Really great build. Might I recommend painting the interior of the projector flat black? It will cut down on stray light and make the projected image clearer and give you more rich blacks.

I made a projector like that but it was a little before HD times, and those bright LED even were available to us, so I used a Metal Halide 400w lamp (the dot one) and a Panel from an LCD Monitor, it worked marvelously well. Now, I learnt a few things, one of them it was that the Source light should be as Small in size as possible, that translates directly in how Sharp the final picture on the screen will be, that LED you have there is way too big for the sharpest image, nowadays there are quite smaller/powerful LED units out there... thank you anyways for reminding me about all of this, I think I'll give it a shot with new technology! cheers!

it's not about making a projector to replace something you can't afford. its about the of making something out of nothing and spare parts I think it's awesome. in the experience of doing something and making something

you could buy one that's really expensive, American brand made in China , or you could get on a website that has Chinese projectors with descriptions that conflict with technical details, or blatantly lie to you about the details, or buy the cheap but good Chinese parts and build it yourself like this guy . Great job, I love these types of instructional videos.

Cool, Dracula is building a Projector!

wood vs electricity vs heat! Gotta love the combination!

I feel so calm after hearing his voice.

There are lenses and optical windows that absorb heat (infrared) but allow the visual spectrum to pass through. You could use one of these between the CREE LED and the LCD (with a cooling fan that cools both the CREE and this lens/window) to keep the heat from reaching the LCD screen.

Great job. Having tried a projector with a single mirror and smartphone with marginal results, this is really incredible!

This comment is for the ones who doesn't have knowledge and diligence! It is not just about saving money or time, It's about proving to yourself that you can do it ! Great job thank you for sharing

Amigo, este é o melhor projeto de projetor que vi na internet até hoje. Parabéns! Rio RJ Brasil

This project is much harder than it looks(or he is just lucky). Optics are hard to deal with and you often end up with uneven lighting on the screen or very low brightness. Great build!

Is Idubbbz talking in his European accent? :P Nice video mate!

A very nice project. I build my first overhead diy projector 15 years ago - mainly the same principle, but no lenseshift, lower resolution and the original lamp (15€ and last only 50h). The cost of the lamp was the main reason to abdon the project that time. Now I think about reactivating the old project... One possible improvement: Part of the heat at the display comes from the first linear polarisation filter. An LCD contains of one linear polarisation filter, a colour filter, the liquid cristals between two sheets of transperent material (with the contacts inside for the electrical field) and a second linear polarisation filter, right angle to the first one. The first polarisation filter blocks 50% of the incoming light - and so produces heat. The liquid crystal turns the polarisation about 90 degrees (no electrical field), so it goes straight though the second polarisation filter. Ist there an electrical field at the part (pixel) of the lcd, it stops to turn polarisation, so the light get stuck at the second filter. So there is a quite simple solution to protect the lcd: extra polarisation filter between 1st frasnel and the display, so the light gets pre-polarisied to the display. So a big part of heat is blocked before the light gets to the display. Of course, an IR-blocking filter would help also to reduce the stress the display gets. The lensshift is a very good idea. How exact does it work? Would it be possible to build two projectors setting side by side, projecting at the same spot? The reason I ask: 3d-Projection. There are some possible ways: 1. Linear polarisation As the display has already linear polarisation, using 45 degrees. At the second projector, you simply change front- and backside of the panel, so you get -45 degrees (or 135°). Of course, the picture has to be mirrored on that display to get ist right. Or you use a blank LC to rotate the polarisation of a normal orientated display. Fitting glases for viewing are used in some Imax cinemas Silver-wall is needed for projection 2. Circular polarisation This is done by using a lambda/4-filter (lambda of green colour, so blue and red are not exacly circular but "egg"cular...). It reduces ghosting if not sitting exacly upright. Same as linear polarisation, but adding a lambda/4-coil between display and objectiv. Two versions: 2a) both displays normal orientated, but lambda/4-coil on one display -45° and on the other +45° (to the linear polarisation, so 0°/90° to the axis of the display). This is the principle on zalman Monitors (so you can use the glases for them) 2b) like 1) orientated displays, so lambda/4-coil has the same oriantation on both projectors (0°/0° or 90°/90°). This is the Real3d-Concept, so you should use that glases to watch (cheapest solution) Silver-wall is needed for projection 3. Infitec/Dolby3d Infitec is an colour filter system using interference filters. Simple spoken: one glas only treepass the left part of the blue, red and green spectrum, the other the right part. So you get full colour on both eyes, but different wavelengs. Due to the sensitivity of the eyes todifferent wavelenghs you have to do different colour corrections for left and right projector. This system has some disadvantages, but (in my opinion) some very good advantages: Disadvantages: - Licence Politic. You normaly can not buy filters and eyeglases, you first have to get a licence (expensive), then you can buy them. But there have been dia/slide-projectors with this filters, so sometimes you get luck. Also some early 3d-monitors with this technique were sold, so you may get filters and glases this way. I had luck and got a set of filters and two glases... - Only 7% of light gets through the filters, 93% are reflected (not absorbed, so the filter do not get hot) Advantages: - The filtering is done before light gets to the display. As the maximum heat the display can endure is normaly the limitating factor, you can increase the light output - 93% will never reach the display. If your projector normaly uses 100W LED, you may use 1000W instead (or a plasma bulb...) - The glases use the same filter. So external disturbing light ist also reduced, while the light from the projector gets fully through. - You can use a normal white wall. No special silver one... Dolby3d is Infitec, but left and right changed. So if you can get hand on Dolby3d glases, simply swap cables... - As the filter reflects all unused wavelenghs, you may use one lightsource for both projectors - the "wastelight" from first filter contains the wavelenghs the second needs. The main reason for building an diy-projector in 3d: the technology normaly used makes headaches. The left and the right picture are sequential shown, so one eye gets picture, the other dark. In homecinema you use normaly a shutter glas. But also most cinema use sequential projection. Real3d uses an LC (the whole LC is one "pixel") to swap polarisation 0°/90°, folowed by an lamba/4-coil; Dolby3d uses a colour wheel between lamp-unit and projection-unit. With a selfmade dual-projection, you can solve that problem, showing left and right picture the same time. And Infitec/Dolby3d is only possible with selfmade projectors (or very hard modified commercial projectors), as the filters must placed in parallel beam... As for the displays: of course a nexus7 is not ideal for external sources (it is perfect of course to stream 2d Video, surfing the net and so on). There are some displays with hdmi available, using full hd at 7 inch. They are made for cameras. Lilliput A7S 7-inch 1920x1200 IPS ScreenLilliput A7S 7-inch 1920x1200 IPS Screen cost about 150€

