Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: seisops on April 12, 2006, 09:25:33 AM
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Having read the Mach2/3 manuals, I've tried to test how Tangential control works. I actually need to cut a square surface with a blade on axis A, controlled by a stepper.
If i understood well, I'm supposed to set axis A as angular and tune this motor so that in a full rev. the DRO should show 360. Also, activate the tang. control, set the angle limit above which, axis Z is lifted and the actual height that Z will be lifted.
When try to run a simple square cutting routine with G1 moves (using only X, Y and Z values), axis Z is indeed lifted in every direction change, but axis A does not turn to face the new direction, it only turns a little (around 2-3 degrees, DRO also shows the same).
What am i missing here? Please, let me know if i have omitted anything (configuration settings: state, motor tuning, logic e.t.c.) and also show me an example routine that really works.
Thank you in advance.
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Hi,
If you want to cut a slot from point X0 A0 to X50 A90 then the code would be.
G00 G90 X0 Y0 Z25. A0 (MOVE TO START POINT)
Z1. (RAPID TO 1MM ABOVE WORK)
G01 Z-1. F50. (FEED 1MM INTO WORK)
X50. A90. (FEED 50MM IN X AND ROTATE 90 DEGREES AT THE SAME TIME)
G00 Z25. (RAPID AWAY FROM WORK)
M30 (END PROGRAM)
Graham.
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It may be late, but it is better than nothing.... Thanks for your advice. :D
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Did you ever figure this out?
I have a tangential axis and it wants to move within 1 degree as it goes around a circle or square - shoud be 360 degrees.