Manual Z-axis for cheap diode laser engravers and various laser

Recently, I presented a manual Z-axis that works quite nicely but is overkill for a light-weight laser module. And, as I discovered a couple of days ago, can be a pain to assemble when making another one if the printed fits are particularly tight. So I started looking to see what I could do to simplify assembly, make it more compact, and adaptable to various laser modules. Firing up Onshape, I’ve come up with the following design… It’s “mostly-printed” with only six printed parts, two 60

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