DIY: Make a $3 Laser Diode Driver!
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Uploader Comments (styropyro)
Top Comments
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@styropyro hey styro whats up i got my laser out of a 16x dvd burner its red. how much mA do i need? or how do i find out?
2 months ago 5
All Comments (224)
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@nrz666 Use with 3 AA batteries will receive 3.6
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@styropyro Thanks for the explanation, in the country I live in no one even knows of RadioShack. We've got "Radio House", "Radar" and a big radiomarket far away. :D
Anyway, will 4.5V supply suit the build or is it necessary to power it from 9V?
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@stypopyro Hi, got a question. I want to power my build from 3 AAA batts. So it's 4.5 volts. Diode consumes 3 volts. Another option is to power it from 9V battery. Will LM317suit the build with 4.5 V (as its nominal voltage is 1.25 V) or is it obligatory to choose another option?
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can you show me the easiest way to create a laser with the least amount as parts needed i want to do this but dont want to buy parts from anywhere other than ebay LIKE IF YOU AGREE
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Can I Use Any Laser Diode ? Like The Normal One Selling At Shop ? And Just Make A Driver . Will It Work Like Yours ? Burn Stuff Light Matches . Please Reply . ^.^
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@DavidMcDze Lol four others are is ignorant as i am
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@ducoducere you go it bro but for some reason i cant find how to msg you!!
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After all I got all the parts and now have another question: why "$3 driver" is on title?
LM317 - 47¢
Resistor - 4¢
Cap - 4¢
Total - 55¢, nowhere near $3.
nrz666 4 weeks ago
@nrz666 I say in the description that the driver cost me 40¢. The $3 figure is for buying the parts at RadioShack which I figure most of my viewers would do.
styropyro 4 weeks ago 2