Step through the process from the idea to the finished piece

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31 May 2021 07:09 #210776 by Giuseppe
Hi at all, my machine is ready for the first cut. I tried some examples from linuxcnc and whant to go on with my own sample.
I have to say that is not so easy. I use various programs, inkscape, fusion 360, sheetcam. but no matter what i use in every program something else does not work.
Apparently there is no suitable post processor for Plasmac in fusion 360. in sheetcam I fail with the missing tool :-(
Can some one give me a short walktrough how to make a first testjob?

By the way, what is the postprocessor doing? what does linuxcnc do? Sometimes I think there are things that can be set in the cam program and in linuxcnc too.

That confuses me.

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01 Jun 2021 21:17 #210912 by andypugh
The CAD package makes a model of the part.
The CAM converts that part in to G-code commands for the CNC machine
LinuxCNC interprets the G-code and moves the motors to make the part.

And, yes, some things can be done in either CAM or LinuxCNC. Tool diameter compensation, for example.

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02 Jun 2021 11:32 - 02 Jun 2021 11:34 #210989 by Giuseppe
ok thank you. in the meantime i bought sheetcam.
i load a dxf into it and make teh gcode. I used the postprocessor
LinuxCNC PlasmaC Ver. 0.2 that comes with sheetcam.

It starts well in linuxcnc the cutting process stoped after a few time with this errors.
sea picture attached.

Whats the problem?

at the moment every path the toarch makes a touch off. can i reduce this only at the start of the whole project only one time?
Attachments:
Last edit: 02 Jun 2021 11:34 by Giuseppe.

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02 Jun 2021 13:23 #210995 by Giuseppe
hmm, i think i know the problem. Maybe the metall bend more and more.
so that the z axis move avery time a bit higher.

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