I bought a Onefinity cnc and Jtech laser. I downloaded the Lightburn software and have been going thru the software on how to setup the program. I am having trouble with burning the text I create. The laser only turns on to do the box around the text. Gcode works fine and CNC moves like it is working but laser never turns on.
Hi Jeff, could you upload a screenshot of youâre project with the cut/layer settings, itâll help others to be able to help you.
Many thanks.
These are worth review: Common Grbl Setups - LightBurn Software Documentation
and: Troubleshooting - LightBurn Software Documentation
And for your setup, JTech has some great resources to ensure you have the configuration set correctly, using macros, allowing you to switch back and forth, CNC / laser and back.
I have Carveco Maker +
When then you say âthe box around the textâ are you referring to a box youâve drawn around your text, or the outline of the text itself?
If you mean itâs only drawing the outline of the text itâs because youâve got your layer set to âLineâ. Try setting it to âFillâ instead.
If Iâve misunderstood the problem, then sorryâŚ
I load the Gcode into my onefinity cnc. everything starts moving when I push play. the router makes all the moves like its supposed to do. the laser does not turn on until it starts doing the line around the text.
Ok, thank you. I am not sure why you are providing this information. If you have a specific question or comment about the information I provided, Iâll try to assist. 
Was just l letting you know what software on the cnc i an running.
Itâs because youâre using the GRBL-M3 profile in LightBurn, and that is currently broken, but will be fixed shortly in our patch update. If you switch to using the âGRBLâ profile, it will work as long as you do not have âFast Whitespaceâ enabled.
The GCode is being emitted using G0 moves for skips, and the OneFinity controller does not shut the laser off automatically for those. If you use the GRBL profile, it uses G1 moves for everything, and sets the power to 0 for travel moves.
THanks. That fixed that problem. Now the laser comes on as soon as i start the job.
1 Like
I reloaded my file to burn my shop logo , which worked numerous times before, now its back to not turning on the laser until the end of the job. I just bought the full version and now its back to not working.
Purchasing the software does not change settings. Click the âSave GCodeâ button, save it to a text file, and attach the file here so we can have a look, in addition to a screen shot of your cut settings.
For what itâs worth, saying, âit does not workâ is not helpful - If I told you my car doesnât work, where would you have me start looking? The more specific information you can give, the better, for example:
- It doesnât appear to be communicating at all - I donât see anything in the console
- It connects, and it moves, but the laser doesnât fire
- When I click start, thereâs a loud noise, and the machine just grinds
Any of the above would give us at least something to work from. Saying âit doesnât workâ means I have to ask you things like, âIn what way doesnât it work?â meaning you donât get a solution nearly as fast.
So - In what way doesnât it work?
I figured I could continue on with this same thread. Didnât realize I had to start over. I Was instructed to use GRBL instead of GRBL-M3. It worked for a while until I reloaded my saved project file. Thatâs what I meant when I said its not working again.
This was what I was told:
Itâs because youâre using the GRBL-M3 profile in LightBurn, and that is currently broken, but will be fixed shortly in our patch update. If you switch to using the âGRBLâ profile, it will work as long as you do not have âFast Whitespaceâ enabled.
The GCode is being emitted using G0 moves for skips, and the OneFinity controller does not shut the laser off automatically for those. If you use the GRBL profile, it uses G1 moves for everything, and sets the power to 0 for travel moves.
