zero the indicator
5. Home axis G28
6. Jog back to dial indicator G0 X2,Y2,Z-2
7. This is where dial indicator starts showing the accumulating positive shift of +0.0015
8 repeat steps 5 and 6 the error increases a constant +0.0015 after each repeat and the error does not show up on the DRO’s
If I use the same method but replace G28 with G28.1 X-0.0015 Y-0.0015 Z0.0015 then no error occurs.
I did notice that when I use G28.1 the DRO’s do not reset to zero but reset to + or - 0.0009. They should reset to zero after a G28.1 command. That is why I had to reset the DRO’s to zero so many times within the macro.
“Post your XML.”
I posted the XML and I am continuing to review the config Mach3 pdf . Thanks again for efforts and best regards.
Guest
