DIY cheap way to build 10,000 lumens large venues projector 

My testing of 4 stacked projectors, 20,000 lumens brightness comparison vs 3 vs 2 vs 1 Cheap DIY 20,000 lumens projector brightness testing, comparsion

You could put two different colored gels in front of the lenses to help take the guesswork out of which grid is from which Beamer. Red and green for example. On perfect registration you’ll get yellow lines.

I built this rig for a recent event (September 15, 2016) and it works I used it for over 6 hours! There are some caveats though... There are omissions in the video and perhaps they aren't entirely necessary, but would have been nice. 1 - Decide on how you can position your projectors on each board. Mine were mounted using the straight edge of the board to keep each one aligned. Position also has to consider the lens' position left and right. 2 - Create a paper template for the projector mounting points. This will make drilling holes way easier. 3 - Drill the corner holes slightly larger than the threaded rod. You need enough play that the boards do not hang when you move them. 4 - The video implied that tweaking the blending of the two projectors was an easy thing to do. It is not. 5 - As the video states, you must have a projector that allows for corner HDMI adjustments. 6 - Turn off remote control on the upper unit as the video stated. Use the wireless remote for the lower unit. 7 - If you do events, determine how far you need to be away from the screen. Once you have this setup you will not want to move it. This thing is a real pain to setup. I used MDF and the threaded rod would easily get hung up when moving the top board/shelf. It does not double the brightness, but it does make enough of a difference that it is worth the hassle. That is all.

Absolutely amazing even today I've been stacking Panasonic 6700 for my kids out door movie theater and this helped a lot

Great job Tim! Our school wanted to get a big projector for our auditorium but the huge ones were just too expensive. This will be a great alternative to try out! Thank you!

This is a GREAT video. Thank you SO much for taking the time to make such a clear and easy to understand video for no other reason than to help the rest of us!!

Absolutely brilliant! Thank your for saving us $14,000+. This makes so much sense, yet I would have not thought of it. You have been of tremendous service - thank you!

Great set up especially for a basic dual platform for the projectors. For those who argue the technical aspect of getting 10,000 lumens from two 5,000 lumen projector, I say the main point is you are getting a stronger picture for way less than a 10,000 lumen projector cost wise. Wonder what a light meter would read for the two projectors verses just for one?

This tutorial is AMAZING! Thank you!

Incredible idea. Thanks for this. Well done.

Thank you so much for posting this Tim!. I was able to stack two of the Epson 1940W projectors and use them on a 14' x 8' da-lite rear projection screen. This worked well at two events for over 1,000 viewers where we had no control over the lighting.

very smart. cheap and effective solution. This design is amazing. during a movie event when 1 projector light bulb died u still can continue to watch the rest of the movie with half the brightness. The $13,000 projector cant do that. So, your design is a winner over the more expensive one. nicely done.

Great idea, man! What a clever way to accomplish the task!

Well done for coming up with this solution... And thank you for sharing it

For people who say this doesn't work my guess is they never buy anything with more than one bulb, LED flash lights, photo lighting etc, because more bulbs never add more light. laugh. :) and their car has one head light only. ;) so what if lumens aren't exact. give the guy credit for saving money. great job. God Bless

Absolutely amazing! Congratulations and thanks for sharing!

I absolutely love your video it’s smart and gracious fun to watch as well, thank you

Great vid Tim! THX for posting!

Thanks for sharing Tim, I help out in a school and during plays our rear projection screen does not pump out enough light to contrast with our theater lights, I think Ill have a go at this.

amazing great video Tim. I most definitely subscribe and like. thank you so much.

I'd be interested to see this technique with a couple of polarizing filters for a proper (non-interleaved) 3D projection using the passive glasses that they have in the cinema (as opposed to the expensive shutter glasses used on 3D TVs and 3D projectors). I guess it would depend on getting video that is separable into two synchronised streams and finding a polarizing filter that isn't too dark and doesn't melt in front of the lenses...

Very creative; good thinking; excellent presentation. Thank YOU!

Nice tutorial, it seems to me that projectors with vertical lens shift would be better suited for this, as there would be no need for digital keystoning and thus no loss of quality.

Just what I'm looking for. Thanks for sharing.

Thank you for sharing this it's very helpful!

Thats pretty cool. Thanks for sharing your expertise.

This is brilliant. Well done!

Wow I cant believe I've never thought of this, thank you!

very professional video! i may be using your solution in the near future.

Hi, the truth is that this video I did not see anywhere and the idea is great, thanks for sharing and I will put it into practice friend thanks :)

I do a large Christmas display at my home for Angels for Animals and Toys for Tots. THANK YOU for this video. Very simple, practical and effective. Its solves my problem and opens all kind of doors and creative processes. Thank you for sharing.!!!!

Great work Tim. Nice rig. This is a tried and true method to get more brightness from projection systems and your DIY rig is a very economical approach. Please note however that doubling the number of projectors does not double the lumens. The brightness increases logarithmically, not linearly. So two 5,000 lumen projectors equal something around 8,500 lumens as I recall (perhaps another commenter could do the math for us based on the Inverse-Square Law.) Each projector added brings less of an increase, with greatly diminishing returns beyond 4 projectors.

We used to do that same thing with two 10k's! Though it may have been more for a if one projector goes down the other one still running sort of deal.

Awesome Thanks very brilliant. I save $1000 of dollars thanks to you Tim

Great idea. Great execution of it.

Saving this video thank you for your insight! Tim Z!

Great video, now to experiment with multiple projectors

bravo man, you rock. very well done video. thank you.

Nice idea and innovative. Thx!

Awesome!!! Thank you for sharing!

Great DIY. Thanks for sharing. :)

Very good. Thanks Tim!