This is awesome. I have built myself a beamer about 15 years ago, same technique with a 7´´zoll Display fresnels, a surface mirror to reflect to the lens and to shorten the casing and a lamp with active fan cooling, don´t remember the name but it was used in stadium lamps :D The ballast for the lamp was so great, that the beamer was about 25 Kilo. Pretty awesome in result though. We had outdoor cinema very often with neighbours coming over and the side of the house as screen. I´m really tempted to go for your build. LED ftw I have used a focal lens and a much bigger lens for the stray of the lamp itself to even out brightness. The resulting picture could be adjusted from 1.20m to about 3 meter square.

You are a design engineer... Good work 👍👌👌

it looks like this projector has better picture than projectors you can actually buy and it has manual iris aperture and other worthy features, many of (especialy Epson projectors) have really poor lens

Wow, didn’t expect such a high quality result from that. Very well done.

I've been searching to find someone using the 100 watt LED module and you're the first! Nice work, I'll be watching you in the future, best of luck to you. Looks like you're almost there!

Cool. A lot of old technology that used high powered light bulbs can be replaced with modern leds. The old style bulbs threw out an enormous amount of heat. Anyone wanting to try this would get a lot of the parts from an old slide projector. The projection lens he uses is a Russian Industar.

the best title is how led video projector works..? you can reach more peoples..thank you..very good workd from algeria 👍👍👍🇩🇿🇩🇿🇩🇿🇩🇿

Simply the best explanation I've ever seen about DIY Projector. Thx a lot... 👍

it is the most amazing thing that I ever seen in my life.

When he said "hi" he sounded like the joker played by Heath Ledger.

WOW I did not expect to see such quality of video come out of this thing... very nice!

This tutorial is just what i was looking for. Really amazing projector. I was tired to see phone projectors. Thanks.

You don't need an arduino to control the servo

Now make a 4K projector out of a Xperia Z5 Premium display ;-)

Kind of a pain, but in the end, this project was worth it. Thank you. You're awesome!

