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 | last reply
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 | last reply
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 | last reply
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 | last reply
I have a laser diode that needs between 3.7v and 4.2v to run, http://www.laserlands.net/gd-ms-200mw-green.html 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 | last reply
So im making a laser spirograph (https://www.instructables.com/id/Laser-Spirograph/#step1) 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
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..." https://en.wikipedia.org/wiki/Laser_rangefinder 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 | last reply
what kind of laser is used in laser printers?
Question by Fypsigon | last reply
I pulled a laser diode out of my 16x dvd burner drive and want to use it to make a laser cutter/burner. I want to know is it required to use a laser module or can I just hook it up straight to a battery and have it work.? Also how many battery do I need to make it work.? I tried hooking it up straight to a 9v battery but nothing happened.
Question by adamdarby43 | last reply
I was playing through my older Splinter Cell games the other day, and had my airsoft pistol next to me. I had attached a laser pointer on it, mostly for kicks and giggles. While playing Splinter Cell, I turned off a security camera by shooting it with some sort of laser from my FiveseveN and it gave me an idea. I decided that I'd like to make a simpler version of this for a scenario airsoft game. So my question for you guys is, is it possible to make a laser tripwire that can be turned off by aiming a laser pointer at some sort of sensor on it? If so, how much would materials cost me, and how difficult would it be to assemble? Could it be pulled off by someone with little electronic experience like myself? Thanks in advance!
Topic by CapnTac | last reply
Hi all Thinking about putting a project together based on some of the great instructables on here. Can anyone shed any light on how much power I will need for a laser that will engrave slate? I am not sure whether a diode laser will be up to the job or whether it will have to b a co2 laser. Any info would be appreciated.
Topic by gary101 | last reply
I'm working on a project that utilizes a series of laser beams, about 8. Instead of having 8 separate laser pointers/diodes, I think it would be easier if I were to find a way of splitting the beam of light from one into 8 beams of light. Does anyone have any ideas? Something like shining it through angled Plexiglas or some kind of prism?
Topic by whatsisface | last reply
I'm thinking about messing around with a laser printer cartridge (They're cool, look at them- they're just asking to be made into a laser gun!) Is there any safety concerns I should worry about? (Most likely an HP cartridge, I haven't acquired it yet, I just saw it.) Looks similar to picture.
Question by Doomwaffle | last reply
Fade Out is a system of "painting" an image on a photoluminescent surface with lasers. It was developed by Daito Manabe and Motoi Ishibashi and can create different shades of green depending on the timing of the laser. Check out the video below to see what I mean. The source image from the webcam is used for the image that's put on the wall. via pinktentacle
Topic by fungus amungus | last reply
Hello, Without going into too much detail, a friend and I need to build at least four visible laser beam systems. We were looking on Amazon for visible green lasers but the reviews were so so. We are looking for something that could last for at least an hour and a beam that can be bounced off of multiple mirrors. Thanks
Topic by RipDiesel22 | last reply
Hey Guys, I recently needed a laser for a project and as the electronics store had none i thought why non to extract one from a cheap laser diode. So....i got a laser peeled back the casing and got it. But the problem is that it doesnt work. Most probably because one of the contacts doesnt seem to be attached to the laser. Pics have been uploaded. Not that the lower contact doesnt seem to be connected with the rest (p.s it had a spring which used to come in contact with the underside of the button cells. I was wondering if any of you could help me.
Question by SA-DIY | last reply
i am doing a laser project using three mirrors and motors to make a kind of spirograph. my mirrors are a hard drive platter. what wattage should the laser be so that it can go threw 3 mirrors then be seen properly on the wall at a 2m distance
Question by pbergeronronronron | last reply
Hi I want to use a laser and a ldr to switch on a relay using arduino once the laser is tripped the relay turns on and once it trips again its off could some one help me with the code and schematics i want to use pin 9 as in1 on the relay thanks a ton in advance
Question by TheGreatResistor | last reply
I was making a laser trip wire, but I was looking online for diodes which I found, by which one would be best to get, I dont care for the color, in fact I am better off with red and the intensity can not put off heat to harm anyone. Anyone have any laser diode recommendations or have a site that I can buy them from?
Topic by bprins | last reply
So, I found this ( https://www.instructables.com/id/DIY-Laser-tag-system-from-simple-to-complex/?ALLSTEPS ) (I would comment this question, but i dont have pro) and I'm wondering: A. are the two circuits connected in any way. B. If not, not does the body (Detection) circuit get power? Also, is there anyway to integrate a timer into this so that say, each round could be 10 minutes and you could (somehow) wirelessly start the timer, and it would start (But not count down) from the set time when armed? Thanks.
Question by Tuckoguy
So I ruined my second laser diode in a row, and I am just sick of trying to solder on to these tiny leads. I get these things off ebay, and I think they just scavenge them out of broken Bluray burners or something, because the leads on them are tiiiiny. So instead, I think I will just buy a laser module. I found a pretty good 250mw blue one on ebay for 53 bucks. Does anybody know a dedicated hobby website though? One that might have better prices? I don't need a laser pointer, because I already have my own circuit set up and stuff. Any thoughts?
