I love love LOVE that you did a video on a project that DIDN'T work. That's such an important part of the process and I feel like people get discouraged when their projects don't work rather than just getting up and trying again, like your awesome attitude at the end.

@jerkycam

2 жыл бұрын

*Spoiler Alert*

@danieldusentrieb4082

2 жыл бұрын

😂

"Since this is exciting, dangerous, and has the potential to blind you for lifetime, it's perfect for KZread." Yup. Exactly my thoughts too.

@jerryt6340

5 жыл бұрын

Watching in 2019 and youtube was so much simpler back then

@Sandwich4321

5 жыл бұрын

So basically styropyros channel

@layton3503

4 жыл бұрын

I went blind watching this video. Right here 3:33, in case you want to try.

@spyderdyneincorporated6600

3 жыл бұрын

Yes!

This engineer is terrific. He knows design and process for electronic circuits very well. He is concise, and accurate with his facts and process. His videos are terrific!

@claireclark2076

8 жыл бұрын

+Jonathan Knirsch Terrific is a positive thing.

@domasselezenevas4007

8 жыл бұрын

+Claire Clark Yes...

@Dyl_Cam

7 жыл бұрын

Well don't blow your load bud, jeez

@johnelbertmamonong969

7 жыл бұрын

tom and jerry

@annelieseocallaghan801

7 жыл бұрын

He's also hilarious.

2:04 Carefully removed the diode....flies away 5000 meters

@TommyGx69

7 жыл бұрын

*PEW*

@solaris7404

7 жыл бұрын

Hey R.D. Hows it going?

@BloodyRainRang

7 жыл бұрын

Just like Tommy said, "PEW" was exactly what I was thinking too at that moment xD

@magicdev2192

6 жыл бұрын

LOL😁😁

@pavanpratapsinghchauhan6804

6 жыл бұрын

in electronics it is counted under carefull

I just loved how he said it is perfect for KZread lol

@ebrocoliphoto

3 жыл бұрын

LOL

@obviouslytwo4u

3 жыл бұрын

And failed so was definitely following suit

I had to 'like' this video after hearing 'See a screw, remove a screw'. lol

@mikescherer9196

7 жыл бұрын

the

@durlav1n1

7 жыл бұрын

same lol

@boblewis5558

7 жыл бұрын

When stripping for parts it's a great maxim ... unless you're actually after sub assemblies. :D

Loved your comment at 2:05 " .... and carefully removed the two diodes ..." And then you take you pliers - jam them behind the diode - and it goes flying off the screen !! LOL !!!

WHY DID NOONE TELL ME THERE IS FREAKING NEODYMIUM MAGNETS IN A DVD BURNER?

@spoderman15

8 жыл бұрын

well now we know I guess. I need to find a junkyard around where I live, the stuff people throw away would give electronics enthusiasts nightmares

@Spirit07700

8 жыл бұрын

+sans you can't find neodynium magnets since dvd players roughly. i'm sure i'm wrong but in some old CD players i've never seen them. Or i was really blind.

@leekshooter4825

8 жыл бұрын

neodymium is pretty fun... as long as you don't need surgery to remove them from your face when you try to be an idiot with them.

@Tom-dy5ub

7 жыл бұрын

YEAH ME TOO!

@boblewis5558

7 жыл бұрын

Actually gives me cause for puzzlement but otherwise HIGHLY delighted that they do. I could spend a week at our recycling plant saving a fortune in bits, pieces and perfectly usable components Just today picked up two fully functional Makita drills, both two speed and one a hammer drill also. Well used but otherwise look in pretty good condition, only missing batteries - big deal - get on eBay for less than £25 for TWO!. Don't need the standard chargers as they f**k up batteries big-time. Have my own which doesn't! Also collected three PC's c/w psus and some older DDR400 memory (I needed some for an old shoe-box PC too), a few DVD RW drives (hence being here) LOADS of SMD components I can recover off these if the boards don't work. Amazing stuff people chuck away. A few fans (I always refurbish fans whenever I can. A few drops of 3-in-1 oil onto the bearing from behind the stopper - or sticker - work it in and bingo. I have one fan that I've re-lubed twice and it's still going after 16 years!! Quiet too.