Hi I think this is great! My question is : is the LCD screen see through ? I know you showed pics of you removing stuff from it but I didn't see the LCD transparency. Because when you showed the end result the image brightness looked very low. Edit: I'm dumb, I didn't see you had made this a 2 part video and 2nd part explains the brightness.

WOW!! one of the best DIY projector tut.

You sound like Microsoft sam

I got into DIY projectors because it was a cheaper method. Now I just like the idea of making my own granted the quality to price ratio is good. I recently got interested in triple LCD. one LCD for each color, should and a light for each of those

well is really interesting to see a much better quality in this DIY project than many expensive good branded projectors out there.

Wow. Very simple method.

Just one word to say, WOW!

This is about concept of learning the invention which is work that he did!I like it !

Do you need cooling fans if you're using an LED?

I'm not saying it's a bad projector, it is the best one I have ever seen, but who the hell has that stuff?

As soon as i finished this video i subscribed, you are genius and i hope to learn more from u

Nice, I like this projecter and like projector clarity

Hey. You made it very useful. Congratulations

Hawkins is doing real physics

Awesome way to teach every detail of every single part nice project..

Really very clear and good picture quality.

Is it important to put a fresnel lens in front of the lcd display? Can it work without it aswell?

Holy Molly! Nice work man! I'll do it any time soon!!!!

I can't believe how incredible this projector is, you are an amazing maker!

You're genius

this is very cool video i like it

why don't u make it and sell

you are so genius and good technician

Thanks bhai... You are Genius... One should have good knowledge about electronics to make such things... thanks.

Perfect design!

Amazing work... Looking forward to the next video... I'm probably going to try to recreate this :)

Great Video...But you whistle too much 😂😂

This is insane... Good job

Is that a mechanical toomstone setup? Im impressed even most commercial ones dont do that, they just end up chopping up the image from the available pixels...

For the price of these parts, time and effort it's cheaper to buy one

this is the real video I have seen in the internet

INCRÍVEL! adoro seu canal.

bro this is genius..

oh my fucking loard.... what the fuck did u just made, its pure gold bro..

हमेशा मुस्कुराते रहेंगे

No offense..... Please don't take it the wrong way, but I can't understand one single word at all... But a cool build non-the-less. Kudos.

wow! Great projector!

awesome trick... plz upolad next video... pls provide all material used in description..and where we can get it cheaper

hi can I get a link on how to do the entire construction of this projector

nice diy :) please post the final result and more detail if you can ! The only thing that i cannot find online cheap is the big lens 300mm..

i love your video, hugs from colombia.... thanx for the knowledge

This is super cool and images are very clear than cheap chinese projectors!! How much did it cost you to build this DIY projector?

U legend Bro.... Nice build.

Hi buddy, amazing Project! I just could not understand where those thin sheets that apears at 2:57 goes on the project and what they are, can you tell me? Tks

Really good work

Omg veryyyyy veryyyy veryyyy nice , pro man 🙏🥳

Hey genius person just a small question from a small fan sir please tell where we can buy the main lense in low price of 3 to 4 dollar please

This dude's amazing

That's dope! But Amazon sells 1500 lumen projectors for 99 bucks now

Real nice project, but most of the items' list links are broken.. Can we please have details on the parts? Bravo!

Awesome build! I wanted to make one like this for a while. I suggest you to install a display streamer like "Spacedesk". It'll allow you to use this as a second screen for computers.

Awesome! Though I'll still buy one instead. What's the average price of this quality made by the A-brands like Sony you think?

really cool video i might try it myself

Impressive work 👌

Great 👍🏼 video

you are really genius

Thank you, I need one for teaching !

Good music 🎵🎵🎵🎵🎶🎶🎶

Thank you Microsoft sam... loved your video

Well done l really like these works

After leaving Cousin Larry, Balki went and got his electronics degree from DeVry.

Very good work I like

Bless you sir. Far better than buying already made and cheaper.

Very nice 👌👍👍

Im big fan of u

Waoooooo......Hermosa idea me encanto! Gracias por compartirlo! ; )

Ufff... Caricimo, con los gastos me compro un proyector

I want more details about this projector like how to place lcd, measurement about wooden box and more pls give me reply

yeah I think I'll just go buy a projector instead!

wow very gud project.

Your S is very pronounced, very sharp to the ears almost like Herbert the Pervert from Family Guy