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Topics - brebisson

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1
Mach4 General Discussion / use of 4th axis
« on: September 24, 2019, 07:23:00 AM »
Hello,

I have a 4 axis machine with axis 4 (A) on a turn chuck.

I wanted to understand better how mach4 handled requests to turn?
1) on a rotation table, there is 2 ways to get to a given angle, clock wise and counter clock wise. How does mach4 determine which way to go?
2) let us say that A=0°, how do I tell mach4 to do a full turn (+360°)? doing a G01 A360 does nothing as mach4 seems to just stay in place.

Thanks

2
Mach4 General Discussion / questions on G61 and G64 and mach4 crash
« on: September 24, 2019, 07:20:31 AM »
Hello,

I modified a Gcode file to add a G61 at the begining of a "path", and tried to turn off exact stop by a G64 at the end of said path...

However, it did not seem to work. mach4 either crashed, or generated an error when loading this file.

removing the G64 "solved" the crash, but of course did not do what I wanted

So, I have a couple of quesions...
I am correct in my understanding that G64 "cancels" a G61? if not, what is the proper Gcode to do so?
Do you have any idea why G64 caused mach4 to crash?

Cyrille

3
Mach4 General Discussion / XHC motion card and Mach4
« on: May 13, 2019, 02:34:46 AM »
Hello,

Is anyone using a XHC motion card with Mach4?

I recently purchased a machine using one of these cards, but I am having some difficulties.

Basic functions: execute G code, jog and homing seems to work.

However a number of other things do not seem to work:
- Probing (The probe IS detected as on/off by Mach4, but I can not do a "probe" to set my z0)
- I get some rounding of corners happening

Has anyone experienced similar issues and have you been able to fix them?

Thanks,
Cyrille

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