When you set up a new device using the wizard choose Marlin, then Serial/USB, name it, and enter the dimensions (I used 200x200 since the laser is offset from the extruder). If you try it, here are some tips:īig Sur already has serial drivers installed It's decent software, but I'm not sure if I'm going to stick with it. To print from my Mac I downloaded the trial version of LightBurn. This also acts as an emergency cutoff for the laser. The switch plugs into the board, the cooling fan and laser plug to each side of the switch. I drilled a hole in the front panel and installed a toggle (DPDT, on-on) and created a little harness.

I had to take the cover off to understand why I always heard a fan running.

By the way, there are two fans in the print head, one cools the extruder and is always on, the other cools the print. They are both controlled at the same time my using the M106 command. One is wired to the cooling head fan, the other to the little fan that cools the control board. There are two fan ports on the control board (at least on the 4.2.2 version). Just got the Creality laser module installed on my Ender 3 v2 and thought I would post some things I learned along the way.

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