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Esau | 8 years ago

You know, if Amazon made an Echo that hung on the wall and had Hal's red "eye", I think I would have to get one despite myself.

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throwanem|8 years ago

I was going to spend a little while spitballing about how it shouldn't be all that hard to build a wall-hangable replica without all the creepy cloud-bound spy smarts - and then I found this [1], which does a better job than I could. I'd probably clean up the sides and use something nicer than veroboard for the grille, if I were making this myself, but it's a very good first approximation to say the least.

And Adafruit's method solves the major problem, of where to find a suitable lens to replace the rather expensive [2] original prop part, very handily! Unfortunately, they're out of stock of the rather crucial button, but Sparkfun appears [3] to have no trouble sourcing them.

ETA: On further reading, I wouldn't follow this Adafruit method; I don't have access to a laser cutter, and even if I did, having the tabs stick out the side, and the whole thing sort of jigsawed together that way, doesn't appeal.

Instead, I'd work up a frame from aluminum bar stock, which isn't all that much harder to work with than plastic, and build the faceplate to mount picture-frame-style in a groove milled into the inside face of the bar. If you've got access to a laser cutter, you probably also have, or can easily enough get access to, a milling machine, whether CNC or manual - they even make mini-XY tables with Dremel mounts, which might actually be preferable for a small job like this to something more like a Bridgeport machine. (If you do want some smarts in there, you can have as much room for them as you need - just pick a suitably sized bar stock. The groove will be near the front edge in any case, since the prop doesn't have a lot of depth there; the rest is just trading off between how much space you have behind the faceplate, and how proud of the wall you want the finished item to be.)

Also, since I (again) don't have access to a laser cutter, I'd cut down the grille from the door RF shield out of a scrap-heap microwave. If you don't have one of those lying around - and why would you? - your local junkyard does, and who doesn't love a trip to the junkyard? Shouldn't cost more than a few bucks; if you bring your dikes and don't mind maybe having to stitch up a hole in a pocket, you can probably cut the piece you need and smuggle it out without paying a cent, although you probably want to be paying for something else at the same time so it doesn't look too sketchy.

Looks like a fun project, in any case, laser cutter or no!

[1] https://cdn-learn.adafruit.com/downloads/pdf/hal-9000-replic...

[2] http://www.kenrockwell.com/nikon/8mm-f8.htm

[3] https://www.sparkfun.com/products/9181