"and has the potential to blind you for a life time" said with such enthusiasm I died.

Don't know how I haven't found you untill a week or so ago, but so very glad I have! makes me want to get into playing with electronics all over again! thank you sir!

@darkprincesayan

7 жыл бұрын

Welcome to the GS fandom!

@GoGreenMan

7 жыл бұрын

rainbowfrog yeah and now I'm sitting here gathering pieces to follow his diy bench top powersupply!

I appreciate your failed attempts at worthy projects. They show humility and design acumen. It’s awesome to watch a video more concerned with the process than the outcome.

They make precision voltage references for small amounts of current. Basically you can use it similar to the schematic with a few changes. Constant voltage across a resistor = constant current. The precision voltage references are used in IC's like LM34 and LM315. The LM1117 is a low voltage high efficiency voltage supply that would be ideal to run this kind of application in addition with the voltage reference and a battery pack. Nice application and tutorial.

Thank you! Love your professional videos & work. I just had a question, how many (total volts) was the laser diode consuming?

"Carefully removed the diodes" flies across the table xD

@nicewhenearnedrudemostlyel489

5 жыл бұрын

"Repeats most popular comment" hopes people will like it more so they'll think he did it better. lmao. loser...

Best diy tech channel I've seen keep up the work you got yourself a new sub

Every youtube electronics channel teardown: I'll save this motor for a future project! Future project: Never needs a motor.

This actually works, I tried it:)

I'd like to see "DVD drvier to Mini Desktop Engraver" man. Love your clean English by the way!

@Colaaah

4 жыл бұрын

What nationality do you think he is?

@einflinkeswiesel2695

4 жыл бұрын

@@Colaaah he is german

Omg I remember these old projects it's so weird to see them again nearly a decade on

The Technics SL-P1200 CD player had a particular point of failure in the CD door switch. The switch was a blade that contacted copper fingers, meant to prevent the player from operating whenever the door was open, because potentially a user could look right at the laser. But it was a crude design, so we had to replace them regularly.

2:04 - that was very "careful" :D

I would think you could use a high current pulse to drive the laser much harder. You can do this with infra red LEDs when you need to send the light over a longer distance. The data sheets will tell you how much current and for how long of a pulse to use.

Love how you chose to explain why setting up the diode with constant current is better.

@odsutton5006

4 жыл бұрын

Only if using projected heat .thats contained and distributed through camera iris or shutter. At point of exp ells ion with on off switch. Or trigger

Great explanation of the disassembly of the CDrom device. I now know what other parts I can pull out of them.

Warning label: Don't do that! Me: That's adorable...

You can also salvage hard drives for neodymium magnets :-)

Great Video! Hope you will continue this series ;)

I tried this myself before which also resulted in disappointment, but your solution was much more elegant!

Just searched for ages, the other song in this video is: Phase Three - Huma Huma

Awesome Non Functioning project :-)

When I was a teenager I thought about how cool that would be to do. Thanks for answering that question by showing how nothing visibly interesting happens.

Good video! The warnings are much appreciated.

You have the same did reader and burner as my pc

Hi, woher hast du dein Labor Netzgerät? Danke im Vorraus.

@kylebrooks8162

7 жыл бұрын

Hallo, ich studiere deutsch. Why didn't you use a verb in that sentance besides haben. I know that youre using past tense but there wasn't a second verb. I was curious.

@danielheidorn

7 жыл бұрын

i never thought about this, but i guess this is a really often used slang term: www.duden.de/rechtschreibung/herhaben So "hast" is not really past tense but rather "Indikativ präsens"

@Benedicc

5 жыл бұрын

@@danielheidorn Das ist doch kein Slang

GreatScott is basically my hero.

GreatScott! I am an electronics amateur and I know the high power laser diode is not that price cheap, I mean the one you can put something on fire. You proved fake things all around in youtube. I love your video - clear and professional.

Can I mount this on a shark?

You should use a Bluray diode if you can get your hands on one. They're damn powerful.

@greatscottlab

9 жыл бұрын

Jordan O'C OK, I still want to ignite that damn match. I hope to get one someday.

