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After watching many videos on youtube of people burning things with high power lasers, I wanted one.Those lasers can cost a lot of money though, something I don't have. So I made one, and in this instructable, I will show you how to make one for less than ten bucks. This is my first instructable, so if I did something wrong, please tell me. This laser outputs between 50-100 milliwatts(I think), and can burn electrical tape, light matches and melt thin plastic.I was messing around with this laser one day, and I shined it at a mirror,  and the laser shined back in my eye for a second. I heard a popping sound and I couldn't see anything for a couple of minutes. Now, I was LUCKY that I did not get permanently blinded, but if I shined it a second longer I probably would have been. Now with that said, NEVER point a laser at another person, animals, or any other living thing.

Okay, Now lets make the laser.

Step 1: The Parts needed

You will need:

1. A old DVD drive (free)

2. A LM317 ($2.00)

3. 10 ohm resistor ($0.10)

4. An Aixiz Module from here: ($5.00)

5. 6-volt battery pack from Radioshack ($1.99) 


Tools Needed:

A soldering iron (free)

Screwdriver (free)

Total Cost : $9.10

<p>WHERE DO YOU GET THE OLD DVD DRIVE??? I NEED TO KNOW!!!</p>
<p>You should be able to go to a goodwill or somewhere similar and find an old one. Or just buy a cheap one from Walmart. </p>
<p>Also, an old computer tower if you have one. </p>
<p>is there a place to buy the laser diode?</p>
<p>is there any substitute for the 10 ohm resistor, because i can find much that arent expensive. (I live in europe not america btw) thanks</p>
I think that a led lamp is good too. Just make sure that its resistant is 10 ohm. Or a wire with a higher resistant. Or dont use a resistor, but you'll fry your diode fast
<p>cant understand circuit daigram....?</p><p>how to join positive and negative connections.</p><p>and can i find laser dioed frm computer dvd drive?</p><p>pls help me </p>
<p>Is it safe to hook the laser directly to a small CR2032 battery, or is that enough to fry it? (The Chinese do it all the time.)</p>
If it works for the Chinese.
<p>Green laser pointers are perceived by the human eye as significantly brigthter than red laser marks.</p><p>Recently I bought this Brightest Laser Pointer, it's so bright, and it has many uses from experiments to demonstrations to emergency safety. Signaling searches in an emergency, 5 hours of consistent use per charge. <a href="http://patriotdeal.com/collections/all/products/green-laser-pen" rel="nofollow"> http://patriotdeal.com/collections/all/products/g...</a> Use this code</p>
<p>I opened up a radio/CD player, and found the 3 pin diode and tested it with 2 AA batteries. But when I attached the wires, there was no visible light coming from the diode. Is it possible this thing is in an another spectrum like Infrared ?</p><p>Please help ! </p>
<p>Yea, lasers in a cd player are infrared (invisible to the naked eye). You need to use one from a dvd drive.</p>
yes, cd uses infrared. only dvd players and burners use visible red light. blue ray player uses blue to uv I believe
Is there anyway to focus the laser to a beam or something like that because it looks like a blurry dot, but if im mistaken i ask if anyone can tell me.<br>Thanks guys
<p>I used a lense that I found in a dvd drive.</p>
<p>I got my laser to work, but it doesn't seem to burn anything. Suggestions ?</p>
<p>I'm a kid oh 12 years old, can i make it, i'm from india where can i find the parts </p>
<p>Please be careful Mayurnath5</p>
<p>you can find many electronic parts from eBay.in</p>
<p>Hello guys.</p><p>It is important to get the right old dvd, it has to be a Class 3b laser inside and not all dvd especially the new ones have lasers in lower classes. Look on the backside of the dvd drive a yellow badge shows what class laser it has. It has at least to be Class 3b, Class 1 is even not dangerous to the eyes. try this link: <a href="https://en.wikipedia.org/wiki/Laser_safety" rel="nofollow">https://en.wikipedia.org/wiki/Laser_safety</a></p><p>And a heatsink is also necessary or the laser will burn out in no time. </p><p>Sorry for bad gramma and spelling.</p><p>Have a nice and laserbright day</p>
<p>Sorry JesperK I don't have any confidence with the information from Wikipedia. I am a electronic technologist and even if I looked something up about electronics it doesn't always give me the right answer. The last time I was to my ophthalmologists for a eye exam I asked her about the danger of laser pointer and if I need safety. And she told me as long as I don't look directly into the beam I will be alright. But you can ask your eye doctor ,and if they tell you something different please let me know. Thanks </p>
<p>FWIW, quite a number of CD/DVD RW drives have a Class 1 rating on the sticker on the drive even though the laser diode they contain would, if not enclosed within the drive be a Class 3b. So, it is entirely possible and even fairly likely to extract a Class 3b laser diode from a drive labeled as a Class 1 device.</p>
