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Old 03-26-2010, 01:10 PM #17
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Default Re: Sound controlled laser spirograph?

Hadn't thought of that. Does DX have any sound controlled spiros?


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Old 03-27-2010, 08:54 PM #18
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Default Re: Sound controlled laser spirograph?

Look for a defective laser crab- I got one free that only had a loose battery wire- going to trade-out the red diode for a green module and mount it to a AL plate- maybe some dichros and a BR & LCC & a third motor/mirror later on. A lot of the work is already done.--HZ
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Old 03-27-2010, 10:54 PM #19
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Default Re: Sound controlled laser spirograph?

I will. Thanks for the tip.
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Old 09-22-2010, 08:49 PM #20
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Default Re: Sound controlled laser spirograph?

Computer amps work great for scanners. I've used them with the Radio Shack motors:
http://www.experimentalexperience.co...liquid_sky.jpg

And I plan to do the same for spiros...

The impedance is very low on those motors, so I had to add power resistors or capacitors in series. Can anybody recommend some 4 to 8 ohm DCR motors? This would reduce heating of the amplifier and be compatible with crossovers intended for 4 and 8 ohm speakers. (And lack of heating issues with power resistors.)
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Old 09-23-2010, 08:16 AM #21
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Wink Re: Sound controlled laser spirograph?

Quote:
Originally Posted by Experimental Experience View Post
Can anybody recommend some 4 to 8 ohm DCR motors?
Pagers and mobile phones vibro motors are usually rated for 2 to 6V (being planned for work in Li-Ion powered apparates), and for the same reason, usually have also low currents ..... they are not power motors, but after all, you need just to move small mirrors
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