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Problems with laser...

Post about things you have launched or thought about launching. Also post about various materials used for building cannons. No posts about explosive projectiles!
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Problems with laser...

Unread postAuthor: wangpushups » Fri Nov 30, 2007 11:05 am

The fresh batteries drain within like 2-3 days and i'm not even using it. I was thinking that maybe the reason could be because its wired to a momentary push button but i dont know. I got the plans on burntlatke. http://www.burntlatke.com/laser.html Any suggestions?
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Unread postAuthor: Ragnarok » Fri Nov 30, 2007 11:09 am

You've obviously got a current drain somewhere. And until we get pictures of the problem, it's hard to know where.
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Unread postAuthor: jimmy101 » Fri Nov 30, 2007 12:13 pm

It sounds to me like you have a small (moderate resistance) short somewhere in your wiring.

Do you have a volt-ohm meter with an amp scale?

Wire the meter (set to read amps) in series between the batteries and laser. When the laser is off there should be no current flowing. With the laser on you should be getting perhaps tens to hundreds of milliamps flowing through the meter.
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