Topic by thedonquixotic | last reply
Hello guys, I need some help building a circuit. I'm new to electronics, so go easy with me. Is there a way to build and laser alarm circuit but instead of the alarm going on just when the beam is broken the alarm stays on until I turn it off? Circuits like Kipkay's only go off when the beam is broken. How can I make the alarm stay on once the beam is broken? Thanks
Topic by HavocRC | last reply
I am starting a small business, and would like to engrave my company logo on the products, the box is black, and made of plastic. Anyone have any suggestions for how to build one under $100 out of old CD/DVD-RW Drives? I found this ( https://www.instructables.com/id/Pocket-laser-engraver/?ALLSTEPS ) but dont understand entirely how its built, could anyone give me ideas, or help me understand this post better? Also, the box is 3x4x1.6 inches, and it needs to be a shallow engravment. Thanks
Question by Tuckoguy | last reply
Hi all, I am looking at buying a 2nd hand Versalaser VL-200 laser cutter. It has the air filter base. The unit was made in 2006. I do not know much about these things yet. Can anyone offer any thoughts, opinions or pearls of wisdom before I spend lots of my hard earned cash? Thanks in advance, Wayne.
Topic by waynevanwijk | last reply
Hi ladies and gentlemen! I am looking to build a proof of concept, then a prototype on a laser detector array. I need a setup that will pick up a laser beam directed at it from up to 200M away. My idea was to use an array of photovoltaic cells hooked up in pattern. When a laser hit one or more of the cells the current would trip a relay that passed the current to a buzzer or alarm. My concern was that sunlight and ambient refection will cause false signals and trip the alarm. I am sure there is a way to set the system up so that the alarm only went off when there was a voltage spike in a single sensor, or put a variable resistor on it so that only light levels above ambient would set it off. The system will be deployed facing down towards the ground so direct sunlight should never hit the array. I would like to start off with a single photovoltaic cell to prove that the system works and then integrate the others to form the array. Thanks for the help!
Question by KTFlory | last reply
I'm here again guys to ask you this question, will this circuit work? More Importantly, is the LDR placed correctly? 'cauz I'm having doubts on this circuit :S And I'm going to make a PCB for it, and I'm too lazy to test it on a bread board (too lazy to solder wires on parts with big pins, e.g. DC Jack). If this circuit will not work I'm going to switch to relay laser alarm types. Just give me the answer please. Thanks :D
Question by Charles Mendoza | last reply
I work in a manufacturing facility and we've got a lot of forklifts that are buzzing around everywhere all the time. there's an initiative to make it safer for forklifts to interact with pedestrians. one of the ideas someone had came from another facility where they have these blue spot lights on top of the truck that project a blue dot in front of and behind the truck. you see the blue dot and you know a truck is coming. there's some concern that this might get missed by a pedestrian. a thought came to me, being a nerd, that we could use something maybe a little easier to see. I looked in to some disco type laser displays that you can display custom graphics with, but there's concern about how sturdy they are or how long you'd actually be able to use one (whatever it is would basically have to be on almost 24/7). we've got several Motorola barcode scanners, and the long range models (mc 9190) have a feature where it projects a red square to show the area where the scanning will take place. it's a solid red square, not just a perimeter, that scales up with distance (it's like 4"x4" if you're within 2' and goes up to a pretty large size the farther out you're pointing it). These scan guns are way more expensive than this project calls for of course. Does anyone know of a source for JUST the imagers for these things? or could anyone suggest a way to replicate the effect...a big red square on the floor, with other equipment. needs to be able to run for a long time, hopefully could be powered by a 24-36v DC source, possibly motion detection (though not really necessary)
Topic by crapflinger | last reply
For a school project, I am running a 4.5 volt, 0.03 amp laser pointer. I need to run it from a 24v power supple. I have tried 1/4 watt resistors, and they ended up smoking. I don't know how to determine what components I need between the + power and the +lead of the laser pointer. Any assistance would be appreciated.
Question by dkop1 | last reply
I have just started the optics section of my physics class and I was amazed to learn that one can use a simple magnifying glass to form a beam from an LED. Could this be used with a high power LED such as a 100 watt one, and then a beam expander (backwards to compress it) to form a laser beam of sorts. Obviously it wouldn't have a common frequency, but could one theoretically make a very high power, burning beam with this quite easily. I know from experience that holding your finger in front of a mere 10w led can get quite hot, so couldn't using a 100 watt led yield some awesome ant killing hotdog frying results? If not, how many beam combiners would you need to make it work
Question by seedorfj | last reply
I want to ask can anybody explain me can I put a real laser in an optical mouse? I want to be able to move in on any surface even in the air (1cm betwen mouse and surface)? I want to make an fps gun mouse, so please, tell me, can anybody do it ? And if yes what laser I should use?
Question by menace4 | last reply
I want my high powered laser (that i am going to make ) to be super powerful and if i understand this theory right than i should be able to keep it in a focused beam correct?description:first the high power laser is activated shooting out the beam- then a concave lens is placed in front of the beam- at the most focused point you put a flat lens not at all concave then the laser will be shot at its most focused capacityVisual: \ l ==========\ ====--- -- -- --- l / l beam continues at focused rate / Correct or in correct if incorrect is there any way to do this?
Topic by HOMEPIE64 | last reply