Very cool. I would have made the shelves out of thin aluminum with holes, and made them closer together. Everything else was new to me though. Good job.

Thanks for these videos about stacking projectors. I have only just come across the concept of stacking, so this is great information for me. For more stability in the stacking stand, I would suggest that if you installed a second Nut below the Nut that sit under the platform you are adjusting, the second Nut would prevent the first Nut from any movement due to vibration or thermal changes overtime. I used to make aircraft parts and we would use this double Nut method to ensure the Jigs would not lose their tolerance. You will adjust the bottom Nut as demonstrated in this video and then when you have it in the right place you can secure it by tightening the second Nut up against the first, that way the first Nut will remain in the perfect position.

Man ur a smart man would gave figured that out by the time of the end of the world life or death situation. But in today's time things r very costly and it pays to have time and patience ! You made this look easy and it is with ur instructions u save a lot if people with the resources and not enough money achieved the goal they thought they were sold when we buy a decent projector but double two into one to combine light into time and sync them we might be closer to time travel then we think!!!!!

Great tutorial! Thanks for showing us this. I think this will be very useful to many people. I know it will be a big help to me. Thanks again

Awesome build bro!!

Projector alignment is spot on, but 2 x 5k does not equate to 10k. Stick a meter on it and you will see that you'll only actually get around 7.5k ANSI. Don't take my word for it though, try it yourself.

Combined brightness will be 10,000 lumens, however our eyes and ears perceive a doubling in sound or light output on a logarithmic scale. Hope this answers some questions and clears any confusion!

GREET JOB !!!!!!!!! ALL THE HATERS OUT THERE ARE JUST PISSED THAT YOU SAVED 14,000 $ TO GET THE SAME PICTURE THEY PAID $20,000 TO GET!!!!! LOL

very creative. Nice work!

Hi Tim nice video sharing. By the way, do you know to use the 2 projectors to produce a 3D image by using passive 3D glasses instead of using active 3D glasses? Tks.

GREAT BUILD SIR!!

Great tip for saving Ken.

You are a genius! Thanks a lot!

Great and so easy thanks to you

Awesome stuff 😎👍 nice work!

Very Smart and well prepared

Great build!

I have the cree x2000vx rgb 88watts led projector and its pretty bright and with higher wattage rgb leds and different lense options it could of easily been manufactured for large venue use at similar cost.

Ingenious! Thanks!

God bless you in your ministry :)

would it be possible to stack 2 panasonic pt-dw5100u any ideas if they have corner keystone correction?

Even more comfortable it's with NEC Stacking correction tool, which is supported by several of their projectors. Allows to stack up to 4 devices.

this would also be a great 3D set up but you would need a few more items like an aluminum screen and good polarizing filters

Awesome video thanks

wow! ur knowledge it really helps me

Good content, thank you

Lovely inventions

Thank Uu, This is Great...

very good video

Fantastic!

Wow.... so helpfull idea

Good job👍🏻👍🏻

Very clever.

Good idea.

Interesting idea

I don't need 2 projectors. But that platform is "top shelf" nice.

I would had tryed to mount them with the top one upside down and slide shifted so the lenses comes alinged each other and to reduce the gap between each of them at the minimum ( top to top) projector, almost touching. That way, alignment would make more sense as the light sources would become almost near as a single light souce.

Nice Job

Muy bueno

Hi Tim Do you think I can use the same technique to project on an 1.43 screen by stacking two projectors, I'm not sure how should I edge blend them, Considering I'm using 4k cinema projectors

Very nice! Do you connect the two projectors together via daisy chain or with two video cards or something like a triplehead2go?

Great video

what u think about using 2 mirrors to make a shortrhow projector? the firt image will be inverted...the second mirror will solve the proble?

Verry good ideea

Very cool

its like setting the register on a printing press

Need to know how to alignment projector by stereoscopic player or other way?

Thanks!

fantastic 🙂

I thought you were making a 3D projector xD But at the end of the video I finally realized that wasn't the case :3 Pity... I know you can project "3D" with this setup, but I don't know how would any kind of glasses work... If you have any idea how, please give it a run.

I think that this is a great solution. The only caveat that I'd offer is that you are taking a hit to contrast. But the proof is in the projection and I'm sure that when you're using your 2x or 4x rig, the image looks better and better for your application the more of the projectors you turn on. When you're chaining projectors, have you noticed any lag in signal further down the chain? Or is the 4th projector's signal still seemingly in sync with the first one?

Hi Tim, this is a great tool for using projection mapping and stuff... We are a church here in Mexico and I was wondering if there is any way of achieving this with projectors that doesn't have the corner keystone option? Please let me know if there is a tweak or something we could do with this projectors so we can make it happen! Thank you!

Tim - Excellent video. Very informative. Q: would this DIY method work on a dark red brick house at night outdoors with very little little ambient lighting for 3D/HD house mapping projection displays? And what about the LED chips or bulbs, do you replace them?

This is a cool solution. Sounds like someone should sell an auto aligning projector system where you can have from one to 4 projectors for various venues.

How did you drill out the holes for projector mounting screws? Did you use a template?

Very goood 👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏

Actually, based on Disneyland Resort's Disney California Adventure mostknown attraction, World of Color does use this type of projector stacking. The reason why they did it this way is to make a very bright projector (my possible guess to the actual lumens of the professional type projectors are possible at least 20,000 lumens) they used the same way as Tim did in order to projector that vibrant image through the water screen. On my opinion, doubling a single 5,000 lumen projector will not give you a 10,000 lumen projector in total, it is possible that it will only total up to 7,750 lumens or even 8,050 lumens in total.

Fantastic Job! Thanks for posting this. Which Epson 5k lumen projectors did you use?