You’ll need to put this new firmware.bin file on your memory card and put the card back into the board while off, then power up the board and watch the green LEDs L1-L4 count up in binary to indicate that firmware is flashing. Dropbox Cohesion3D Smoothie Cluster Firmware We’re happy to report that we have a new update for the Smoothie firmware that should allow it to go approximately 3 times faster than it could before, even slightly beating out GRBL-LPC in our internal raster speed tests. This is why we had the alternate GRBL-LPC firmware which allowed you to to run approximately 3 times faster, but it was not able to run files from the memory card, drive the Graphic LCD Screen, and have the more extensible configuration via the config file on the memory card.

So when you try to do a grayscale image with a 0.1mm dot size/ 254 DPI at 80mm/s, that’s 800 gCodes per second right there and about the max that you could do before things started getting weird. This is due to a theoretical limit of only being able to process 1,000 gCodes per second, and more like 800 in real life. Up until now, the stock firmware (Smoothie) we have shipped on the Cohesion3D Boards has been great for cutting but has struggled with high detail raster engraving at higher speeds.

Cohesion3d