New Project with Mesa 7I96 and THCAD-05

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21 May 2021 19:37 #209785 by rodw

I think Plasmac already has some facility for adding debounce to the arc-OK signal
I would try that route first. Basically debounce is always needed on 7I96 input for signals
from mechanical contacts, since the 7I96 isolated inputs are quite fast (50 usec or so
response time)


Hes, its discussed in the manual here
linuxcnc.org/docs/devel/html/plasma/qtpl...ml#_contact_debounce

You can edit the values in one of the hal files.

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21 May 2021 19:41 #209786 by rodw

I am using the same plasma machine I have on my other table that’s running linuxcnc but with a proma that I get raw voltage and the prime has the arc signal that I send to the Chinese breakout board input. No issues there what do I need to enter on my config for the debounce on input 10?


Its done for you. Just edit the settings
linuxcnc.org/docs/devel/html/plasma/qtpl...ml#_contact_debounce

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21 May 2021 20:11 #209796 by TexasCNC
What about the touch off how can I get the value back to default? I didn’t enter the measurement correctly and now every time I boot up the GUI the offset is already there on the DRO screen even when I home the Z it doesn’t go to 0. Trying to find the value to set it back to 0.

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21 May 2021 23:13 - 21 May 2021 23:58 #209809 by phillc54
Follow the first four steps here:

linuxcnc.org/docs/devel/html/plasma/qtpl...tml#qt_initial-setup

Actually ypu shouldn't need to do step #4 nowdays...
Last edit: 21 May 2021 23:58 by phillc54.

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22 May 2021 02:23 #209819 by TexasCNC
I tried doing that but when I hit zero the Z axis it’s doesn’t set the value to zero.

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22 May 2021 02:25 #209820 by phillc54
QtPlasmaC or PlasmaC?

If PlasmaC what GUI and what LinuxCNC version.

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22 May 2021 03:47 #209821 by TexasCNC
PlasmaC 2.9

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23 May 2021 00:12 #209865 by phillc54
It does work here:

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23 May 2021 18:41 - 23 May 2021 18:42 #209938 by TexasCNC
Let me try that but how did you get a home all button I have to home each axis individually at a time?
Last edit: 23 May 2021 18:42 by TexasCNC.

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23 May 2021 19:57 #209948 by TexasCNC
Well it wouldn’t work the way you have on your GUI so I just deleted the config and started again. And think it work now not sure yet once I home all axis and move the torch around then I try to home again all axis they don’t set to zero is there something different I need to do. This stuff just leads one thing to another and another. I followed the steps over and over again something new just keeps popping up that’s not working right I am still having issues with the arc ok led on the bottom of the GUI keep blinking every time I ground my lead to table from plasma and it was doing it with nothing hooked up to table when I was doing the probe test and float switch activated and the arc ok light kept going on and off.

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