<p>Yes, you are right on that.I have investigated a little and to my surprise I found a class 3b in a device labeled with class1.</p>
<p>How can I add a heatsink?</p>
To make a heatsink get an old heat sink from old grafikdrive or old amplifier drill a hole with dimension so the laserhead just fit in apply a little drop of heatpasta to the laserhead before puting it in the drilled hole, thats all.<br>The right laser is all about what class it is on the back of all drives is written what class it contains it has to be class 3b at least.
<p>Thanks!</p>
a10ohm register. I was wondering can this laser burn grass?
<p>Saw quite a couple of these instructional videos and everyone's saying to extract the diode and build a driver for it on another heatsink/casing.</p><p>But I just wonder why not just leave the diode as it is in the laser carriage assembly and simply power it up with whatever ribbon cables it is attached to? </p><p>Saves all the trouble don't it?</p>
<p>You have to modify it because you have to use much more power to the laser diode if you want to burn with it. so it have to be more cooled and another circuit to run the high power.</p>
<p>exactly what im trying to figure out why bother going out and buying a module or waiting 2 weeks for it to be delivered if i have a sled with a built in one right in front of me</p>
<p>I have been trying to accomplish a similar goal. Just wanted to know if you have found anything useful for powering the laser while it is in the assembly?</p>
<p>I have been trying to accomplish a similar goal. Just wanted to know if you have found anything useful for powering the laser while it is in the assembly? </p>
<p>what kaind of rezistor are you using </p>
<p>how is a soldering iron free??</p>
<p>Hi can you please help me? i have a question, I have bought this laser with driver on ebay &quot;100mW 650nm Red Laser Diode Module with Driver(Power AC7V or DC 7-10V)&quot; this is the info/description but I just think it is fake and this is not a really 100mw/650nm laser</p><blockquote><strong>Laser Color Red</strong></blockquote><blockquote><strong>Laser Power 100mW(&plusmn;10mW)</strong></blockquote><blockquote><strong>Warm-up <br>time (minutes) <8min</strong></blockquote><blockquote><strong>Power <br>Stability 5%</strong></blockquote><blockquote><strong>Operating <br>temperature (℃) 10~40℃</strong></blockquote><blockquote><strong>Size of <br>laser module (mm) &Phi;18*40</strong></blockquote><blockquote><strong>Modulation <br>TTL Leve 0~30K</strong></blockquote><blockquote><strong>Output <br>Beamdiameter(mm) 2</strong></blockquote><blockquote><strong>Power AC7V <br>OR DC7-10V</strong></blockquote><p><strong>Output Wavelength(nm) 650nm<br><br></strong></p><a href="http://www.ebay.com/itm/100mW-650nm-Red-Laser-Diode-Module-with-Driver-Power-AC7V-or-DC-7-10V-/252052633693?hash=item3aaf81f85d" rel="nofollow">http://www.ebay.com/itm/100mW-650nm-Red-Laser-Diode-Module-with-Driver-Power-AC7V-or-DC-7-10V-/252052633693?hash=item3aaf81f85d <br></a><p>This laser dont pop balloons or burn thngs, can I just replace the laser diode with the laser diode from the dvd/rw and it will work for burn things? I just want to pop black ballons</p><p>sorry for my bad english, hope you can understand me</p>
<p>I was thinking that with that PWM-OCM i could regulate the power and chose whether it burns or not.</p>
<p>Could I use a PWM I have from RMCybernetics (I used it for motor control with a Van De Graaff generator) </p><p> <br></p><p><a href="http://www.rmcybernetics.com/shop/PWM-OCm" rel="nofollow">http://www.rmcybernetics.com/shop/PWM-OCm</a></p><p>One of these</p>
<p>can you do a video for this? <br>It'd be really helpful! :')<br><br>cheers! </p>
<p>would it be safer to use if i had on smoked glass goggles or sun glasses? </p>
<p>also can your laser melt solder?</p>
<p>I opened up a few old electronics and now I've got one infrared, two red, and one blue laser. Will this instructable work with the blue or infrared lasers? I know I can't see the infrared, but could it still burn?</p>
<p>Could you use a 9-volt battery instead or is that too strong?</p>
<p>how do you get such a huge cylinder from a cdrom laser head ???</p>
<p>i made my laser according to the instructions but it won't burn anything and it is dim.</p><p>Could the dvd drive have been preused and is already kind of burnt.</p>
<p>Are you sure it's a DVD writer and not a DVD reader or a CD drive? Those are less powerful...</p>
<p>radioshack? why do you suppose all people live in USA?</p>
<p>well, most people know what radioshack is i would think. so you could most likly find a similar store close to you.</p>
<p>Okay everyone, I'm finally back on Instructables :)</p><p>Looking back at this instructable...reminds me of my early days :P</p>
do you know if a laser from a lg gsa-5169 dvd/cd burner would work for this project? I'm fairly new to this kind of laser fun, but I'm loving figuring it out.

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