SheetCAM beginner issue

[jlasater]

I'm new to CND plasma tables and bought a barely used Torchmate 4400 machine. It didn't come with the license for Torchmate CAD/CAM and I plan on using QCAD and SheetCAM. Having never used either, it only took me about ten minutes to make a simple square plate with four equally spaced holes. When I saved from SheetCAM after selecting the Torchmate Plasma as the machine type, and then open the file in Torchmate VMD, I get the following:



In SheetCAM, it looks like this:



This is the g-code created. Can you give me a clue as to where the issue is?

'Filename: plate with holes.tap
'Post processor: Torchmate plasma VMD.scpost
'Date: 19/08/2024
G70 'Units: Inches
G90
G40
'Part: plate with holes
'Operation: Outside Offset, 0, T1: 40 amp 1/4 in steel
G00 X13.1004 Y9.1711
M64
G02 X13.1004 Y8.8996 CX12.9647 Y9.0353 F100.0
G02 X13.1004 Y8.8996 CX11.0000 Y11.0000
G02 X12.9917 Y8.7962 CX11.0000 Y11.0000
G02 X12.7205 Y8.8099 CX12.8630 Y8.9387
M65
G00 X13.1004 Y2.1711
M64
G02 X13.1004 Y1.8996 CX12.9647 Y2.0353
G02 X13.1004 Y1.8996 CX11.0000 Y4.0000
G02 X12.9917 Y1.7962 CX11.0000 Y4.0000
G02 X12.7205 Y1.8099 CX12.8630 Y1.9387
M65
G00 X2.1711 Y1.8996
M64
G02 X1.8996 Y1.8996 CX2.0353 Y2.0353
G02 X1.8996 Y1.8996 CX4.0000 Y4.0000
G02 X1.7962 Y2.0083 CX4.0000 Y4.0000
G02 X1.8099 Y2.2795 CX1.9387 Y2.1370
M65
G00 X1.8996 Y12.8289
M64
G02 X1.8996 Y13.1004 CX2.0353 Y12.9647
G02 X1.8996 Y13.1004 CX4.0000 Y11.0000
G02 X2.0083 Y13.2038 CX4.0000 Y11.0000
G02 X2.2795 Y13.1901 CX2.1370 Y13.0613
M65
G00 X-0.2216 Y15.1920
M64
G02 X-0.0296 Y15.0000 CX-0.2216 Y15.0000
G01 Y0.0000
G03 X0.0000 Y-0.0296 CX0.0000 Y0.0000
G01 X15.0000
G03 X15.0296 Y0.0000 CX15.0000 Y0.0000
G01 Y15.0000
G03 X15.0000 Y15.0296 CX15.0000 Y15.0000
G01 X0.0000
G03 X-0.0296 Y15.0000 CX0.0000 Y15.0000
G01 Y14.8964
G02 X-0.2216 Y14.7044 CX-0.2216 Y14.8964
M65
M65
M02

[ROKCRLER]

Did you setup your POST in Sheetcam?

[jlasater]

Yes. I picked Torchmate Plasma because Torchmate Plasma VMD showed no Z axis. THC may be the one I should pick because I do have the torch height control. Not sure that would affect the scaling though. Worth a try.

[adbuch]

I tried to run a simulation with your g-code and it has problems.

I drew a similar part and used the SheetCam Torchmate plasma THC post processor and this is the result.

I would try some of the different SheetCAM Torchmate post processors to see if a different one will give you a better result as it appears in your VMD display.

David

[jlasater]

You were correct...I tried the first five Torchmate entries and sure enough, Torchmate VMD2 worked perfectly.