adding a simple pen plotter to linuxcnc plasma cutter

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31 May 2020 20:19 #169565 by rodw
THe generated code does not look like its been generated from the Plasmac postprocessor phill linked to. Remember you need to set up the tool offsets in the tool table.

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31 May 2020 23:18 #169585 by phillc54
Could you post the job file.

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28 Jun 2020 17:23 #173007 by Cranktown
Sorry, got sent out for work for three weeks so wasn't able to revisit this for a while.

since then i have totally scrapped the sharpie thing and have installed a proper air scribe and pneumatic actuator to bring it down to the work. I have it all hooked to the computer through two parallel ports and have set up the machine again with the new added outputs for the scribe and cylinder. The machine works as it did for plasma cutting and center spotting operations, but I am still unable to get the scribe to work.

when using phill's pp, i get the same error code from sheetcam I posted earlier

when using rod's pp, the machine will act similar to my original post here

I've tried picking through the code to try and figure out where it's going wrong but i feel i've followed every rabbit hole to the end with no good results so here i am again.

I figure now that I have a more conventional set up for a scribe, maybe it will be an easier problem to solve.

thanks for all you guys do!

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28 Jun 2020 23:16 #173046 by phillc54
Can you post the complete job file.

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03 Jul 2020 13:41 #173525 by Cranktown
the sheetcam job file?

File Attachment:

File Name: scribetest.zip
File Size:3 KB
Attachments:

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04 Jul 2020 04:29 #173582 by phillc54
In SheetCam, goto Options >> Job options >> Tool change and deselect Use X, Use Y and Use Z.

Selecting those sends some code to the PP that I haven't catered for.

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05 Jul 2020 13:57 #173669 by Cranktown
nice! that fixed the sheetcam error!
now linuxcnc is giving me an error:
invalid spindle ($) number in spindle speed command

I have my tool table in plasma c set up with the appropriate tool numbers, any ideas?

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06 Jul 2020 00:22 #173699 by rodw

Cranktown wrote: nice! that fixed the sheetcam error!
now linuxcnc is giving me an error:
invalid spindle ($) number in spindle speed command

I have my tool table in plasma c set up with the appropriate tool numbers, any ideas?


You need to share your G code.

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06 Jul 2020 00:33 #173700 by phillc54
Three things you could check:

Do you have mutli-tool enabled?
linuxcnc.org/docs/2.8/html/plasma/plasma...uide.html#multi-tool

In your machine HAL file do you have a loadrt line with " num_spindles=[TRAJ]SPINDLES" in it?

In your machine INI file do you have a line in the [TRAJ] section like "SPINDLES = 3"

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