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Author Topic: M6 START Help, Z going into soft limits  (Read 1069 times)

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M6 START Help, Z going into soft limits
« on: February 12, 2018, 03:30:55 PM »
I have an M6 Start manual tool change script.  It works but the only problem is when I goto select OK the X and Y start to move in the right direction but the Z goes up and hits my soft limit setting.  Could anyone give me an idea of what might be wrong and why the Z does not go back to the original place at the start of the tool change?

Thanks!

Offline Davek0974

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Re: M6 START Help, Z going into soft limits
« Reply #1 on: February 12, 2018, 03:55:21 PM »
Check what value you have in your tool change position for Z axis and then check where your z soft limit is.

Do soft limits work properly in manual moves??
Bridgeport Mill, Mach3 V062, CSMIO-IP/A controller, AC Servo Drives
Re: M6 START Help, Z going into soft limits
« Reply #2 on: February 12, 2018, 04:40:45 PM »
Dave soft limits work in manual moves.  The Z DRO 1202 is -.5     The Z when homes is top of column, homes then trips the Z limit switch then backs off -.25 from home.  The Z Min in home and limits is 0.00, the Z max is -9.0.  The -9.0 is the max Z travel to about an 1" off the table.  For goodness sake I cannot figure out why this is happening.  Oh and a little tid bit, my M6End macro is shut off, in other words I have an ' in front of all words so its not coded.
Re: M6 START Help, Z going into soft limits
« Reply #3 on: February 12, 2018, 04:43:18 PM »
Oh and another thing, the tool offsets are all in my mach tool library.  I measured them all with the Tormach height gage as all my tools are in TTS holders, even my digital probe.

Offline Davek0974

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Re: M6 START Help, Z going into soft limits
« Reply #4 on: February 12, 2018, 04:51:19 PM »
The macro is using G53 so tool offsets are not relevant.

I'm assuming you are in inches?

Try for an experiment move your Z axis Tool change position to say Z0.25

Now try MDI  G53 G0 Z0.25 - does it hit soft limit?

If no then try a M6 tool change and see what happens.

I'm just wondering if its not happy going Z0 with soft limit at Z0 as well.


Also, is this new behaviour - new macro etc??
« Last Edit: February 12, 2018, 04:55:01 PM by Davek0974 »
Bridgeport Mill, Mach3 V062, CSMIO-IP/A controller, AC Servo Drives
Re: M6 START Help, Z going into soft limits
« Reply #5 on: February 12, 2018, 04:55:39 PM »
Dave I will give that a shot in a couple of minutes and see what I come up with and message right back.  I think we may be on the right track.
Re: M6 START Help, Z going into soft limits
« Reply #6 on: February 12, 2018, 05:08:32 PM »
Dave I did the G53 G0 Z0.25 and it hit the soft limit right out of the shoot!
Re: M6 START Help, Z going into soft limits
« Reply #7 on: February 12, 2018, 05:15:29 PM »
ok its not saying that it is hitting the soft limits but the axis stops and the message box comes up and says to click OK for the tool change.
Re: M6 START Help, Z going into soft limits
« Reply #8 on: February 12, 2018, 05:22:25 PM »
new marco as well

Offline Davek0974

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Re: M6 START Help, Z going into soft limits
« Reply #9 on: February 13, 2018, 02:23:59 AM »
Try it in the MDI box - just drop the Z axis to maybe 2", then type G53 G0 Z0 in the MDI and hit enter

All that should happen is the Z axis zips back up to home, no messages etc.
Bridgeport Mill, Mach3 V062, CSMIO-IP/A controller, AC Servo Drives