; LightBurn 1.0.00
; GRBL-M3 (1.1e or earlier) device profile, user origin
; Bounds: X10.01 Y10.01 to X20.02 Y20.02
G00 G17 G40 G20 G54
G90
G0 X0 Y0
G91
; Scan @ 5 mm/sec, 100% power
M9
M5
G0X0.1719Y0.0934
; Layer C00
G1X0.0063F11.811S1000
G0X0.0203
G1X0.0062
G0X0.0232
G1X0.0148
G0X0.0135
G1X0.0052
G0X0.0146
G1X0.0054
G0X0.0132
G1X0.0065
G0X0.0083
G1X0.0158
G0X0.0036Y0.0039
G1X-0.0065
G0X-0.01
G1X-0.0068
G0X-0.007
G1X-0.0065
G0X-0.0106
G1X-0.0054
G0X-0.0146
G1X-0.0052
G0X-0.0093
G1X-0.0071
G0X-0.0093
G1X-0.0073
G0X-0.0174
G1X-0.0084
G0X-0.0181
G1X-0.0085
G0X-0.001Y0.004
G1X0.0045
G0X0.0014
G1X0.0047
G0X0.0159
G1X0.0046
G0X0.0013
G1X0.0046
G0X0.0145
G1X0.0059
G0X0.0157
G1X0.0058
G0X0.0075
G1X0.0052
G0X0.0146
G1X0.0054
G0X0.0081
G1X0.0064
G0X0.0082
G1X0.0056
G0X0.0148
G1X0.0055
G0X-0.001Y0.0039
G1X-0.0102
G0X-0.0256
G1X-0.0062
G0X-0.005
G1X-0.006
G0X-0.0146
G1X-0.0052
G0X-0.0068
G1X-0.0055
G0X-0.0177
G1X-0.0057
G0X-0.0126
G1X-0.0048
G0X-0.0031
G1X-0.0048
G0X-0.0137
G1X-0.0049
G0X-0.0032
G1X-0.0047
G0X-0.001Y0.0039
G1X0.0049
G0X0.0051
G1X0.0049
G0X0.0115
G1X0.005
G0X0.0049
G1X0.005
G0X0.0115
G1X0.0055
G0X0.0182
G1X0.0053
G0X0.0067
G1X0.0052
G0X0.0146
G1X0.0146
G0X0.017
G1X0.0164
G0X-0.0122Y0.004
G1X-0.0065
G0X-0.0153
G1X-0.0063
G0X-0.0023
G1X-0.0054
G0X-0.0142
G1X-0.0056
G0X-0.0074
G1X-0.0053
G0X-0.017
G1X-0.0056
G0X-0.0108
G1X-0.0052
G0X-0.0067
G1X-0.0052
G0X-0.0093
G1X-0.0049
G0X-0.0071
G1X-0.0051
G0X-0.001Y0.0039
G1X0.0052
G0X0.0091
G1X0.0049
G0X0.0071
G1X0.0054
G0X0.0085
G1X0.0053
G0X0.0114
G1X0.0064
G0X0.0123
G1X0.0064
G0X0.0086
G1X0.0077
G0X0.0121
G1X0.0054
G0X0.0061
G1X0.0066
G0X0.0111
G1X0.0052
G0X0.0124
G1X0.0056
G0X-0.0022Y0.0039
G1X-0.0188
G0X-0.0093
G1X-0.0068
G0X-0.0099
G1X-0.0054
G0X-0.0035
G1X-0.0103
G0X-0.0013
G1X-0.0047
G0X-0.0121
G1X-0.0183
G0X-0.0136
G1X-0.0054
G0X-0.0106
G1X-0.0053
G0X-0.005
G1X-0.0049
G0X-0.0111
G1X-0.0054
G0X-0.001Y0.004
G1X0.0055
G0X0.0132
G1X0.0048
G0X0.0028
G1X0.0053
G0X0.0127
G1X0.0055
G0X0.0627
G1X0.0054
G0Y0.0039
G1X-0.0054
G0X-0.0616
