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Here's my first try at a DIY red

K

Kenneth_v

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Jan 22, 2008
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I figured I'd do a box one for my first try.

It works great, burns matches instantly at about 5 feet.

I decided to go with a 7.2v lithium camcorder battery.

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Nice, is that a senkat diode? What current are you putting into it? I was going to use that same box for mine, but all those little plastic things got in my way. I ended up messing up the box by trying to cut them off and melting them. ;D
Oh, and where'd you get your pot?
 
Yes, it is a senkat diode.

I ground down the things with a dremel, as well as cut the holes.

I kept it down to around 180mA because of the bad press lately on the last batch of diodes, but gave the pot a slight turn this morning!!!

I ordered the pot through a local electronics supplier, it is a 100 ohm 18 turn pot so lots of adjustment room!! I can get you more info if you want
 
Nice Job! Glasd to hear you got it working. Lots of fun huh?  Now you just need some safety goggles if you don't have them yet,  before you start seeing red spots.  I got a Senkat diode a couple weeks ago and its running around 247 mA, and burning strong for over an hour of runtime.  But then again, $20 isn't that much for me if I need to buy another.
 
Ok, thanks but I think I'll stick with radioshack's big @$$ rheostat. ;D
 
He..he..I like the big Radio Shack rheostats too for my labby.

Kenneth_v, it looks like you now have the laser bug... ;D Congrats on your first laser.. :)
 
hey gazoo my little brother has a buzz light year costume, i am taking out the led and put a 120mw laser in there, sorry for thread jacking ken
 
toked323 said:
hey gazoo my little brother has a buzz light year costume, i am taking out the led and put a 120mw laser in there, sorry for thread jacking ken
Click to expand...

Well as long as he doesn't hit anyone in the eye with the laser, it should be pretty cool.
 
yea he's pretty smart he always takes his pair of laser goggles when i or him start playing with lasers, but he's only 3 yrs old, but very smart about not doing stupid things
 
thats the idea :P them laser companies should pay us for all the free business we get them...
 
chido said:
Oh, and where'd you get your pot?
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I got mine from the local drug store, how about you :P ;D ;D ;D ;D ;D ;Djk
Anyways congrats on your first DIY laser!! BTW how ae you gonna charge the battery? You can't just shove volatge into it, or it will explode.
 
I am using a triton electronic charger for my radio control stuff, it is designed for LiPo, lithium ion, lead acid, NiMh, NiCad and has a heat sensor as well.

I just made a lead that will attatch to the charger and has the male connector to fit the battery connector
 
With this battery I did all my testing on the breadboard, the pre assembly testing of circuit board etc, I've popped about 50 baloons, lit about 50 matches and the battery is still measuring 7.3V. If it keeps holding a charge like this, I might not ever need to charge the battery!!!
 
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