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This is pretty amazing, like 'davnicwil said. Personally though, the coolest thing about this is how easy it is to make if you have some way to make the mask.
by archimedespi 11y ago
This is pretty amazing, like 'davnicwil said. Personally though, the coolest thing about this is how easy it is to make if you have some way to make the mask.
It uses a Raspberry Pi Camera Module[1], which is $30, with no modifications other than removing the lens and adding the mask.
I wonder if you could make a mask by machining plastic down very thin, and then punching tiny holes through with the smallest endmill you could find.
[1]: https://www.raspberrypi.org/products/camera-module/ https://www.raspberrypi.org/products/camera-module/
- saidajigumi 11y agoOffhand, this seems like a job for a laser cutter more than a milling machine. (But hey, if that's what you've got...) Depending on the cutter, largely its minimum kerf size, a single-pass may produce an entirely acceptable result. An alternative to direct hole cutting would be to use the laser to ablate an etching mask medium then etch the actual holes into the cut surface, which might produce a better end result. Anyone given this approach a try for high-detail work?
- archimedespi 11y agoI had forgotten that we have a laser cutter at the hackerspace! The minimum kerf on it is pretty bad though, so I bet it wouldn't work. After reading the pattern, it seems to be more than just holes, though, so it's probably a bit harder to fabricate.
- ChuckMcM 11y agoReplace 'endmill' with 'precision aperture laser' and the answer is yes. Back at the Optics lab at USC we used an argon laser with a precision mask/plate to may 1uM holes in a substrate at arbitrary places.