Building a TRUE 4k home cinema projector (it’s awesome)

פורסם בתאריך 25 מאי 2022

תגובות: 10 030

  • The written guide is now live for those interested! At the moment it's exclusively on Patreon for ease of hosting on my part: www.patreon.com/diyperks

    • Will build. Thanks for the guide and idea!

    • 2 years later the PDF is still paywalled "for ease of hosting"... nevermind that it's literally one click to have something hosted on that site but available to the public for free... Guess checking one box instead of the other really adds a lot of difficulty.

    • hello

    • Please giveaway me i need this

    • Same even though I don’t build it. It’s really entertaining

  • Really enjoyed this 28 minutes of something I'll never build

    • Ditto

    • Jjjjajajja lejos el mejor comentario 🤣🤣🤣👍

    • Hahaja

    • it's so unfortunate bc I absolutely would love to do shit like that

    • Really enjoyed this 28 minutes of something I CAN'T' build

  • This man actually made a pdf step by step how to make your own projector at home, this man is the kind of man who makes the world go round, GOOD JOB WHOLEHEARTHEDLY, GOOD JOB. You should be paid for this.

    • He's paid by the sponsorship, the ads, and the fact that the guide is still behind a paywall... lol

    • @Asgeir Løland go for it buddy. You got it! What are you waiting for?

    • @Magik Martian yes

    • @RedKnockz You?

    • @Magik Martian quite a few people actually

  • if this guy was my teacher in middle school i'd be a electronic expert by now

    • If my grandmother had wheels, she would be a bike.

    • @VisitMyShack he had a family

    • Ya.no.

    • @JAS Then switch it off, what is the problem?

    • @JAS I kind of didn’t want you to fix it, lmao. The commitment looked baller as hell.

  • Bruh, imagine buying a 2,000 dollar projector just to flex how much better your home made one is

    • Lol

    • But how much does the diy projector costed

    • Well he would probably have already had one and made the new one to replace it.

    • @ZebraCow Was. Not is. Since then we got 4K home projectors that are both much smaller and much brighter. The cost of this DIY projector is cheaper for sure, but for the brightness it's just not worth it, as many home projectors nowadays are well capable of showing bright enough image when the light is on (because DLP technology has way better light utilization), and you bet anything 4K would be even less likely to cheap on that. And if you consider it for fun in the first place, then there's nothing to flex for. Also, just saying, many of the DIY Perks projects are actually very practical and cost effective. Not this one though. And that... Well, I'd say it kinda feel odd to have a not so practical design on this channel. Maybe if he chose to do a design with 1000W backlight it would be more practical?

    • @野龍 1, I'm fairly certain that his projecter was significantly better 2. Duh, the point isn't practicality, it's the fun of building something with the labor of your own two hands

  • it is very rare for a very smart person to deliver his knowledge perfectly to other people especially to those average ones who just enjoy watching DIY videos.

    • agreed I'm one of the many average people would never built this but I find it fascinating how smart and creative this dude is an his attention to details is really amazing. I was thinking how much he would achieve if he worked at high level engineering like in NASA or MIT

  • I am interested in the bit where you replaced the battery with a small voltage regulator board - there is surprisingly little written about this kind of hack (or at least not that I could find) - I think 'hacking lithium powered devices to run off alternative sources' might be a worthy subject for a video of its own

    • i dont know why he cant power the phone with otg

    • @sloma111 because the battery would eventually wear out and fail (and since he used an old used phone the battery might already have failed). Most phones don't survive very long plugged in and powered on constantly. Instead of having to pay for replacement batteries as they die he replaced it with a power supply instead.

    • @MyBadStudios that is what the pdf guide is for but i guess you were too lazy to even check that

    • @MyBadStudios It’s a, “watch until the end of the video” video and if you’re inspired to make your own there’s a pdf available showing all the materials, measurements and tools required including a detailed guide on building the projector. 🤦🏻‍♂️

  • “using a 300w LED will mean louder fans” someone will probably watercool it at that point

    • @koksem1234 rrr Yes, watercooling would be totally worth it...

    • @koksem1234 rrr Watercooling will be a billion times more silent...

    • @Jameson Hardcastle I'm pretty sure it would, just the tubing would bend the picture out of shape. I think the fluid would be even worse. Plus any bubble and it's over.

