I heard a laser could shut down cameras. How do I know if one is used on my cameras to protect my house.

Question by Rainbow1946 9 years ago  |  last reply 9 years ago


After reading this, and then this, I started thinking of how easy it would be to make a burning laser. I went to Radioshack, got some components, and started thinking. One thing that Stephanie's laser didn't have is a potentiometer, to control the power of the laser. Well, I ended up getting 12 assorted pots at Radioshack, but didn't know what one to use. I want decent control, too. What size (in ohms or k-ohms) do you think I need? I'm spotty in my electronics knowledge. PS- The size in ohms on the pot is the pot's range, right? If it says 100k, it means that it will resist from 0 to 100 kilo ohms, right?Also, in the shematic below, I don't know if the pot is connected correctly, post a comment if it's wrong.

Topic by John Smith 11 years ago  |  last reply 3 years ago

Laser scanner laser diode

Can I extract a laser diode from a scanner. If so will it be as strong a if I got one from a DVD burner/player?

Topic by laserblast 10 years ago

In a laser, how many nm = a mw? Answered

Question by transuranic 8 years ago  |  last reply 2 months ago

will a high intensity led work instead of the laser?

Question by scotty_too_hotty777 10 years ago  |  last reply 9 years ago

I wonder how to make the easiest regular laser?

I am trying to make my own easy handheld laser, but other stuff is just not working.

Question by 10 years ago  |  last reply 10 years ago

can any one pls tell me the limitations of laser alarmsecurity system...

 i;m thinking to make a security system using UV instead of laser.....................can any one pls tell me its proper operation and d drawbacks of laser alarm security system............

Question by engineeranshu 9 years ago  |  last reply 9 years ago

If you cant get the lens cap off a laser what do you use?

The top cap where the laser lens are will not come off

Question by 10 years ago  |  last reply 7 years ago

Laser soldering

So im making a  laser spirograph ( and i just got my laser diode to come out of its case, and i was wondering where i should solder the red and black wire as it does not look like the one in the 'ible. the laser diode looks like this one here http://10mW 532nm Green Laser Module (3V 11.9mm)  (i would take a pic of the diode but i cant find my camera!) the only difference in the diodes is that mine has a black button instead of the red. Oh and one more thing is that it has to bypass the use of the button. Thanks in advance!!!!!!!!

Topic by Mr. walrus 7 years ago

ignition lasers

Does any one happen to have an oxygen Iodine Laser by any Chance?? If so tell me how u made it...tnx a bunche...

Topic by pyreoutof 10 years ago

cutable laser?

I know scientist have created lasers that can cut but how much money would it take to make one? and what materials would be need? and... what kinds of materials would be laser resistance, not effected by a laser... or would that depend on the lasers stength?

Question by saiyankev 6 years ago  |  last reply 6 years ago

DVD laser?

Could I use a DVD player laser as a pointer? (IT CAN'T BURN ANYTHING!)

Question by alexw2150 8 years ago  |  last reply 8 years ago

conwerting a laser

I have a guide line laser want to convert to laser cuter if it is possible need help the laser is CARTER MODEL#LGL-100S SERIAL#573 MFD JAN 1982 THIS LASER PRODUCT COMPLIES WITH DHEW/BRH RADIATION PERFORMENCE STANDARDS 21CFR SUB-CHEPTER J 120VAC

Topic by drgeorge 10 years ago

will this laser burn?

i can get a green laser with: Output power: 50mW, wavelength: 532nm it appears to be a nice laser but im more intrested if it can burn stuff. will it? Thanks , Hackoslash

Question by Hackoslash 8 years ago  |  last reply 3 years ago

Laser help

Does any one know how to make or where to get a Argon Fluoride discharge pumped excimer laser or a laser with a 193nm output? I do believe that they are used in dentistry.

Topic by Masterdude 9 years ago  |  last reply 9 years ago

Laser diode

I need a laser diode from 18x or more dvd writer or blue-ray writer.please help me.I dont have a credit card to buy them from e-bay

Topic by Rhsameera 9 years ago  |  last reply 9 years ago

ebay laser?

I bought an ebay 3.2vdc laser and want to power it with a 5vdc wall charger, will it work or do I need a resister? if so what size?

