GRBL Post processor for Sheetcam
GRBL Post processor for Sheetcam
Hey blokes,
I have been building a CNC plasma table for the last few months now, I had it running as a Router table first just to learn more about CNC machines first before I dived straight into Plasma. (I have had no CNC experience what so ever and I'm just an electrician so had to take baby steps to learn).
My machine is running an GRBL based Arduino platform based controller called a CNC Xpro V3 controller board which is basically just an arduino with everything packaged up neatly to use for a CNC machine.
So I have a relay off the spindle control circuit off that board which closes the switch on my plasma trigger.
I have got a few basic things cut out with it, using Fusion 360 and its inbuilt CAM software, but it only has basic plasma features no nesting or anything like that. So I downloaded sheetcam to see what its like and seems to have all the features that I need once I learn how to use it.
My question is, does any one know if there is a post processor for sheetcam that will support my GRBL based controller, or is it easier for me to convert my controller to mach3 so that I can also implement a THC?
Just a newby after some guidance please...
Thanks
C-Boy
I have been building a CNC plasma table for the last few months now, I had it running as a Router table first just to learn more about CNC machines first before I dived straight into Plasma. (I have had no CNC experience what so ever and I'm just an electrician so had to take baby steps to learn).
My machine is running an GRBL based Arduino platform based controller called a CNC Xpro V3 controller board which is basically just an arduino with everything packaged up neatly to use for a CNC machine.
So I have a relay off the spindle control circuit off that board which closes the switch on my plasma trigger.
I have got a few basic things cut out with it, using Fusion 360 and its inbuilt CAM software, but it only has basic plasma features no nesting or anything like that. So I downloaded sheetcam to see what its like and seems to have all the features that I need once I learn how to use it.
My question is, does any one know if there is a post processor for sheetcam that will support my GRBL based controller, or is it easier for me to convert my controller to mach3 so that I can also implement a THC?
Just a newby after some guidance please...
Thanks
C-Boy
- Attachments
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- CNCMACHINE_n.jpg (147.03 KiB) Viewed 10877 times
- Les Newell
- Site Admin
- Posts: 3668
- Joined: Thu May 11, 2006 8:12 pm
Here are a couple of grbl posts I have. One uses a touch-off switch and the other not.
- Attachments
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- GRBL plasma.scpost
- (2.79 KiB) Downloaded 1058 times
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- GRBL THC with scriber.scpost
- (7.84 KiB) Downloaded 693 times
Trying to run the post without the touch and I get this error.
Line 84 reads,
I am not sure where the problem is.
Any help appreciated.
Code: Select all
This post has thrown an error:
...home/chris/.SheetCamTNG-dev/posts/GRBL plasma.scpost:84: attempt to perform arithmetic on global 'firstPierce' (a nil value)
Do you want to edit the post?
Code: Select all
if (pierceDelay + firstPierce > 0.001) then
Any help appreciated.
- Les Newell
- Site Admin
- Posts: 3668
- Joined: Thu May 11, 2006 8:12 pm
Thanks for your response Les.Les Newell wrote:It looks like somehow you are missing a chunk of the post code. That should be line 204. Try downloading and installing it again.
It is line 204 in the GRBL THC with scriber.scpost but it shows up as line 84 in the plain GRBL plasma.scpost
Using the same tool and operation I can post process the GRBL THC with scriber config but not the GRBL plasma config.
- Les Newell
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Re: GRBL Post processor for Sheetcam
I am having the same trouble with my grbl plasma setup i tryed to down load the 2 post processors from this thread but it says i can't anymore?? Can someone post a post processor that i can use with grbl please? I would make one but i have no idea what to do. Thanks
- Les Newell
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Re: GRBL Post processor for Sheetcam
It looks like attachments were lost when I upgraded the forum. Here are fresh copies of the posts. Alternatively the development verison of Sheetcam comes with them.
- Attachments
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- GRBL THC with scriber.scpost
- (7.84 KiB) Downloaded 838 times
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- GRBL plasma.scpost
- (2.82 KiB) Downloaded 995 times
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- Posts: 9
- Joined: Mon Jan 29, 2018 5:43 pm
Re: GRBL Post processor for Sheetcam
Thanks Les this is going save me alot of headaches. so the scriber one I can use a touch off with my "z" is this correct?
- Les Newell
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Re: GRBL Post processor for Sheetcam
Yes, that is correct. If you go to Options->machine->post processor and click on the 'Edit post' button you will find a number of settings at the start of the file. These need to be configured to suit your machine. You can ignore the scriber stuff.
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Re: GRBL Post processor for Sheetcam
Ok easy enough one more question the switch for my floating head to find material do i just connect to the z limit or to some other input on the arduino? Like i think there is a probe input also
- Les Newell
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Re: GRBL Post processor for Sheetcam
Connect the switch to the probe input.