I got a cheap Chinese CNC 2418 about two years ago, in the fall of 2016, and I haven't regretted it. I don't claim what I will describe (in the later posts, this is just the preface) is the only or "best" way to mill out PCBs, but I've done way over a hundred boards in total (maybe something like 70+ different designs, largest "batch" has been 40 boards of single small design, the IR-led / photodiode transmit/receiver boards for the robots) with the CNC and have developed my own "method" which makes good boards almost all of the time, and when it doesn't, it's usually either due to dull V-bit, trying to "save time" by skimping on the autoleveling grid size or a mistake in design, or a combination of these. This is a "tutorial" I've been meaning to write for a good while (like.
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