Question by jamesv37 3 years ago  |  last reply 3 years ago

PVC Laser? Answered

I don't know if anyone on here knows hot to make a laser, but if you do can you make a CO2 laser with PVC instead of glass or do you need glass to direct the beam and such. 

Question by 8 years ago  |  last reply 7 years ago

Laser cutter

I was wondering where people in the UK get there laser cutting done? Every other instructable worth doing seems to be done on a laser cutter. so where might i be able to get some work done?

Topic by stupidityisanart 6 years ago  |  last reply 6 years ago

laser pointer

I own a RadioShack laser pointer (green beam) Can I hack it to burn a ballon? if so, how can i do it? Thank you.

Topic by danzarjoe 11 years ago  |  last reply 9 years ago

Laser Diodes? Answered

 So, I have 2 laser diodes, but I don't know what the voltage/amperage/wattage on them is. Anybody know how I could figure this out?

Question by iBurn 9 years ago  |  last reply 8 years ago

Laser cutter

What is the best laser colour to cut balsa,lite ply,and bass wood for a CNC

Question by TerryE39 1 year ago  |  last reply 1 year ago

Laser Pointers

Hey guys, I was just wondering, if you had the money, what kind of laser you could buy and why.  Just a random thing I thought of after seeing the laser contest.  

Topic by whiskrs 8 years ago  |  last reply 8 years ago

Laser cutter

My dad has an old plotter that I plan on converting into a laser cutter, and I was wondering how powerful the laser needs to be in order to cut thin metal (its ok if it can do it in multiple passes). Where could I get a cheap one? Thanks LinuxH4x0r

Topic by LinuxH4x0r 11 years ago  |  last reply 4 years ago

RUBY LASER.? Answered

Hello every one. I really need some help on how to make a ruby laser, i live in Australia and laser are totally banned where i live so i did some research on how to make powerful laser. I came across Ruby laser, i did some research but i am not sure how to make one or get the parts from so any one that can help please do so. thank you. :)

Question by kk khrab 8 years ago  |  last reply 8 years ago

laser help

How do you take apart a conventional laserpointer like the ones that you get at pet stores?

Topic by kris142 11 years ago  |  last reply 11 years ago

15W laser

Help help help! Ive just fitted a 15w laser to my cnc 3018 and I cant get the laser to switch to low power mode. It just wants to burn everything! How do I fix it? Ive attached two pictures, one of the laser and one of the board. The board is a woodpecker GRBLO 9. Please if anyone can help me I would be eternally great full.

Topic by MattK171 10 months ago  |  last reply 10 months ago

Laser jacket

This laser jacket by Wie-Chieh Shih reminds me of the jacket that Bono wore last year. With 200 diodes in it it is super shiny and dangerous for any eyeballs that come near it. 200 ld stage suit via Make

Topic by fungus amungus 9 years ago  |  last reply 9 years ago

Laser Rangefinder

A member PM'd me with this question, "hi im asking if i can use the arduino micro controller in distance measuring using laser" My response was "Laser distance is the time of flight of a pulse of light pulse that travels 3 feet in a single nanosecond..." Do you think the Arduino can execute instructions at a fraction of a nanosecond ? What is the clock frequency of an Arduino ? . Take care of your eyes when using lasers !  

Topic by iceng 2 years ago  |  last reply 2 years ago

Laser keyboard

A scanning laser can be mounted on a pad together with a low resolution camera.  With these, an image of different types of keyboard for typing, piano playing, gaming, finger writing can be programmed for user interaction.

Topic by oobi07 8 years ago

Laser rangefinder

Hi, I would like to put together a laser rangefinder, with LCD display, that can measure distance to the objects out to about 600y, with accuracy of +/- 1 y. I know absolutely nothing about electronics. Can somebody tell me what components would I need? regards, dejan

Topic by COROVICD 11 years ago  |  last reply 6 years ago

Laser cutting.

Hello (excuse my English really bad I'm Belgian and French) I would like to cut aluminum sheet of + - 5 mm thick and also cut paper without "burning the edges" I would like to know what kind of "laser head" the cheapest possible exists and what would be even better, whether this kind of "laser head" is recovering ... I was thinking of a DVD laser burner but, even though I I'm as good at DIY as an elephant is good at skydiving, I guess a DVD burner will not cut aluminum ... A big thank-you

Topic by Hiram 1 year ago  |  last reply 1 year ago

laser voltage?