@Xenro66

9 жыл бұрын

GreatScott! I would say "pump more power into the DVD laser diode", but that would probably burn it out. xD

@greatscottlab

9 жыл бұрын

Jordan O'C I think so too ;-)

@JoshuasRecordings

9 жыл бұрын

Jordan O'C I once got a Blu-Ray diode, but lost it.

@AdrasHoriaGaming

9 жыл бұрын

Jordan O'C who's willing to break one of those tho ;/

I hit the like button because I appreciated the honest reporting of a disappointing result

Hey Greatscott! For what wavelenght did you buy your glasses? As said LED are around 780nm but what about the laser diode?

If the forward voltage of the diode is less than 3V, then it is the IR diode. It still gives off visible red light at, so beware - you can easily blind yourself, thinking it is just a dim red diode.. An LM317 is sufficient if you keep the input voltage not far above 7V. 500mA is too much for an unknown diode. Don't go above 400mA MAX (even this is pushing your luck), and the 1/4W pot will handle it fine if you put an appropriate series resistor before it (the voltage drop over the pot will be low (P=V*I) . Disconnecting the diode from the constant current source and reconnecting it while under power will kill the diode.

@greatscottlab

9 жыл бұрын

Forssa1 I also powered the IR Diode but it did not emit any visible red light though.

@Forssa1

9 жыл бұрын

GreatScott! Maybe you are not as sensitive in the near IR as I am, or you powered it wrong or even killed it before it got a chance to laze.

@greatscottlab

9 жыл бұрын

Forssa1 Sure

@greatscottlab

9 жыл бұрын

Patrick Yoon Could you stop trolling now?

@neutrino9738

9 жыл бұрын

There are at least two different IR diodes 840nm and 910nm the 910nm should not give any visible light (at least for regular diodes tho not laser ones)

muito bom pode evitar o esquema pra meu email ,se seus vídeos fossem dublado em português Brasil seria um sucesso .Boa sorte

For the future, there were likely 2 additional neodymium magnets that you may have missed...depends on the drive. They are REALLY TINY magnets, too...about 3mm L x 2mm W and less than 1mm thick. They should be attacked to a small movable coil that further stabilize the LASER beam emitter based on optical feedback from the disc. This helps the drives achieve much higher speeds than before.

'Arnie makes a video' But at least it saves others wasting so much time with hacking the old laser diodes from computers, so a worthy video.

"see a screw, remove a screw" my tactic

we he said " you can be blind instantly " i knew this project was not for me lol

@davidmallo8815

7 жыл бұрын

me too😂😂😂

@Wilson84KS

6 жыл бұрын

Yes, you need to be extremely careful, those protection glases should be a must, as I experimented with it I broke the lens in the diode and the laser light came out just everywhere out of the diode and for a short time I got a little into one of my eyes, my heart started to beat like crazy, it was really a shock but I had luck because probably the laser isn't powerful enough without its lense. I can just say to every beginner: Do not touch it if you have any doubts, except of you have all that is needed to protect you, no matter what it's about.

I was looking for some other site and seen your home made stereo box ,so I watched the video ,anyways I could watch this all day my grandfather was an inventor one of the things I was told he invented was the thermostat inside your furnace ,my dad. invented lots of different types of tools for sears and my uncle's are inventors also they do the same things you do thanks for your time and videos I subscribed ,love it .

hi scott! i really like your videos, thank you. did you ever make the video showing the more efficient constant current circuit? i need to make one and would love to apply the less power hungry option.

Laser 1 - Scott 0 :( BTW will the CD burner diode works? Keep up good videos!

@greatscottlab

9 жыл бұрын

~☆ XzCraftP ☺♂ I think CD burner do not work. But I am not sure.

@kyoudaiken

9 жыл бұрын

~☆ XzCraftP ☺♂ BluRay Burner diode will do. :D

@greatscottlab

9 жыл бұрын

ardystal gysr I just found another laser diode and ignited a match with it. I will upload a video tomorrow on my second channel.

@agonymobile

9 жыл бұрын

GreatScott! 230ma is the nominal current, anything above you'll risk damage the laser and it will turn to a very weak laser, even a short over current mistakes like adding 0.01uF might 🔥 burn it.

