Vevor L2544 giving error:20

[HaikoH (Haiko Hertes)]

Hi!
My dad got himself a Vevor L2544 (cheap chinese laser) with a super poor software. As I’m using Lightburn with my Atomstack Laser since about a year, I recommended him to try Lightburn.

The Laser is recognised and can connect to Lightburn and in general, it seems to work. But: Each move, whether it is a regular move-command or framing, results in error: 20:

Starting stream
error:20
Unsupported or invalid g-code command found in block.
On or near line 0:
Stream completed in 0:00
[MSG:Pgm End]

The laser is set to GRBL, using M8 for airassist (although there is no AA), GCode clustering is disabled.

Have you any hints or tips what to try to get it working? Thanks!

Vevor_L2544_GCode.gc (249 Bytes)

GCode:

; LightBurn 1.4.05
; GRBL device profile, user origin
; Bounds: X21 Y30 to X71 Y74
G00 G17 G40 G21 G54
G90
G0 X0 Y0
G91
M4
; Cut @ 6000 mm/min, 20% power
M8
G0 X15Y14
; Layer C00
G0 X-15Y-14
G1 Y44S200F6000
G1 X50
G1 Y-44
G1 X-50
M9
G1 S0
M5
G90
M2

[MikeyH (Mike Hembrey)]

@HaikoH

; LightBurn 1.4.05
; GRBL device profile, user origin
; Bounds: X21 Y30 to X71 Y74
G00 G17 G40 G21 G54
G90
G0 X0 Y0
G91
M4
; Cut @ 6000 mm/min, 20% power
M8
G0 X15Y14

Enter these 11 lines, ONE line at a time, in the Console window. Each one should respond with Ok. If it does not, you may have a bad controller. If it does, you are looking an a communications issue.

[HaikoH (Haiko Hertes)]

Thanks, we will try it out asap!

[HaikoH (Haiko Hertes)]

Hi @MikeyH . Sorry fot the delay, it took me a while to get my hands on that Laser again…

I have tested the G-Code commands above. The first once have no issue (I guess, semicolon is commenting them out somehow), but sending

G00 G17 G40 G21 G54

throws error:20 - Unsupported or invalid G-Code

The other G-statements do work and just giv “ok”.

I have not tried

M4
; Cut @ 6000 mm/min, 20% power
M8
G0 X15Y14

as I dont want to send a command to turn on the Laser when it is not working as it should from Lightburn…

Any idea?

[MikeyH (Mike Hembrey)]

@HaikoH

G00 G17 G40 G21 G54

No worry about the delay, I have been busy myself.

Enter these lines, one at a time, into the Console window:
G00 G17 G40 G21 G54 (should error)
G00 G40 G21 G54 (error?)
G00 G17 G21 G54 (error?)
G00 G17 G40 G54 (error?)
G00 G17 G40 G21 (error?)
The plan is to identify which Gcode the controller does not like. What concerns me is that any of them would fail.