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Not sure if its still relevant: The Pi has some issues with real time I/O, thats why it is used instead of directly using the Pi I/Os, you will have the same problems with the second one.
Just a line laser, if you find one with is "eye safe" it will be better (also other color might be better), the used red line laser is just the best to get (we normally shop by watterott, but just check your electronic supplier if he has a diode line laser with as less power as possible)
Color-changing Laser Cut Je...View Instructable »
I don't think the cricut machine can handle a 2mm acrylic sheet, a milling machine will work (or, when i first read CuFan reply: A 3D printed version out of halfway transparent material might work, but will not look that great). With a laser cutter cutting and engraving is in minute range, making an individual design took far more time per participant.
Not the first oen who asked this question - and the answer is still make it yourself, that's the whole idea of this instructable ^^. And there is plenty of room for improvements to make a better one than this version ;-)
Sorry for the late answer: Should be the basic pi as username and raspberry as password
Yes, as far as i know Mario used it with the raspberry pi (needed some fixes first to get the camera running)
The Fabscan Pi hat is now available at watterott.com
Shouldn't be a problem, just enlarge the whole setup (well, better use now the "official" box design at fabscan.org, because it's simpler and smaller). And one moment we thought about making a person scanner out of it (completly useless because of laser and long scanning time) and a micro version for scanning tiny things. Only problem might be the camera lens. Try it out :-)
Sorry for the late answer: 3 in Parallel with a common resistor. Iknow, that's somethign what you shouldn't do , but in that case it was the easiest solution (series requieres a higher voltage than teh 3 mignon cells, and one resistor per led looks ugly (more wires))
Acrylic Description sheet w...View Instructable »
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