Groping my way forward

[Britannicus1]

Hi - I'm slowly starting to understand some of the basics in CNC - but I'm still not quite there :


I have now gone as far as creating an image and successfully simulating the cut i want to try in Fusion - I even managed to generate G code from that

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Unfortunately when I load this to my CNC controller (my machine came with USB CNC) - it refuses to load with a message it didn't understand line 1 -

Now - if I take the file and load it to "quick and dirty g code simulator" - this shows a number of lines in the code it doesn't understand and the simulation is rather different - see screen print

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The only help I can find in Youtube - seem to use mach3 as a tool and seems to need some amendment of the code - can someone help me to get the code to load ?

[Clive S]

I don't use USB CNC but try deleting : and ; from the lines

Hve you used the correct post processor in Fusion as the code you have shown includes : and ; that it might object to.
Just a thought

[Britannicus1]

there's more than one ?? - I used the engrave and just right clicked to bring up the menu and selected post processor - see the screen print, I'm really quite a dummy here

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[Kitwn]

The post processor will produce G-code that suits the specific machine control software you have. The differences between machines are usually quite small but none the less significant. Remember that G-code for CNC machine control has been around since computers were made from triodes so it's inevitable that there will be some variations between different generations of machines and their software.

[Britannicus1]

The post processor will produce G-code that suits the specific machine control software you have. The differences between machines are usually quite small but none the less significant. Remember that G-code for CNC machine control has been around since computers were made from triodes so it's inevitable that there will be some variations between different generations of machines and their software.

I think you get to the heart of it here - so can anyone point me to somewhere that can help with the necessary modifications

[needleworks]

I think you get to the heart of it here - so can anyone point me to somewhere that can help with the necessary modifications

You need to use a post processor that is compatible with the machine you are cutting on (if I am reading what the problem is correctly)
If you are using Fusion 360 you should be able to find a PP here ;_
https://cam.autodesk.com/hsmposts

Just ignore this post if you have already done this:friendly_wink:

[Britannicus1]

Thank you - I certainly have not done that :-)

[Britannicus1]

You need to use a post processor that is compatible with the machine you are cutting on (if I am reading what the problem is correctly)
If you are using Fusion 360 you should be able to find a PP here ;_
https://cam.autodesk.com/hsmposts

Just ignore this post if you have already done this:friendly_wink:

Really helpful, thank you so much - I followed this up - but discovered that there is no PP on the fusion site for USBCNC, but now i knew what I was a looking for and found this - just in case anyone else is looking for this

http://hacknorway.com/wordpress/post-processor-for-fusion-360-and-cnc-usb-controller/#comment-3108

I really appreciate your help as it's meant that i think I'm finally getting to where i can use my new CNC machine

[needleworks]

Really helpful, thank you so much - I followed this up - but discovered that there is no PP on the fusion site for USBCNC, but now i knew what I was a looking for and found this - just in case anyone else is looking for this

http://hacknorway.com/wordpress/post-processor-for-fusion-360-and-cnc-usb-controller/#comment-3108

I really appreciate your help as it's meant that i think I'm finally getting to where i can use my new CNC machine

Hopefully it will work :beer::beer:

[Boyan Silyavski]

I wonder why don't you ask that question the manufacturer of the board? Probably he will sort you out for a minute. And probably standard G code / Fanuc style will work

[Britannicus1]

I wonder why don't you ask that question the manufacturer of the board? Probably he will sort you out for a minute. And probably standard G code / Fanuc style will work

Interestingly I did precisely that - unfortunately I didn't get anything like a helpful answer - instead they just recommended that i re-install the controller software, which by the time I got the answer back, Kitwn had already put me onto the right track to locate an appropriate PP