Torch delay / torch height?

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18 May 2022 21:39 - 18 May 2022 21:57 #243298 by motal2004
Hello People. 
I have two issues first; I have my 4'x4' CNC table using a Primeweld plasma machine along with a machine torch. I used sheetcam for my post-processor. My issue is when I start a cut job my machine starts to run before the torch fires up. quick on my feet i came up with a temporary workaround for me to finish up my job.  I increase the lead-in for my outside cuts, but this still is causing an issue with cutting holes. Can someone point me in the right direction?  I'm sure it's something small that I am missing. 
My second issue is torch height. I was running the "CNC preferred shielded consumables" see attached image,  on my table but I not getting as much of a straight cut as you can with plasma cutting. from the machine instructions and linuxcnc, it is telling me to lower my cut heigh, but I can't lower it anymore, physics is preventing that from happing, torch tip hits material I switch to unshielded consumables and raised my cut height as best I can to not hit the material. it cuts almost perfectly, with a couple more minor tweaks I will get there, my question is keep using unshielded, it's not going to hurt anything, is it?  
thanks again for your help. 
 shield consumables on the right / unshielded on the left 

 
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Last edit: 18 May 2022 21:57 by motal2004.

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19 May 2022 02:37 #243310 by rodw
Replied by rodw on topic Torch delay / torch height?
sounds like you are using the wrong post processor.

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19 May 2022 08:24 #243322 by tommylight

My issue is when I start a cut job my machine starts to run before the torch fires up.
 

What mode?
How is the ARCOK wired, if?
What are the settings used?
What THC?
What version of Linux?
What version of LinuxCNC?
Screenshots of "run" and "config" tabs?
Use the "backup" function and upload here on this forum the created file.

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19 May 2022 13:24 #243340 by motal2004
here is a screenshot of the machine options
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19 May 2022 18:56 #243358 by motal2004
I will upload the backup and the info in about 6 hours. thank you Tommylight

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19 May 2022 23:34 #243369 by motal2004
What mode? mode 1
How is the ARCOK wired, if? net plasmac:arc-ok-in hm2_7i96.0.gpio.038.in_not => db_arc-ok.in
What are the settings used More specific ?????

What THC?  using the MESA THCAD-10
What version of Linux? Debian GNU/Linux (10) (buster)
What version of LinuxCNC? Linux M6 4.19.0-20-rt-amd64 #1 SMP PREEMPT RT Debian 4.19.235-1 (2022-03-17) x86_64 GNU/Linux



Screenshots of "run" and "config" tabs? see attched

#***** PLASMA CONNECTIONS *****
net plasmac:arc-voltage-in hm2_7i96.0.encoder.00.velocity => plasmac.arc-voltage-in
net plasmac:arc-ok-in hm2_7i96.0.gpio.038.in_not => db_arc-ok.in
net plasmac:float-switch hm2_7i96.0.gpio.050.in => db_float.in
# net plasmac:breakaway {YOUR BREAKAWAY PIN} => db_breakaway.in
# net plasmac:ohmic-probe {YOUR OHMIC PROBE PIN} => db_ohmic.in
# net plasmac:ohmic-enable plasmac.ohmic-enable  => {YOUR OHMIC ENABLE PIN}
net plasmac:torch-on => hm2_7i96.0.ssr.00.out-05 hm2_7i96.0.gpio.039.out
hm2_7i96.0.ssr.00.out-05

***** THC  *****
setp hm2_7i96.0.encoder.00.scale -1
setp hm2_7i96.0.encoder.00.filter 1
setp hm2_7i96.0.encoder.00.counter-mode 1
Use the "backup" function and upload here on this forum the created file. see att
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