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« on: September 06, 2019, 04:15:26 PM »
Newbie, Chinese router 6040, Purchased Mach3 licence John Murray
I run the following code and it is fine.
(Go to middle of table, touch down, stop);
G90 G21 G54 G80;
G00 X200.0 Y200.0 ;
G00 Z-20.0;
M30;
With the tip at this point, I turn off machine coordinates, zero the work coordinates
Now, I move the tip to some other place using the pendant, then I run:
(Return to zero);
G00 X0.0 Y0.0;
G00 Z0;
G30;
This works just fine, the tip goes right back to zero on all axes every time.
However, if instead of running that last piece of code, I press
the Go To Zero button, the spindle immediately climbs to the top
of the Z axis and trips the limit switch. The machine is now locked, and the only way to get back control is to wind the Z axis off the limit switch by hand.
Can you suggest a reason why this might be? Could I have a setting wrong in the configuration?
Best regards
John Murray
jramurray@gmail.com
07599 800033