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ok. that explains it. i wonder if you could use a single laser, and split the beam a couple times after the first mirror before hitting more spinning mirrors? i really like the effect. i just don't have 11 spiros. :-/

that was cool! how was it done? more info please good sir!

the laser driver is in the middle, just right of the 9v. it was built on a small piece of perfboard and attached to the larger one. i intend (eventually) to make a smaller driver that will fit inside the laser housing. then i will replace the AA battery with a voltage regulator powered from the...

the ebay kits are reasonable. they will work fine. you might be able to go cheaper if you source the parts individually, but then you have to pay multiple shipping charges etc. the drivers are also fairly large, and designed to run on 9 volts. the flexdrive...

lol.  :P  it's called incense ... ... or cigarette  :-?

i think this is the model you speak of: dealextreme.com/details.dx/sku.15456 3w is a lot of power. usually these things are driven at significantly less than the rated power due to heat issues though. you should look into making a "time fountain". you create a consistent drip of a uv reactive...

thanks guys.  i did cut the mirrors myself, from regular glass mirror.  i had intended to replace them with first surface mirrors, but found they worked great.  i don't see any "ghosting" of the pattern.  the diode is running at about 50ma, and doesn't get warm at all.  i've cranked it up a bit...

i bought a phr diode off ebay on impulse a couple weeks ago.  while waiting for it to arrive, i found this site, and soaked up lots of good info.  i built a driver and lit the thing up.  it was pretty sweet.  i figured i should build a spiro with it.  i cobbled this together with parts on hand...