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Unfortunately, I did have to swap one stepper around due to the controls driving the laser head in the wrong direction 😉

It took me minutes to swap out the boards without checking instructions. Technology-wise you can see a visible improvement, due to the higher performance processor and more advanced firmware (lots of math that I don’t understand!). While the original board “works”, using my upgrade I have more control, using PWM to fire the laser, giving the opportunity for greyscale rather than simply power the laser on/off. This board is a 1:1 replacement for the existing electronics, but offers much better performance. I bought my controller and software license from Cohesion3D. Smoothie board replacement for the main GRBL controller boardĬan the upgraded machine achieve USA Brand-Name laser quality, at 1/10 the price? Let’s see … Smoothie Controller.This is the first follow up – this weekend I fitted a couple of them and did some test cuts! Previously I mentioned my Chinese K40 40w laser and how I was planning some upgrades.