@Charvin91

9 жыл бұрын

~☆ XzCraftP ☺♂ It does work. A diode from CD-RW will burn matches easily. But since it is infrared, it's very dangerous because the beam is INVISIBLE. Around 180mA will do just fine.

"carefully" 2:04

mit wie viel Spannung betreibst du die konstantstromquelle die du gebaut hast ? ich würde mich freuen wenn ich eine schnelle Antwort bekomme :D bau das nämlich nach für die schule ... als Projekt für die Vorarbeit meines Abiturs... danke schon im voraus

I also did the same previously And found all these components Cool video!

Kind of a bummer. I always thought it would be useful to take the laser diodes out of these old optical drives and use them to solder SMD's....

@Colaaah

4 жыл бұрын

I was wondering if they would be good to cut think foam?!

@brunocabral1578

3 жыл бұрын

@@Colaaah me, if it can remove black ink from PCBs - laser etching

Make in a new build project a fog/smoke machine! Like this commant when you want it to!

@karolisjuoz

9 жыл бұрын

***** its very simple components water pump heater licuid and some pipes

The demonstration of the safety glasses was quite interesting. Like how the voltmeter turned black and the numbers on the 7segs completely vanished.

Congratulations for 1m subscribers

try it with a DVD burner they burn things

@the-bgrspot6997

8 жыл бұрын

DVD microwave... lmao

are you a german ?

@greatscottlab

8 жыл бұрын

+Melzob yes

@flocki190601

8 жыл бұрын

nice

@moritzbtg

8 жыл бұрын

Hab ich mir auch als erstes gedacht. Das hört man einfach

@lennyleistung1998

8 жыл бұрын

Hab ich auch gedacht

@MarkRobertCuthbert

8 жыл бұрын

+GreatScott! Subbed & Thumbed up for the effort you put into making this video. Also your "German humour" lol but I thought you might be Austrian as you sound a bit like "Arnold: I'll be back" Greetings from Ireland, Sláinte! ([to your] health!)

Du machst echt saucoole und informative vidz. Danke dafür. Echt thumps up und liebe Grüße aus Wien

Hi Scott. Great video! Which kind of program do you use for project on strip perfboard? I use fritzg or Eagle.

So we learned that it's waste of time to open a dvd-rw better go buy a laser diode and do your project :D

@greatscottlab

8 жыл бұрын

+Domino SixO Take a look at the first link in the description.

@DominoSixO

8 жыл бұрын

GreatScott! What exactly should I look? I see a lot of stuffs there

@CIubDuck

8 жыл бұрын

+Domino SixO "take a look at the FIRST link"..

Just get a PS3 laser assembly Their cheap on ebay and they has the bluray laser diode.

@neutrino9738

9 жыл бұрын

Will it work even as ps laser lacks burn capability?

I just watched this video and immediately dismantled 7 of the 10 dvd drives I had sitting. I would love to see a tutorial on how to use multiple diodes simultaneously, I would imagine that many others may want to do that also.

Great video. How fast can these laser diodes switch on/off? I have a laser I bought from eBay that has its own little circuit attached and is nice and bright. But when I try to switch it quickly (for a laser harp build) it just doesn't illuminate . Is this due to the extra circuit that came with my laser or just a limit of the diodes?

Why would you paint the match head black?

@eurenton99

7 жыл бұрын

Dark colors absorb heat better.

@shmeet

7 жыл бұрын

Yes it does, but it may also have made the match head too wet to ignite. I would have like to have seen you put a new unpainted match in front of the new diode. Oh well.

@shmeet

7 жыл бұрын

PunakiviAddikti Still, it is something being placed between the match surface and the laser.

@shmeet

7 жыл бұрын

PunakiviAddikti How does it manage to manipulate the material on the disc if it's so weak?

@kv-2743

6 жыл бұрын

to maximize absorption of light to increase the heat being generated on the surface of the matchhead.

So I watched all of your video and it didnt work... you owe me six minutes dude!

@greatscottlab

8 жыл бұрын

+Phil Waud Check the link in the description. It did work after all.