G1X-0.0056
G0X-0.0149
G1X-0.0052
G0X-0.0007
G1X-0.0047
G0X-0.0153
G1X-0.0056
G0X-0.0011Y0.004
G1X0.0058
G0X0.0173
G1X0.0084
G0X0.017
G1X0.0057
G0X0.0605
G1X0.0054
G0X0.0063Y0.0314
G1X-0.0049
G0X-0.0012
G1X-0.0159
G0X-0.0147
G1X-0.0192
G0X-0.0147
G1X-0.019
G0X-0.0204
G1X-0.007
G0X-0.0194
G1X-0.0074
G0X-0.001Y0.004
G1X0.0044
G1X0.0051
G0X0.0172
G1X0.0043
G1X0.0049
G0X0.0161
G1X0.0062
G0X0.0131
G1X0.0063
G0X0.0083
G1X0.0059
G0X0.0133
G1X0.0062
G0X0.0084
G1X0.0058
G0X0.0122
G1X0.0071
G0Y0.0039
G1X-0.0053
G0X-0.0156
G1X-0.0057
G0X-0.0056
G1X-0.0056
G0X-0.0171
G1X-0.0053
G0X-0.0057
G1X-0.0056
G0X-0.0171
G1X-0.0057
G0X-0.0135
G1X-0.0049
G0X-0.002
G1X-0.0045
G0X-0.015
G1X-0.0049
G0X-0.002
G1X-0.0047
G0X-0.0011Y0.004
G1X0.0049
G0X0.004
G1X0.0049
G0X0.0128
G1X0.0047
G0X0.0039
G1X0.005
G0X0.012
G1X0.0056
G0X0.0181
G1X0.0054
G0X0.0048
G1X0.0054
G0X0.0182
G1X0.0054
G0X0.0048
G1X0.0054
G0X0.0167
G1X0.0049
G0Y0.0039
G1X-0.0052
G0X-0.0162
G1X-0.0056
G0X-0.0049
G1X-0.0055
G0X-0.0178
G1X-0.0054
G0X-0.0049
G1X-0.0057
G0X-0.0177
G1X-0.0057
G0X-0.0111
G1X-0.0051
G0X-0.0057
G1X-0.0049
G0X-0.0106
G1X-0.005
G0X-0.0059
G1X-0.005
G0X-0.001Y0.0039
G1X0.0051
G0X0.0078
G1X0.0051
G0X0.0084
G1X0.0052
G0X0.0075
G1X0.0052
G0X0.0109
G1X0.0059
G0X0.0154
G1X0.0057
G0X0.0068
G1X0.0058
G0X0.0154
G1X0.0061
G0X0.0065
G1X0.0058
G0X0.0139
G1X0.0064
G0Y0.004
G1X-0.0095
G0X-0.0081
G1X-0.0066
G0X-0.0106
G1X-0.007
G0X-0.0089
G1X-0.0072
G0X-0.0106
G1X-0.007
G0X-0.0088
G1X-0.0073
G0X-0.0119
G1X-0.0054
G0X-0.0094
G1X-0.0052
G0X-0.0063
G1X-0.0051
G0X-0.0098
G1X-0.0053
G0X-0.001Y0.0039
G1X0.0054
G0X0.0118
G1X0.0051
G0X0.0041
G1X0.0051
G0X0.0116
G1X0.0055
G0X0.0155
G1X0.0133
G0X0.02
G1X0.0144
G0X0.019
G1X0.0119
G0X0.0031
G1X0.0052
G0Y0.0039
G1X-0.0052
G0X-0.0962
G1X-0.0055
G0X-0.0137
G1X-0.0051
G0X-0.0019
G1X-0.0051
G0X-0.0138
G1X-0.0056
G0X-0.001Y0.004
G1X0.0057
G0X0.0159
G1X0.0098
G0X0.0157
G1X0.0057
G0X0.0951
G1X0.0052
G0Y0.0039
G1X-0.0052
G0X-0.094
G1X-0.0058
G0X-0.0179
G1X-0.0075
G0X-0.0179
G1X-0.0058
G0X-0.0292Y0.0276
