New Computer - Unsupported or invalid g-code command found in block

LightBurn Hardware Compatibility GRBL
,
1

Sculpfun S9 worked well previously. Got a new computer and installed the current version of Lightburn. Tried a materials test, framing worked correctly, but when I hit start the hesd moved momentarily, then stopped and I receive an error message

starting stream

Stream completed in 0:00

Starting stream

Layer

error:20

Unsupported or invalid g-code command found in block.

On or near line 1:

Job halted.

I saved the gcode and the first few statements are:

; LightBurn Pro 2.0.05
; GRBL device profile, absolute coords
; Bounds: X167.21 Y158.61 to X242.79 Y241.39
G00 G17 G40 G21 G54
G90
M4
; Cut @ 1800 mm/min, 30% power
M8
G0 X204.843Y238.69
; Layer
G1 Y241.375S300F1800
G1 X205.653
G1 X205.842Y241.368

Any suggestions would be appreciated.

2

You could try exporting the configuration from the working computer to your new machine.

3

Great idea, unfortunately the prior laptop died and this is a replacement. Once I get it working I will save the configuration file to avoid this problem in the future!

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4

This could be a communications issue. What reached the controller may not be what is in the GCode file. Try reseating your USB connections first. Then maybe try another cable.

5

When that happens very close to the start of the G-Code program, it’s typically due to choosing a G-Code dialect the controller doesn’t use and can’t understand.

If the machine doesn’t match one of the GRBL variants, choosing plain old GRBL generally solves the problem:

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