Serious distortion

So I have the licensed version of sheetcam and I create a project ,with text, using inkscape. I’ve used both svg and dxf files to send to sheetcam and everything looks good and the gcode writes out with no issues although when I send it to open builds it is all distorted and wonky. My JD garage diy plasma table fails to read it throwing error code 33 I’m wondering if it has something to do with sheetcam being in inches and everything else in mm ? But I thought open builds would be able to read both I’m not sure if my problem is in sheetcam or else where any tips ? I have surfed open builds and Inkscape forums to no avail anything helps .

I seem to recall seeing this distortion problem in openbuilds controller posted in this forum before. I think it was a JD garage build also.

sheetcam does a pretty good job swapping between mm and inches. But to eliminate the possibility, sync all your sw in one or the other, seems like mm is what all but sheetcam is using. Sheetcam has two independent settings for units- for the drawing pallet, see menu Options-Application Options-Units; restart sheetcam after changing.
for gcode, see menu Options-Machine-Post Processor, upper left corner of window.
When importing your dxf or svg file, make sure you match the DPI value (90 or 96) to the CAD export value that created the file. Usually the value is 96.
Also, during import, make sure the scale factor is correct. If you are matching units in both CAD and sheetcam, the factor is 1:1.

in grbl, there is a config setting for reporting messages in mm or inches, the default should be mm. To check it, see all config registers, run cmd $$ from console, then see $13 value; 0 = mm, 1 = inches.

re. error33, this is thrown by grbl when cutting G2 or G3 true arcs, when the start and finish point of the cut does not fall on the arc within 0.005mm. Assume that it’s caused by the distorted toolpath situation for now.

Okay thank you very much I will try those things and keep you updated anything helps!

Here is what I’m looking at a comparison from Inkscape to sheetcam and to openbuilds