G1X0.0057
G0X0.025
G1X0.0071
G0X0.0115
G1X0.0113
G0X0.0218
G1X0.0115
G0X0.0197
G1X0.0118
G0X0.0055Y0.0039
G1X-0.0081
G0X-0.0062
G1X-0.0081
G0X-0.01
G1X-0.0072
G0X-0.0067
G1X-0.0082
G0X-0.0099
G1X-0.0084
G0X-0.0057
G1X-0.0081
G0X-0.0089
G1X-0.0073
G0X-0.0224
G1X-0.0057
G0Y0.004
G1X0.0057
G0X0.0199
G1X0.0073
G0X0.009
G1X0.006
G0X0.0148
G1X0.006
G0X0.0059
G1X0.0055
G0X0.0146
G1X0.0053
G0X0.0063
G1X0.0057
G0X0.0151
G1X0.0059
G0X-0.0223Y0.0039
G1X-0.0055
G0X-0.0057
G1X-0.0078
G0X-0.0221
G1X-0.0055
G0X-0.0176
G1X-0.0057
G0X-0.0106
G1X-0.0071
G0X-0.0174
G1X-0.0057
G0Y0.0039
G1X0.0057
G0X0.0143
G1X0.0071
G0X0.0136
G1X0.0055
G0X0.0183
G1X0.0053
G0X0.0097
G1X0.0165
G0X0.0087
G1X0.0289
G0X-0.0004Y0.004
G1X-0.0056
G0X-0.0169
G1X-0.0053
G0X-0.0214
G1X-0.0082
G0X-0.0065
G1X-0.0053
G0X-0.0174
G1X-0.0057
G0X-0.0173
G1X-0.0236
G0Y0.0039
G1X0.0316
G0X0.0106
G1X0.0061
G0X0.0139
G1X0.0059
G0X0.0072
G1X0.0051
G0X0.013
G1X0.0054
G0X0.008
G1X0.0055
G0X0.0139
G1X0.0056
G0X-0.0028Y0.0039
G1X-0.0199
G0X-0.0121
G1X-0.0202
G0X-0.0116
G1X-0.0201
G0X-0.0112
G1X-0.0063
G0X-0.0219
G1X-0.0057
G0Y0.004
G1X0.0057
G0X0.0228
G1X0.0059
G0X0.0185
G1X0.0015
G0X0.0299
G1X0.0046
G0X0.0285
G1X0.0022
G0X-0.0859Y0.0039
G1X-0.0068
G0X-0.0212
G1X-0.0057
G0Y0.0039
G1X0.0312
G0X0.1735Y0.0315
G1X-0.0173
G0X-0.0165
G1X-0.017
G0X-0.015
G1X-0.0179
G0X-0.0123
G1X-0.0178
G0X-0.014
G1X-0.0173
G0X-0.013
G1X-0.0052
G0X-0.0148
G1X-0.0054
G0X-0.0083
G1X-0.0052
G0X-0.015
G1X-0.0052
G0X-0.0119
G1X-0.017
G0X-0.0183
G1X-0.0057
G0Y0.004
G1X0.0057
G0X0.0145
G1X0.0062
G0X0.0115
G1X0.0066
G0X0.0084
G1X0.0052
G0X0.015
G1X0.0053
G0X0.0082
G1X0.0054
G0X0.0149
G1X0.0051
G0X0.0094
G1X0.0063
G0X0.0116
G1X0.0066
G0X0.0072
G1X0.0065
G0X0.0118
G1X0.0058
G0X0.006
G1X0.0065
G0X0.0118
G1X0.0058
G0X0.0082
G1X0.0062
G0X0.0115
G1X0.0066
G0X0.0094
G1X0.0063
G0X0.0116
G1X0.0066
G0X-0.0015Y0.0039
G1X-0.0027
G0X-0.0167
G1X-0.0056
G0X-0.0089
G1X-0.0027
G0X-0.0166
G1X-0.0055
G0X-0.0056
G1X-0.0055
G0X-0.0148
G1X-0.0026
G0X-0.0072
G1X-0.0056
G0X-0.0147
G1X-0.0027