    • @AMD Россия linus tech tips tried to use that to cool a pc but it didn’t end up working so not sure how much of a difference it’ll make

    • @Nicholas Sabadicci you could probably use a distribution block with a translucent white cooling fluid... 🤔 But idk if it would diffuse the light to much to actually make a good projection.... 🤔

  • *This was my first **Bestt.Digital** projector and I’ve always wanted one, glad this is the one i chose. I was scared about how the quality would look, but its pretty clear*

  • I could never build this in 10 lifetimes but that was utter fascinating.

  • People say this is Art Attack for adults... I'd say you're the Bob Ross for makers :-)

  • This is awesome. Not just the end result, but the whole process of building it. I love projects that teach lots of skills along the way.

  • I love the concept and your ability to just start doing. I think you've come up with a relatively easy, and fundamentally sound design. I do have one critique on the design aspect though. And that is the build orientation. You state that the orientation is optimized for it's footprint, and I like that but from a heat and cooling standpoint it's upsidedown. Horizontal projectors have their main heat source expelling heat away from all other components. Where this build has the heat rising to the LCD which is sensitive to heat and will reduce the hours of elongated use. If you where to flip the build the only modifications needed would be to flip the screen orientation. But you would be expelling heat much better, this along with fans directly actively cooling the LCD panel would allow you to get away with a much brighter light source. I'm curious of your thoughts. I would also be interested in your take on using a old classroom overhead projector as a starting point since you obviously have an ingenious ability to repurpose old tech.

  • When I was like 6 years old, I cut out the bottom of a milk jug, placed a bright flashlight inside, and attempted to use it as a projector to cast film negatives onto the wall. I think my version beats yours for cost :)

    • Not In quality comparison! 😂

  • I am so proud of the fact that you thought we will actually build this.

    • @‹〈 Big Boi 〉› nah lol rich people would just buy a quality projector

  • Holy cow that build is legit! Everything from the vinyl wrapped aluminum panels, to the cleverly adjustable focus rig, to the custom-milled threaded inserts is totally professional in every detail. If I had come up with this, it would have been gobbed together with epoxy and zip ties. It would be wobbly and frustrating. Yours is a triumph! A very good build with lots of helpful details. Thank you!

  • Let's take a minute to appreciate how long it must have taken him to thread all the nuts and spacers through those rods

    • Years😂

    • 😂😂😂😂

    • I was thinking the same thing

    • A quick and easy way to do this is to lock the rod into a drill to spin it while you hold the nuts in place. Don't tighten anything down till you've got all the nuts in place though.

    • He has a nut threader duhhh

  • The work put in to these videos/projects in bonkers. Well done!

  • I love how this guy narrates everything as if we're actually gonna build it. Let's be honest, we're here for the great quality of satisfying contents.

  • For the next project, we'll be building a rocketship and comparing it with Space X's yet to be released BFR.

  • Love this channel! would love it if there was a kit available with all the parts in it to straight up build. I always start these projects but never finish because i'm missing a specific part or 2

  • This man is an absolute genius and deserves all the accolades

  • I love this project and am impressed with the results but comparing it to a $2k projector is laughable. High end projectors can be $20k or more. Mine was considered "good" and was $4000.

    • Time for a 1 year follow up, version 1.1 vs a much nicer projector! Couple ideas I had.. That Noctua cooler is definitely beefy enough to handle way more than 100w of heat, led seems like easy upgrade. Also the last piece of acrylic being used as a dust cover seems like it should be glass. Idk enough projectors but I'm sure Matt could come up with some cool improvements. Motorize the focusing wheel thing maybe?

  • Great video! Thanks for making it. I’ve got a screen from an iPad mini 2 (200mm x 135mm, 2048x1536 resolution). Would that work for this project, or will it be too big?

  • Brilliant. Thanks for the clear, concise instructions. I just built mine in 10 minutes

  • Man this kind of "project" is so advanced and professional and specialised at this point it can barely even be considered DIY anymore. Still makes for an entertaining video at least, even though i have no idea what's going on nor any intention or means of buying the stuff and making it myself

  • the LCD has an RGB colour filter mask, might be part of the reason for the drop in brightness, part of the LED's spectrum might be simply lost on the filter. Cheap alternative to that LED could be a xenon (HID) bulb perhaps, not sure how good the spectrum of the cheaper ones is, but in theory xenon can do near-daylight and the light source is nearly point-like. Just need to deal with that UV.

