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Old 08-22-2009, 04:29 PM #1
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Default dvd burning lasers confused. i need help

ok, so i want to make a burning laser out of a dvd burner, but tbh, im completely confused now.

i was going to buy a laser diode off either High Tech DealZ, Simplifying the LASER Hobby! or StoneTek Electronics, Your Laser Parts Store as well as an aixiz housing.

do i need a laser driver? whats it do and how important is it really? i ask this because ive seen videos of people making them without drivers, like kipkay's video. apparantly i need a Laser Diode Driver Test Load too, so i can test it or something.. i thought it was just as simple as connecting the diode to a power source? no?

also, why do people use maglites? why not use a cheap crappy torch instead?

can i just make the laser by getting the diode and connecting it to some batteries?

thanks


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Old 08-22-2009, 05:21 PM #2
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Default Re: dvd burning lasers confused. i need help

Yes, you CAN make a laser by attaching a diode to a power source. But, this cuts it's lifespan significantly, and there is a chance the diode will break immediately from getting too much energy at once.
You need a laser driver because it regulates how much energy is being transferred from your battery to your diode. The driver gets soldered to the pins on your diode, and then the battery source will get solder to the other end of your driver.
You will need to have the current set so you can choose how long you want your diode to last, and how powerful it will be. To do this, you must purchase a Test Load driver, solder it where the diode would go, and make contact with a Digital MultiMeter onto your driver. Then you turn the knob on the DMM to the current you would like.
Drivers are incredibly important if you want a long laser lifespan. KipKay does not use one because he obviously did not care about the laser, and for all we know the laser died right after he finished his MagLite hack.
As for your MagLite question, I guess people use them because they are nice little builds. They are pretty difficult for a first laser build, though. Dorcy Juniors are much easier to work with, and preferred by a lot of people on LPF.

I hope this answered your questions. This is a lot to take in at once.
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Old 08-22-2009, 05:24 PM #3
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Default Re: dvd burning lasers confused. i need help

I don't want to make this an uninviting welcome, but let me start by telling you to read the FAQ's! It has the answers to most of your questions. As per building a laser in a MagLite, it is not recommended as there is not a lot of room.
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Old 08-22-2009, 05:25 PM #4
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Default Re: dvd burning lasers confused. i need help

thanks, if i get jayrobs kit, which i believe has a pocket host, heat sink, driver and module http://laserpointerforums.com/f39/fs...bly-22537.html will i still have to buy a test drive? and set the current and stuff? cause i really dont know how to do that.
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Old 08-22-2009, 05:37 PM #5
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Default Re: dvd burning lasers confused. i need help

In the link you just posted... Do you mean you want the first or second option on his page?
Because the "Pocket Mini" option does not include a driver, but the "HOT" option does, and he will set the current to what you want before he ships it.
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Old 08-22-2009, 05:39 PM #6
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Default Re: dvd burning lasers confused. i need help

yeah the hot option. but how do i know what current i want?
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Old 08-22-2009, 05:45 PM #7
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Default Re: dvd burning lasers confused. i need help

Well that depends on the diode you want to use. I believe you wanted to use a red DVD Burner diode, right? Is it a 16x Burner like this one?
Sony 16X DVD Burner Diode [SLD1239JL-54] - $19.99 : StoneTek Electronics, Your Laser Parts Store
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Old 08-22-2009, 05:48 PM #8
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Default Re: dvd burning lasers confused. i need help

yeah, but id probably go with the one from hightechdealz because they have the diode already installed in the aixiz housing and works out slightly cheaper. 650nm 20x DVD Burner Laser Diode in Aixiz Laser Module Housing [LPC-815 in Aixiz module] - $22.38 : High Tech DealZ, Simplifying the LASER Hobby!
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Old 08-22-2009, 05:55 PM #9
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Default Re: dvd burning lasers confused. i need help

I ordered one of those less than a month ago, except with a Blu-Ray laser diode instead. It was actually installed crookedly, and never emitted any light what so ever. I contacted him and he refunded my money, but it is your choice. If it works it is a great deal.
This is a 20x Red burner, which I believe runs well at 250mA. I'm not positive about that though, so you would want to get a more experienced member's opinion.
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Old 08-22-2009, 05:58 PM #10
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Default Re: dvd burning lasers confused. i need help

ill probs still get it from there, unless you can recomend a better place to buy it off.

was he easy to contact and willing to refund the money?
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Old 08-22-2009, 06:04 PM #11
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Default Re: dvd burning lasers confused. i need help

Yea I sent him an email and he promptly responded. He said he would refund it completely or send me a new diode. I had since then gotten a new diode anyways, so I just chose the money.
HighTechDealz is trusted on LPF though, and Kendall, who owns the site, is a really good guy. The messed up diode was probably just a one time thing.
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Old 08-22-2009, 06:06 PM #12
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Default Re: dvd burning lasers confused. i need help

ok thanks for all your help. im off to bed now, its 4 in the morning here :P
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Old 08-22-2009, 06:09 PM #13
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Default Re: dvd burning lasers confused. i need help

The owner at HighTechDealz goes on the forum often. His username is sk8er4514 , you shouldn't have any problems contacting him.
Also, the LPC sleds with 20X diodes should run at 420mA maximum. Of course you can go higher, but you need adequate heatsinking to match with the current.
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Old 08-22-2009, 06:10 PM #14
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Default Re: dvd burning lasers confused. i need help

Oh, wow. No problem. Well all you have left to figure out is what current you need your driver to run at, and a battery source.
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