SimpleG - Fast gCode streaming for laser engraving with grbl

[picengravertoo]

@TimoBirnschein

So in theory it should be at least as fast as PicSender

Here is proof where your theory is surely debunked.

Where is the laser engraving category?

We just did a feedrate test engraving a Dithered image with just S0 (white) S255 (Black) commands to pulse the laser on/off. The Feedrate was set at 200IPM in the gcode file and it took 47:29 (2849 sec) in time to engrave. The engraving is 10" X 8.34", but we used Skip White in PicEngrave Pro 5 to cut down on the overall engraving time. We reversed engineered the gcode and it has a 9417.644408 inch perimeter (travel distance). To confirm the actual feedrate it engraved at, we did a simple calcu…

Where is the laser engraving category?

We have been doing some extensive testing with a pre-released version of PicSender. This was raster engraved on Birch Ply with our 6W 450nm laser diode on our Shapeoko 2. A variable feedrate was set between 200 IPM (white) and 150 IPM (black) using our Feed Rate Change feature in PicEngrave Pro 5. The laser’s power range was set at a Min S15 and Max S255 and there were 1,507,509 total X,Y,S & F command lines in the gcode file. It was streamed to the J-Tech PWM 9g grbl firmware. [image]

2800mm/min max is slow compared to us able to raster laser engrave photos at 5037.7mm/min on our Shapeoko 2 6W LD machine with PicSender.