I have a laser diode that needs between 3.7v  and 4.2v to run, and i plan to run it of an arduino (5v). to reduse the voltage i have calculated that i need a resistance of aproximately 1.333ohm. is this necessary/is there a bether way to do this? thank you in advance for any answer!

Question by ludvig.risan 4 years ago  |  last reply 4 years ago

Laser pointers

Hey guys, I can imagine this question being asked a few times, but google did not provide good results. ANyways, I have a CD drive, CD burner, and DVD drive and wanted to build myself one of those nifty laser pointers that can burn matches almost instantly. Which one will have the strongest laser to do this with? I'm assumign either the CD burner or the DVD. so which should I tear into?

Topic by Spamwich 8 years ago  |  last reply 8 years ago

Laser Cutter

Would anybody be willing to source and build the parts for . I would be willing to pay up to half of the price of the parts or up to about $150

Topic by 508Parkour 5 years ago  |  last reply 5 years ago

laser cutters

Hi wondering if anyone could help me have a luifure laser cutter 40w which we have just purchases software CorelDraw and laser draw 2013 came with it but the laserdraw 2013 wont load onto my daughters laptop also we did not receive a English maual with it so basically don't have a clue what we r doing any help would be greatly appreciated or we r from fmaesteg south wales so does anyone know of someone who could set it up for us thanks

Question by straddie 2 years ago  |  last reply 2 years ago


I recently came across a HeNe (Helium Neon) Laser module, probably from some medical equiptment. it has no power supply, but im in the process of acquiring one. Does anybody Have any suggestions for what i should do with it? it will be my first post, but definitely not my first project. i'm not accustomed to working with lasers, so any help would be appreciated. Sepcifications: 15 Mw max class 3b model no. LGK 7621 MM

Topic by nickdisney 11 years ago  |  last reply 11 years ago

Surgical Laser

Hi all!So, I have been volunteering at an animal hospital in my home town, and I have been allowed to observe 11 surgeries so far, 4 of which have been performed with this 30 Watt CO2 Surgical Laser. I would like it if someone could explain to me how a CO2 laser works, and I would be willing to answer any questions. the surgeries I have watched are: (1) a spay on a dalmatian (2) an entropion correction on a bullmastiff (3)a cauterization of a bleeding tail tip (without anesthetic & with me holding the dog down!) and (4)a front declawing of a cat.

Topic by bardon08 11 years ago  |  last reply 9 years ago

Laser Harp

Link to buy the plans to make your own (would be cool for the Robot Challenge, i am thinking about it) March 6, 2008 Stephen Hobley saw Jean Michael Jarre play his highly theatrical Laser Harp live 22 years ago and vowed he’d build one just like it. He’s just ironed out the bugs and you can see him play it here. Whatsmore, he has detailed the entire construction process on the Internet. He reckons anyone can build one for under US$600 after purchasing his US$19 Laser Harp Plans and Source Code.

Topic by laminterious 11 years ago  |  last reply 6 years ago

Making a Laser

Hey I read something somewhere about how to make a Laser from a DVD burner. Ive seen the lasers from DragonLasers and WickedLasers and I want one, but because of the price I thought maybe it would be better to make one myself.This is the DVD burner I intend to use: reply to make ASAP with any advice on how to do this.I am not very good at electronics or anything like that, this is the first time Ive done my own little project like this.Thanks.

Topic by Jay Dee 11 years ago  |  last reply 10 years ago

Lasers on motors

I am trying to create 8 motorised lasers that move (ideally randomly) between a 135˚ angle. I doubt with my level of knowledge i will be able to make them move randomly but if i can't just moving back and forth between the 135˚ would have to do.These motors would have to be reversable and travel between 2 points making an arc of 135˚, I'm looking at making this in the cheapest way possible. By mounting cheap pen lasers onto mini motors and somehow getting them do this. I will need to see the beams of light so unless i can find a better way to used focused light cheaply, i'll have to use a smoke machine or something. Having no real knowledge of this, would it be easily achievable, i would use a microcontroller to make the motor movement random within that 135 degrees but i have no idea how i'd go about it.

Topic by happysnail 8 years ago  |  last reply 8 years ago

Can you connect lasers and LED's?