  • Thats actually quite a simple design and this seems like a fun project to work on. Thx for the great video !

  • It would be really cool to see what you would do with a 16mm projector, like a Bauer P8 TS or Eiki Slot Load. It would be really cool to see one of these use an LED source for light, as I imagine the image would be much brighter - if you manage to keep the heat down.

  • I just want to take a moment to offer my sincerest thanks to Matt for his work. I share custody of my daughter and we've done a few of Matt's projects while she's with me, and doing so is one of the reasons we've grown closer. It's not easy being a single dad to a teenage girl, but the experiences we've shared while learning and creating something new has been a true source of joy for both of us. So, thank you Matt. I'm deeply appreciative.

    • You're a freemason? Because of your yt-symbol?

    • damnit. i'm tearing up, u a good dad.

    • To be honest this should be number one priority for every parent from day one. Making things together and learning new things in the process, developing that brain power, for kids evolving their brain in the right direction and for the adults keeping that brainjuice flowing. With it making those social bonds. Win-win for both parties. Instead of the modern day norm of the majority that where adults chase false dreams stressing out them selves and their children and their kids being neglected stuck on screens doing nothing watching who knows what and growing into lazy useless parasites.

    • this is nice!

  • Stumbled on to these videos 2 days ago....probably my new favorite channel to follow. Just awesome content dude. You make me feel really dumb without being condescending....and I appreciate that.

  • Wonderful! Thanks. A suggestion though, mount the heat sink with the blades facing up for better cooling and the led should be facing down. Then use mirrors to direct the light up. It would improve the cooling of the led.

  • I'm just watching it now and I'm wondering... Since I roughly know how heatpipes work, I doubt putting them upsidedown, with the heatsource on the top, is a great idea. The liquid which transferes the heat will just pool at the cool bottom of the pipes, leaving the hot top dry. I mean some heat still will be transfered through the copper, but it's just not as efficient.

  • Imagine you have a company that sell all of your stuff commercially. Man you're amazing👏

  • Matt feels like the holy fusion between Linus and the hacksmith with a lil bit extra

  • I really appreciate that you work all alone like recording, editing, building new things etc, hats off to you man ❤️

  • Hi Matt, It is so cool to know how things actually work apart from the hacks. Great job !

  • perfect like always. You have so much knowledge and it is always nice to listen to your calm but enthusiastic explanations. Well done !!!

  • Does the ghosting (common on most low-mid level lcd phones) affect the image? The pixel alignment on the 2000 one is amazing tho, and I'm not so sure about assuming 'less vibrant = worse', the 2000 one sems to have a far greater range and balancing (it's not greenish out of the box). But for a diy it's waaaaay more affordable than any commercial solution.

  • You've given me everything I need to overclock this project into a liquid-cooled, 8K, 5000 lumen monstrosity.

    • @Bradley Hinton lmao!

    • @Bradley Hinton why stop at dry wall?

    • please share with the world if you do this!

    • 8k display?

    • Drive in cinema for giant dumptrucks!

  • I've seen many DIY projector builds where the LCD is in between the two Fresnel lenses, so that the light rays go straight through the panel... This is the first time I've seen it done this way with the LCD after the to Fresnel lenses. Is there any benefit to either way? My thought was that with the LCD in between the Fresnel lenses, the light will pass through the polarizing layer "easier" making the image brighter? Any thoughts on this?

  • Interesting video. I've always thought it was akin to a cine projector / slide projector, which is simply a light source behind a film image, and said film projected via a lens of suitable frame size. The projectors of the 70's rarely used lenses to focus the beam, just relying on super hot, bright halogen lamps. (Can you imagine how hot a 1/2" high 100W halogen lamp got. If the cine film remained in the gate for more than a fraction of a second, it melted !!) I actually came to this article as thinking of making 100W video lights with suitable heatsink+fan ... if I can find a non heatpipe design!! In theory, should be as bright - but smaller - than the LED strip panels you made. (I currently have modified 50W LED floods with a fan blowing against heatsink)

  • I would love to see a follow up to this where you build one that can produce as bright a picture as the commercial version. With a 200w or 300w LED.

