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Unfortunately, no. This project was done as a raster display, not a vector display. Well done work, but not what you want for vector Asteroids. If you wanted
by cr0sh 8y ago
Unfortunately, no.
This project was done as a raster display, not a vector display. Well done work, but not what you want for vector Asteroids.
If you wanted to DIY a laser vector Asteroids, you'll need to build your own galvo system in some manner. Google around for "DIY Laser Galvos" - you'll find a few people who have done it. Note: It isn't simple, nor easy. In fact, it'd probably be cheaper to buy some second-hand galvos off ebay than the time and cost to build it yourself. It would depend on whether you are more interested in DIY-ing the laser game, or if you are interested in learning how to build a laser light vector scanning system from scratch.
It's kinda the same question when people learn how "simple" it is to build their own CO2 laser - they think "Yes, now I can build a cheap laser cutter!"
But if you look into the forums about homemade laser building, every single one will advise you against that path, because it is a foolhardy thing to do - you will end up spending way more money for way less of a result than if you simply purchased the laser cutter (or at least the tube and such) outright, pre-built. Because building a laser is not as easy as it looks.
Same here. So weigh what it is you are trying to do and learn; maybe it would be worth it to you - and the game is really secondary.
That said - check out this instructable (and be sure to expand and read ALL of the comments - I mention something in there that may potentially be possible):
https://www.instructables.com/id/Moving-Things-With-Printed-Circuit-Boards/ https://www.instructables.com/id/Moving-Things-With-Printed-...
IOW - there may be a way to make a very cheap capacitive feedback "galvo" using custom etched quadrature magnetic positioning PCBs. I think the concept is sound, but the question would be "throw" of the laser, and speed, and whether ringing/overshoot of the mass could be controlled using such a system...
- regularfry 8y agoThat feels a lot more complicated than it needs to be. Have you ever taken apart a mid-range camera with an electromechanical image stabilizer? It's a triangular plastic plate with a lens in the middle, a pin at one corner, and a couple of rare earth magnets at the other two. There are two voice coils mounted next to the plate to repel or attract the magnets, and a light spring to center the whole thing. Remarkably simple device, doing a remarkably similar job (modulo replacing the lens with a mirror if needs be).