A Ruida controller is based upon a DSP chip. It is miles ahead of a Gcode controller in terms of capabilities. It can engrave at a much faster rate, has built in overscan adjustments, can run headless, can connect via ethernet or USB, just to name a few things. I would highly recommend getting a laser with a Ruida DSP controller. Stay as far away from the M2 Nano as possible, it is the worst of the controllers out there (I know @NedMan uses one, but he is a masochist…lol).
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