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So, I got bored, and that's never, ever, ever a good thing. :can:
I went out and bought a set of $1.50 headphones, and attacked them with a hot glue gun and screwdriver, and glued a few FSRs to them. To top it all off I pointed a 150mW labby at the whole mess (because that was the only laser I had on hand that could run on a continuous duty cycle without melting.
The result?
No, it's not pretty. Initial results weren't too flash- I got more interesting patterns by smacking the baseplate on which everything was mounted.
The baseplate started life as a spirograph baseplate, hence the markings.
Then I switched over to my Lenovo S10e (which has a higher max volume output than my PC's sound card) and used Audacity to slightly de-sync the tracks on both speakers, along with a bit of re-alignment.
I'm still surprised it works. Don't believe me? Here, watch this video.
The only gripe with it is the scan angle, it's pathetically narrow. The pattern's 15cm wide at 3m, and it *could* be better.
But for something that costs $1.50, I'm not complaining.
I went out and bought a set of $1.50 headphones, and attacked them with a hot glue gun and screwdriver, and glued a few FSRs to them. To top it all off I pointed a 150mW labby at the whole mess (because that was the only laser I had on hand that could run on a continuous duty cycle without melting.
The result?
No, it's not pretty. Initial results weren't too flash- I got more interesting patterns by smacking the baseplate on which everything was mounted.
The baseplate started life as a spirograph baseplate, hence the markings.
Then I switched over to my Lenovo S10e (which has a higher max volume output than my PC's sound card) and used Audacity to slightly de-sync the tracks on both speakers, along with a bit of re-alignment.
I'm still surprised it works. Don't believe me? Here, watch this video.
The only gripe with it is the scan angle, it's pathetically narrow. The pattern's 15cm wide at 3m, and it *could* be better.
But for something that costs $1.50, I'm not complaining.