    • Please do it. Also any benefits using mirrors on the walls where the lights are inside of the projector. Please try to improve on this, you can get completely silent fans, make it horizontal to mount on the roof. It's very impressive.

  • You know what would be cool? Using a high refresh LCD with this. Like the RAZER phone ones. They never had bright backlights anyways, we'd be doing them a favor. Though... I wouldn't know where to get a controller board for it, and they're only 1080p.

    • That is a crazy good idea. Only problem is I think most of the high refresh rate phone screens are OLED I. I wonder if those screens need any sort of cooling as that could be an issue as well. Still a $300-$400 diy projector with high refresh rate would be insane

  • Incríveis 😍😍😍😍 realmente vc está de parabéns 👏👏👏👏eu aceito de presente este lindo projeto que vc fez 😅😁

  • Now do a liquid cooled, upgraded version with one of those LED laser pods. Man I love people who do things like this. Makes me want to buy more tools lol.

  • I like this. You did a very good job. It would be great if you can also include an estimate of how much you've spent building the project

  • Excellent video, very professional and well explained. Thanks. I have a couple of questions that you may know the answer to. I found this video due to researching building my own projector. I want to build one for a building projection so have to deliver minimum 10000 lumens. I'm using a bulb type at the moment (Sanyo PLC-XF45 ) which is a pain as I can't turn it on and off as I'd like and getting a laser or LED one with the output I need is £30K ish. This project does it all bar the brightness. Noise is no real problem as it is being used outside but I wondered if a car laser headlamp would be better as it contains its own heat sinks / fans and it designed to be used in a small plastic box (head lamp cluster). I believe LED or laser headlamps can be sourced to give over 10,000 lumens so my next question is would you have an idea of the factor of reduction the LCD screen has on the lumens ? Ie 10000 in give 5000 out etc. Thanks again.

  • Diy Perks is like the Bob Ross of DIY - He has a nice voice and makes beautiful projects in entertaining videos, but most of us probably won't try to actually make anything.

    • I'm just going to put a happy little projector over here... lol

    • Great comparison, I never noticed it myself but now you mention it, he does have that very calming, reassuring sound to his voice....

    • @AndréVDM You know what I'm glad you want to give it a try. Like I said, more than 50% won't do anything, I guess you are in the other 50%. Cool 😎

    • @Pedro Moo i actually want to give it a try, seriously... i have collected all kinds parts over time just because it is a waste to chuck usefull stuff... only need the power LED and decent android control/panel.... wanted to yonks ago do some similar with old laptop screen and overhead projector but lcd controller was the missing part... stripped the projector in the meantime to have fun with the fresnel lenses

    • And let's not forget the sheer fantastic energy and excitement over the projects that just oozes from him.

  • You're really good teacher at all. Appreciate and clap for your contributions for our mental growth in technology. Love for your all excellent projects. I'll be glad to be your student. ❤️

  • it seems very overwhelming at first, watching it all at once, but when you break down each step like he does in the video and take your time (maybe weeks), its very doable!

  • What about painting all the walls, between the screen and led light, white. This would reflect more light and might result in a brighter image. Great video as always.

  • Love your work Matt! Would love to see some sort of diy led overhead projector. Perhaps with some swappable atmospheric moving oil/light slides. Kind of interested in building something like this myself but don't yet have the knowledge.

  • I really wanted someone to explain the concepts of light and magnification in depth, thank you so much.... It was incredible as always

    • @StayLiteral I think it depends on where and when you went to middle/high school.

    • jholotan best ya, idk what middle school you went to but none near me went this into depth on anything. Dudes thanking the man for the opportunity to learn and you have to be a snob about it? Yikes.

    • I think middle school physics covered that and high school went into more depth.

  • I have a project for you; I'd like to see someone place perfectly the same amount of 4K smartphones in arrangements of one per pixel; on a rack that each are directed towards accurately capturing exact video of it's designated pixel( it would be possible to mod this to a mega computer in form of separating the smartphone and maybe even just creating external cams and using those through software drivers and tethering linking....etc...) but the idea here would be to have the top smartphone's pixels' amount within each pixel of a screen. This one will surely take a while to top. Cheers buddy

  • I have watched this video many times, your explanation of Fresnel lenses helped me with a completely different project. thank you!

