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xatrix2006
4.99mW Green Laser Toy
Joined: 06 Feb 2008
Posts: 1
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 Posted: 2/06/08, 10:14 AM Post subject: cheap chin |
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hi, i have one of those cheap red lasers (about 1$)
my question is if enyone know how to supply from paralel port of my pc
thanks
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Jonazzaz
Guest
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| Posted: 4/09/08, 7:54 AM Post subject: |
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USB powered?
I dont know if thats possible 
Well, probably its possible, but extremly hard
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staminanerd
Fusion Laser
Joined: 12 May 2007
Posts: 270
Movie(s): 3
Location: Monte Carlo
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| Posted: 4/09/08, 8:07 AM Post subject: |
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No not extremely hard. I've got some chinese USB cable that can recharge my PSP (USB 2.0, 5V) The output current is really low on this as it takes ages to recharge my device.
Then use the first step of this only shorter (use a smaller screw, make sure you use a magnet) and put the wire connected to the spring to the outside of the DC and the other one to the inside. Use a insulated single strand iron wire.
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spark001uk
25mW Classic Wicked Laser
Joined: 28 Dec 2005
Posts: 29
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| Posted: 6/11/08, 7:01 PM Post subject: |
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| yeah you won't get power from a para port, it'll have to be usb. I'd take an old usb cable and chop it, wire the black to the spring (could be tricky, you may have to cut the case down a bit if you can't reach), and the red to the case. Just scratch the casing a bit first to expose some bare metal. If the pointer takes 3 batteries which they usually do, that's 4.5v so i can't see 5v killing it.
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spark001uk
25mW Classic Wicked Laser
Joined: 28 Dec 2005
Posts: 29
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| Posted: 6/11/08, 7:01 PM Post subject: |
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| yeah you won't get power from a para port, it'll have to be usb. I'd take an old usb cable and chop it, wire the black to the spring (could be tricky, you may have to cut the case down a bit if you can't reach), and the red to the case. Just scratch the casing a bit first to expose some bare metal. If the pointer takes 3 batteries which they usually do, that's 4.5v so i can't see 5v killing it.
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