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Author Topic: Controlling THC?  (Read 16569 times)

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Offline Davek0974

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Re: Controlling THC?
« Reply #30 on: September 06, 2014, 08:02:45 AM »
There are two codes to turn THC off in mach3, they are listed in one of my other threads about THC control.

To use them I had to create custom macros, I think I used M10 and M11, trouble is my machine is at work and I can't remember what was in them but it is listed somewhere here in one of my threads. I think M10/11 did not cause a delay or glitch in mach movement.

To use the macros I created two code snippets in sheetcam one off and one on, these were then called from various cut rules.

It all worked well but the new system has made much of it pointless as it is completely different and has it's own on/off codes.

I will see if I can find the codes...
Bridgeport Mill, Mach3 V062, CSMIO-IP/A controller, AC Servo Drives

Offline Davek0974

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Re: Controlling THC?
« Reply #31 on: September 06, 2014, 08:48:35 AM »
It's  the start of this thread that we are in now!

It was M101/102 not M10/11
« Last Edit: September 06, 2014, 08:50:46 AM by Davek0974 »
Bridgeport Mill, Mach3 V062, CSMIO-IP/A controller, AC Servo Drives

Offline Val

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Re: Controlling THC?
« Reply #32 on: September 06, 2014, 09:27:59 AM »
There are two codes to turn THC off in mach3, they are listed in one of my other threads about THC control.

To use them I had to create custom macros, I think I used M10 and M11, trouble is my machine is at work and I can't remember what was in them but it is listed somewhere here in one of my threads.


I will see if I can find the codes...

Thank you so much. You explained it very nicely. The only thing now is the macros.  I tried with M101/102 but without the macros all they do is to pause the machine for a fraction of a sec.  If you could find those macros and explain what to do with them so that the M codes call them, it would be great.

Offline Davek0974

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Re: Controlling THC?
« Reply #33 on: September 06, 2014, 09:49:13 AM »
All that is in M101 is EndTHC()
M102 has StartTHC() in it.

The rest is down to using sheet cams cutting rules to call those macros.
Bridgeport Mill, Mach3 V062, CSMIO-IP/A controller, AC Servo Drives

Offline Val

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Re: Controlling THC?
« Reply #34 on: September 09, 2014, 10:49:16 AM »
All that is in M101 is EndTHC()
M102 has StartTHC() in it.

The rest is down to using sheet cams cutting rules to call those macros.

thank you. you're a life saver.
Re: Controlling THC?
« Reply #35 on: September 19, 2014, 04:03:20 PM »
not the same topic exactly,, but is there a screen , or a way to add z axis (torch height control) speed % up and down buttons to the screen as opposed to having to go into the xml file to change it ... I get the z thc speed set to where it isn't pogo ing up and down and then after changing materials thicknesses and speed rate  it's moving too slow to avoid collision.. just wish there was a simple speed % up/down button on the screen instead of having to modify the xml file.

Offline Davek0974

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Re: Controlling THC?
« Reply #36 on: September 22, 2014, 02:03:30 AM »
You could try a different screen set, on my last one the THC rate was on the main screen.
Bridgeport Mill, Mach3 V062, CSMIO-IP/A controller, AC Servo Drives
THC Speed setting below 5%
« Reply #37 on: May 09, 2016, 11:20:57 AM »
I need to set the "THC Speed" on the Plasma screen set to 0.5%.  If I change in in the Plasma XML, it will be what I entered when Mach3 first opens.  But if I try to change it on screen, it revert to a min speed of 5 or greater.  Somewhere the screen set is prevented from going lower than 5%.
Re: Controlling THC?
« Reply #38 on: May 09, 2016, 02:17:55 PM »
It is inbuilt within Mach.

The way to do this is to lower your z axis rapid speed setting in in/min or mm/min under the motor tuning setting.

Rob
Rob

Albert Einstein ― “If you can't explain it to a six year old, you don't understand it yourself.”

Offline Davek0974

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Re: Controlling THC?
« Reply #39 on: May 09, 2016, 02:27:27 PM »
What Rob said.

I tried it with insane Z speeds, makes little difference on my setup, so backed it off to around 1700mm/min i think my THC rate is around 20%
Bridgeport Mill, Mach3 V062, CSMIO-IP/A controller, AC Servo Drives