  • Hey! Wow, your products are insanely good! Would it be ok to sell some of these designs on the market? Or are these videos strictly for diy? Regardless, thanks for the great content!

  • Congrats for this amazing project! Actually does anyone can explain me one thing? Why do we need a large format lens (rather than 24x36 lens)? Also the converging fresnel is supposed to converge the rays of light to a "single point" the focal distance. Also if the distance between the lens and the fresnel is equal to the focal length of the fresnel, the light ray crossing the length is supposed to be very small no?

    • Sorry you question doesn't make sense to me. I know what a fesnel lens does and it's used to adjusted the size of the image. Does that help.

  • I love the lack of hot glue and snotty soldering. I love this guys projects.

    • cuz all the electronics don't require soldering at all. man wireless technology has come a long way.

    • Don't be hatin on Ben Heck!

    • @Pawel Florczak lets not forget 5:39 :)

    • @Peter Cruickshanks You`re mistaking "well spoken" with snobby there bud ;) Don`t think you know what "snob" means.. Had he been a snob he wouldn`t be making things himself, rather go out and buy the most expensive and "classy" premade stuff.. Then, he`d scoff and snark at people who make things themselves..

    • Kinda have solder the components tho, lol

  • This is really amazing. Definitely a winter nights project! My question is, could you reverse this a little bit and instead build an astounding telescope?!

  • I will never build any of these but his enthusiasm always brings me back. Keep up the good work

  • I like how he gives us all the parts like I’m going to be able to make it.

  • Your channel is going to be my absolute favorite come the time I can afford to build along with you good sir, love it, thank you!

  • I'm continually blown away by how professional everything you make on this channel is. How you manage to create so many different things and always make it look good, function beautifully, and ever quiet is always incredible.

    • hard work

    • He's at 95% imo. Everything looks great and does the job tremendiously fine. But I always feel like theres a small 5% overhead to take his projects to OEM standards.

  • Like around 16-18 yrs ago, we used to do this with a huge metal halide bulb with its gigantic 10+ lbs transformer, a stripped 15" LCD monitor, a silver bowl-kitchen ware reflector (I forgot the name) and the lens spec'ed and designed by Brainchild. I wonder what happened to Brainchild's Lumenlab but I used to be one of those kids who made DIY projector. BTW, you can do lens shifting by tilting the Fresnel lens. I had this feature on my wooden projector that I used for 3+ yrs. Good times.

  • Loved it! Have you ever considered using Black 3.0 paint for the internals?

  • Love your channel man! Just found it today and have already watched close to 5 of them. Keep up the good work.

  • This guy is the real deal. no compromises. no clickbait no lies. keep up the great content

  • Can we take a moment to appreciate the amount of work and effort that goes through into these projects

  • wow, that is amazing! Can it connect to media inputs and audio outputs?

  • Matt, please start making these, I will definitely buy one!

  • I wonder if it could be made smaller still by using a 3LCD-Syle image source. Of course you'd have to take one light source and pipe it to the LCDs. Then converge those sources to one lens.

  • Built horizontally with the heatsink over the led would help with cooling a more powerful light source. As well as an ek block and 240mm radiator 😁

  • I start to sound like a broken record, but you really outdid yourself with this majestic project Matt!

  • awesome build. i built my own large format slide projector after learning a few tricks from this video.

  • If there is a nuclear apocalypse, this guy will have his fully modernised luxury survival base up and running when everyone else struggles to get by.

  • It’s amazing indeed! Do you sell projects like that? Economy wise that’s really awesome….

  • Nice to know that there’s a PDF, that’s very thoughtful. Even though I will probably never make this

  • You are single handedly more interesting than the entire "How It's Made" franchise... Good for you

    • I hope you're not talking about that old Discovery Channel show from about 20 years ago, that was awesome.

    • Yes I know that how to basic

    • You know how it's made cannel

    • @Diego Coello lol. Are you a kid?

    • @Diego Coello i never understood how people find that poopoo entertaining. to me it resembles idiocracy

  • I think it's time to use your brilliant cooling solution to cool the LCD, you could go for a 300w led.