Can you connect LED's and lasers in a series/parallel circuit with a transformer? How would the math work to figure out what kind of resistors I need? Keep in mind I am a beginner when it comes to LED's and no almost nothing about lasers. Just trying to figure this stuff out for some home projects. Any help would be amazing =)

Topic by kturner13 8 years ago  |  last reply 8 years ago

Power to create a Laser Induced Plasma Chanel Answered

I am planing on making an electrolaser and I am wondering how much output does a laser need to creat a Laser Induced Plasma Chanel.

Question by john7z7 7 years ago  |  last reply 7 years ago

I'm looking for info on how to make burning lasers.

I have a laser diode from a laser pointer pen and I also have one from my old laptop. the laser pointer is an Apollo laser pointer. the laptop laser is from a Gateway M360 DVD burner. can anyone tell me how to turn one of or both into burners?

Question by travis3387 5 years ago  |  last reply 5 years ago

Which Lasers Flashlight on Everbuying should i buy?


Question by stella1740 8 years ago  |  last reply 7 years ago

How to calculate resistor size for lasers in parallel - for dummies

I have four laser modules taken from laser pointers. Normally each module runs off of three hearing aid batteries in series, 1.5 volts per battery 4.5 volts total. I want to run all four laser modules off of two D size batteries which are 1.5 volts each 3 volts total in series.The problem is they will not light up when connected to the two D size batteries in series ?  When I use a power supply they will light up even at only 1.5 volts  ( although dim ) up to 5.5 volts,after that they become permanently dim, with the brightest at 3 volts. It seems like I have to limit the amps not necessarily the volts. Each module has its own resistor  - the # on it is 680. When I measure the resistance it shows 68 ohms. What do I need to do to get this to work ? There must be some way to simply figure this out.... By the way I have about 40 more laser modules and I might like to use them all at once to make say..... an unquestionably visible turn signal bulb for my truck or maybe a very illuminating flood light for my backyard .... If I can figure this out the possibilities are endless !            

Question by I Need To Know 8 years ago  |  last reply 8 years ago

Why hasn't anyone built the anti-mosquito laser defense system yet? Answered

Http:// According to what I have been reading the designers of this, found the parts on ebay for less than $50 making me want to scream"Tony Stark built this in a cave! From a box of scraps!"  I know the main issue is the software (which is based off of a missile defense system.) however all the parts are here LED/perimeter detector - Check have seen an instructible on this before Laser capable of shooting down mosquito- Check. we had a hand held laser pointer that some guy bought in the army that could cause a beret to smoke .  But It cost a bit more than $50 I believe. Turret for Laser- Check, this is easy enough of a build. Software to use laser on - questionable.  It was designed by a guy who made missile defense systems and the star wars system, but there is probably someone that smart on here Other viable replacements  like a motion detector/heat detector etc- Check, though its tunability to killing mosquitos is questionable. Summer is coming soon and this could be the coolest light show ever.

Question by Tzarii 8 years ago  |  last reply 8 years ago

slimline ps2

Hey all.  im new here, so forgive me if this question has already been asked. I have an old, slimline ps2, and i was wondering if there was anything i could do with the laser that reads the disks?  it kinda looks like the laser from an XBOX 360, so can i do the same projects with a ps2 laser?  Or are there any other already existing things that i can do with it, specifically with the laser diode? thanks for any help! --knightly insane

Topic by knightlyinsane 9 years ago  |  last reply 9 years ago

is this safe?

I'm working on a nerf-laser-lite mod. Is it safe to take apart the laser lite I got at the dollar store? I'm 11 so my mom won't let me until I find out. Any ideas??

Question by daltonjcw 10 years ago  |  last reply 10 years ago


Hello,  I do not know very much about electronics in general but I would like to make a circuit that allows me to run a group of " LED "  lights, maybe ( 6 to 8  ) in PARALLEL.  I would also like to do the same for hand held " Lasers "  ( 3 to 4 ) in PARALLEL. To make it more complicated, I would like to be able to use the same power source to run both groups at the same time. I would like to be able to turn either group on or off independently while using the same power source. The power source will either be --2  D cell -- or -- 4 AA -- batteries. Normally each LED uses 3 hearing aid batteries. This is the same for each LASER pointer. I think each hearing aid battery is about 1.5 volts but Im not sure what the amperage is. I would like to do it as simple as possible. I hope I can get all of the parts at Radio Shack. I have no idea where to start, any help would be appreciated !

Topic by I Need To Know 8 years ago  |  last reply 8 years ago