G0X-0.0104
G1X-0.0027
G0X-0.0167
G1X-0.0056
G0X-0.0074
G1X-0.0051
G0X-0.0149
G1X-0.0054
G0X-0.0081
G1X-0.0054
G0X-0.015
G1X-0.0052
G0X-0.0099
G1X-0.0027
G0X-0.0166
G1X-0.0055
G0X-0.0125
G1X-0.0057
G0Y0.004
G1X0.0057
G0X0.0119
G1X0.0053
G0X0.03
G1X0.0052
G0X0.015
G1X0.0053
G0X0.0082
G1X0.0054
G0X0.0149
G1X0.0051
G0X0.0068
G1X0.0054
G0X0.04
G1X0.0125
G0X0.0177
G1X0.0124
G0X0.0061
G1X0.0053
G0X0.0284
G1X0.0054
G0X0.0232Y0.0039
G1X-0.0285
G0X-0.0052
G1X-0.0286
G0X-0.0129
G1X-0.0145
G0X-0.0157
G1X-0.0145
G0X-0.0078
G1X-0.0286
G0X-0.0069
G1X-0.0053
G0X-0.0147
G1X-0.0054
G0X-0.0083
G1X-0.0052
G0X-0.0149
G1X-0.0053
G0X-0.0067
G1X-0.0286
G0X-0.0119
G1X-0.0057
G0Y0.0039
G1X0.0057
G0X0.0126
G1X0.0057
G0X0.016
G1X0.0054
G0X0.0075
G1X0.0058
G0X0.0142
G1X0.0053
G0X0.0084
G1X0.0059
G0X0.0141
G1X0.0054
G0X0.0075
G1X0.0055
G0X0.0163
G1X0.0054
G0X0.0064
G1X0.0058
G0X0.0243
G1X0.0058
G0X0.0246
G1X0.0057
G0X0.016
G1X0.0055
G0X0.0065
G1X0.0055
G0X0.0163
G1X0.0054
G0X-0.0019Y0.004
G1X-0.0061
G0X-0.0109
G1X-0.0062
G0X-0.0105
G1X-0.0061
G0X-0.0106
G1X-0.0066
G0X-0.0092
G1X-0.0062
G0X-0.0111
G1X-0.0056
G0X-0.0073
G1X-0.0062
G0X-0.011
G1X-0.0056
G0X-0.0086
G1X-0.0061
G0X-0.0109
G1X-0.0062
G0X-0.0101
G1X-0.0067
G0X-0.0097
G1X-0.0085
G0X-0.0089
G1X-0.0068
G0X-0.0098
G1X-0.0082
G0X-0.0093
G1X-0.0061
G0X-0.0106
G1X-0.0066
G0X-0.0146
G1X-0.0057
G0Y0.0039
G1X0.0057
G0X0.0182
G1X0.0162
G0X0.0128
G1X0.0048
G0X0.0024
G1X0.0149
G0X0.0116
G1X0.0048
G0X0.0024
G1X0.015
G0X0.0165
G1X0.0162
G0X0.0148
G1X0.0172
G0X0.013
G1X0.0171
G0X0.0157
G1X0.0161
G0X0.0177
G1X0.0162
G0X-0.2636Y0.0039
G1X-0.0057
G0Y0.004
G1X0.0057
G0X0.0143Y0.0039
G1X-0.0341
; Cut @ 5 mm/sec, 100% power
M8
M5
G0X-0.0249Y0.0526
; Layer C01
M3
G1X0.394
G1Y-0.394
G1X-0.394
G1Y0.394
M5
M9
G1S0
G90
; return to user-defined finish pos
G0 X0 Y0
M2
Youâre still using the GRBL-M3 device, and you havenât updated LightBurn to 1.0.01. Changing to âGRBLâ or updating to 1.0.01 will fix your issue.
This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.