No success obtaining value of encoder from THCAD-10
23 Nov 2022 19:50 #257503
by santy
No success obtaining value of encoder from THCAD-10 was created by santy
Hi everyone.
Im using PlasmaC and a Mesa 7i96s board to control a plasma machine, with type 1 THC Configuration (voltage for Arc Ok and Thc signals).
I manage to move all axis, probe, and activate the arc, but the THC has an issue.
My voltage divider has a built in relay for triggering the plasma, so i'm using that. It outputs a 1:50 voltage division, but i am not obtaining any values in the encoder value. What could be wrong?
Also, im using sheetcam Plasmac post processor, and the "probe sequence" is performing 2 probes for each pierce. is this normal? can i reduce the number to just 1 probe?
Thank you!
Im using PlasmaC and a Mesa 7i96s board to control a plasma machine, with type 1 THC Configuration (voltage for Arc Ok and Thc signals).
I manage to move all axis, probe, and activate the arc, but the THC has an issue.
My voltage divider has a built in relay for triggering the plasma, so i'm using that. It outputs a 1:50 voltage division, but i am not obtaining any values in the encoder value. What could be wrong?
Also, im using sheetcam Plasmac post processor, and the "probe sequence" is performing 2 probes for each pierce. is this normal? can i reduce the number to just 1 probe?
Thank you!
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23 Nov 2022 19:56 #257504
by santy
Replied by santy on topic No success obtaining value of encoder from THCAD-10
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23 Nov 2022 21:28 #257514
by PCW
Replied by PCW on topic No success obtaining value of encoder from THCAD-10
Can you see a change in the THCAD blink rate with plasma voltage
on/off?
Have you tried the F/32 THCAD option
(you will not be able to read full scale input with default
encoder settings and the THCAD set for DIV1)
on/off?
Have you tried the F/32 THCAD option
(you will not be able to read full scale input with default
encoder settings and the THCAD set for DIV1)
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23 Nov 2022 23:11 #257525
by santy
Replied by santy on topic No success obtaining value of encoder from THCAD-10
ok im going to try this now.ill change the switch to f/32 and do a test with 100mm line and update it soon.
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23 Nov 2022 23:16 #257526
by rodw
Replied by rodw on topic No success obtaining value of encoder from THCAD-10
If you look at the encoder velocity in halshow and its not bouncing arround near 3800 (eg its static), there are some settings missing in your hal file. I think they are covered in the Plasmac docs.
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23 Nov 2022 23:33 #257528
by phillc54
Replied by phillc54 on topic No success obtaining value of encoder from THCAD-10
You will get two probes if the probe height is below the top of the material.Also, im using sheetcam Plasmac post processor, and the "probe sequence" is performing 2 probes for each pierce. is this normal? can i reduce the number to just 1 probe?
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24 Nov 2022 18:00 #257567
by santy
Replied by santy on topic No success obtaining value of encoder from THCAD-10
i believe i might be missing the frequencies and some other values which are asked by a prompt in QtPlasmaC. But im using PlasmaC only, which only asks for the voltage encoder port.
i wouldn't know how to change these values in the hal file directly, so i am trying to switch to qtplasmac (which seems to have an even better user interface)
Tried running " qtplasmac-plasmac2qt " in a terminal to switch from plasmac to qtplasmac but the command didnt work.
i wouldn't know how to change these values in the hal file directly, so i am trying to switch to qtplasmac (which seems to have an even better user interface)
Tried running " qtplasmac-plasmac2qt " in a terminal to switch from plasmac to qtplasmac but the command didnt work.
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24 Nov 2022 18:37 #257570
by snowgoer540
Replied by snowgoer540 on topic No success obtaining value of encoder from THCAD-10
Seems like you’re just starting out, so I recommend using pncconf and choosing qtplasmac as the screen which will do everything for you, including the calculations for the thcad.
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24 Nov 2022 19:16 #257572
by santy
Replied by santy on topic No success obtaining value of encoder from THCAD-10
i had no idea pncconf had a pre-made config for qtplasmac. thank you, will try now.
yes I'm starting out on linuxcnc! i have a bunch of old non-functional industrial machines; mills, plasma oxy, lathe, and a bunch of others my dad left me a few years back, and have decided to retrofit most of them. the first one is plasma and oxy and the next will be an ATC mill retrofit.
yes I'm starting out on linuxcnc! i have a bunch of old non-functional industrial machines; mills, plasma oxy, lathe, and a bunch of others my dad left me a few years back, and have decided to retrofit most of them. the first one is plasma and oxy and the next will be an ATC mill retrofit.
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24 Nov 2022 20:09 #257576
by santy
Replied by santy on topic No success obtaining value of encoder from THCAD-10
guess i'll have to update from linuxcnc 2.8 to 2.9.
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