@PhilWaud

8 жыл бұрын

GreatScott! OK, but not in this video.. Thanks anyway, dont mean to complain.

@greatscottlab

8 жыл бұрын

+Phil Waud No Problem

@winstongrundy7289

6 жыл бұрын

Dats right if it didnt work then it didnt work

@evo71

5 жыл бұрын

I watched until the end wondering how the laser diode could possibly still function after the way he was treating it. Turns out he broke it after all.

for an episode of hacked you could build a dvd drive mini laser engraver/plotter. You could use 2 dvd drives (already got one from the drive you took apart for the laser), a servo (for the plotter, if you go that route), 2 stepper drivers and a arduino, it would be a fun project to see

Nice video. I need a constant current source around 1 miliamp and made it with a LM317.I did not know this was an inefficent way to do it, so I will be looking out for your more efficent constant current source. Thanks.

did he mean to rhyme the whole time?!

@quint3570

7 жыл бұрын

KaelinatorPVP he's a poet and he dosn't know it..

@master_moose6836

7 жыл бұрын

Steve Adams So are you, cause ya rhyme too

@Qwrtyuiop

7 жыл бұрын

KaelinatorPVP That rhymes

@tpmadness1172

7 жыл бұрын

Kaelinator ur a poet and didn't know it.

@BrianEvans766

6 жыл бұрын

Joseph Peavey green eggs and ham your bitch is gettin my jam

as I cm watching this it has 777,888 views illuminati confirmed

Thanks for the awesome video Scott! Your videos ignite the interest in me to study electronics engineering in the university! :)

@greatscottlab

9 жыл бұрын

Yonatan Vologdin Awesome!

Wow I've never seen a video that so completely went over my head

Well if the laser diode is blue then it is a blu-ray drive.

U german?

@1RCHunter

8 жыл бұрын

+Toni Montana look it up in the channeldescription :)

Love your videos! So smart.

i like this channel a lot .. good work dude

OMG ROTARY TOOL DRILL PRESS??? I didn't know such a thing existed! And they do! OMG thank you!!!!!

thank u for busting all the myths of dvd burner laser!

This is awesome! Thank you!

EXCELLENT VIDEO GREAT COMMENTARY!!!

You have a new subscriber!!! GreatScott!

Good work Scott...

The red laser diode is for reading while the ultraviolet or blue ray diode is for writing which can also be used as a burning laser.

i had that pc ! all the memories!, I also used the dvd burner for another case

you are the best!!! Its the best tutorial ever on this!!!

GREAT SCOTT! It's Emmett Brown!

lasers will have a focal point of concentrated energy.. did you try adjusting the distances and wait a few seconds at each distance to see where that is? It's probably fairly close up, since it is used to scan disks at close proximity

Nice honest video. Thank you

Could you recommend a source for safety goggles for lasers in the 405nm wavelength? I plan on enclosing this laser as well, but I would love some help knowing what is good and what isn't. Thanks!

At least you tried! Anyway very nicely done :)

THANK YOU KZread SUGGESTION FEED!

I bought an £8 laser from eBay, that worked wonderfully at lighting matches etc

0:12 best quote i am graduating high school in a few months and we have to pick a quote said by anyone as long as its a quote, I am picking that LOL

Awesome videotutorial. Good job.

Hey Scott, how about making one of those LED "infinite" reflection illusion mirror guides. Maybe as a small tea table?

Two questions: arduino can't supply the constant current in a PWN pin using just a resistor in series? And what do you think about LM334 and LM741 constant current circuits instead of using LM317?

Awesome! would be used to cut paper and make a CNC machine?

DANG! that was such a informative and disappointing video. Ripping apart old HDs and CD/DVDs. Saw the laser and got excited!!! A Google later and GreatScott! FANTASTIC! ...oh well. Thank you, saved me gobbs of time. You are the BEST!!!

Actually, how I look at this "infrared diode" through the gap, she looks like Mitsubishi LPC815 (red open can laser diode). Have you tried to free both diodes or just the "burnt" one? (And yes, I know that that was 5 years ago, but I'm just interested :P)

Need to buy some precision soldering kit. Love this kind of stuff and have bunch of components already. Hope the laser diodes are still okay.