It is heavily dependent on what your manufacturer is expecting. Which speed? are you etching everything? Why all layers?Īdam and ray covered this one mostly. Regardless I am glad you found a work around. Do you have a sample of the code that the inkscape plugin produces? I am more curious than anything. This is why there is no speed set, or its set to zero. G0 moves are “rapid moves” meaning they are done at full machine travel speed. This is a hold over the time when CNC machines were programmed by hand standing at a machine. A G1 moves (feed move, with lasers its usually also a “Laser On” move) speed is often modal meaning its consistent until changed. Are there other Gcode variants in the other laser drivers and are they customisable?įor example Lasers that generate Gcode circle commands instead of breaking it up into straight line segments, and maybe other things I have not thought of? Now the point is that none of these things were mentioned in the manual and I had to work it out myself. I had to change the display units to mm/min and set the speed to 300 on all layers to complete the setup for my laser. This did not set a feed rate for the G0 moves but putting a custom G0 F3000 in the Gcode Tab of the Device settings solved that. The one I found that finally worked (so far in testing) was the smoothieware driver. Then I tried LinuxCNC and found that this adds a speed of zero to all the G0 move commands. In the world of MIDI music message protocols this is known as a running status, I am not sure of the name of it in the Gcode world. On examining the code I found that in a sequence of moves there was only one G1 code being sent, with subsequent vectors being just the X & Y values. I first tried GRBL but that produced very wired results on my laser. There is no mention of this either on line or in the LightBurn manual so I had to resort to trial and error. When it came to choosing a Laser cutter I thought it didn’t matter which I chose because I was not going to use it, but I found that the laser you chose affects the sort of Gcode that is produced. The speed is controlled by an overall speed setting as a multiplier from 50% to 500%, the manufacturers say there is no software speed control, but thanks to your software I have found out there is. There is no software ( Gcode ) power settings, that is done by an external knob. However, problems with the recommended software (Inkscape), forced me to seek an alternative and I am very happy with LightBurn.īasically it takes Gcode on an SD card and runs that. I have a LionsForge Craft Laser from Singapore which is a bit unconventional, but overall I am pleased with it.
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