spirograph guidence needed

laserlover · Aug 6, 2008

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!

-laserlover

rog8811 · Aug 7, 2008

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....

Regards rog8811

laserlover · Aug 7, 2008

do the fans hook up their power through the speed adjuster or through something else?

rog8811 · Aug 8, 2008

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.....

Regards rog8811

brtaman · Aug 8, 2008

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...

)

brtaman

daguin · Aug 8, 2008

rog8811 said:
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....
Regards rog8811

I LOVE this list!

I had no idea these existed.

Go ahead . . . .make my job easier!

Thanks, Rog

Peace,
dave

rog8811 · Aug 8, 2008

Here you go, worldwide delivery for free

http://cgi.ebay.co.uk/High-Quality-...6872230QQcmdZViewItem?_trksid=p3286.m20.l1116

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

Regards rog8811

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