Old 08-06-2008, 06:06 AM #1
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Default spirograph guidence needed

i want to build a spirograph and i want to use cheap computer fans that have an adjustable speed, i don't know if i can or how i would hook them up to a power source, so if someone could post a link to a website that i could buy 2 or 3 fans from that would work, that would be great!

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Old 08-07-2008, 10:10 PM #2
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Default Re: spirograph guidence needed

Look on ebay, I got a four channel speed adjustor for about $10 (you can see it at the back of the photo).

One thing is though, they do not do a very wide speed range....

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Old 08-07-2008, 11:22 PM #3
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Default Re: spirograph guidence needed

do the fans hook up their power through the speed adjuster or through something else?
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Old 08-08-2008, 06:02 PM #4
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Default Re: spirograph guidence needed

12v and 5v input connects to the large connector to the right of the control panel, the fans connect to the small 3 pin headers on the left....I added switches to turn fans off individually.....

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Old 08-08-2008, 06:57 PM #5
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Default Re: spirograph guidence needed

Where do you guys get all these spiffy acrylic mirrors? (slovenia is like the anti-DIY capital of the world, had to treck across the main city of ljubljana for 2 hours looking for some damn black foam to finish up my portable laser carry case... >)


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Old 08-08-2008, 07:48 PM #6
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Default Re: spirograph guidence needed

Quote:
Originally Posted by rog8811
Look on ebay, I got a four channel speed adjustor for about $10 (you can see it at the back of the photo).
One thing is though, they do not do a very wide speed range....
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Old 08-08-2008, 11:17 PM #7
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Default Re: spirograph guidence needed

Here you go, worldwide delivery for free

http://cgi.ebay.co.uk/High-Quality-4...3286.m20.l1116

Remember you will need a dual supply for the 12v and the 5v, the one below should work

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