Just wondering if there is a consideration for bigger units? I am hoping to make one that supports 720 native, am I correct in assuming the 17" lcds would support this?

If I buy the guide, would it be possible to scale it with the help of the insider forums for guidance from some of the experienced builders here? I am about to buy it, I can't wait to get started, it looks legit as compared to those junky plastic lens they sell on ebay.

Thank You

Yah it'd be nice to have a guide for a 15", 7", and 17" all put together as one guide. But it's fairly easy to find information in the protected forums on how to build a 17" projector, just gotta look around a bit.

The standard triplet supports 17" you just need to get your fresnels elsewhere. The distances are all the same, its just the box height and width that need to change. There really isn't a need for another quide all you need to do is scale your box for 7",8",15" or 17"

Awesome, thanks for the advice man, didn't know the standard triplet could support that big of a panel. Oh and one quick question, what would the focal length of the fresnels have to be? 330/220mm, 330/330mm, or 220/220mm?
Thanks in advance.

As said its exactly the same as the 15" 220 between lamp and LCD 330 between LCD and triplet.

Thinking about this some more, I think the original poster may have been asking about the PRO lenses. The PRO aren't vailable now, they are being worked on to remove all bugs in the design the distance are bigger there. So the standard triplet is the only option at this point in time at it does support 17" panels.

Cool, I was just wondering if it would be possible with a little guidance from the protected forums. I know absolutely nothing about the lens and all that other gobbledegook, but Im sure I will learn, especially if it means that I can build a 720 native res projector for the upcoming xbox 360. Im assuming the 17" lcd will support 720 as native on games right? It is slightly bigger (17" lcd) than is needed for a 1024x720 native res right? Please correct me if I'm wrong.
Thanks gentlemen.

720p is 1280 x 720
17" monitors (SXGA) are 1280 x 1024
So the width is exactly right and the screen has another 304 pixels (152 above and below) much like a wide screen DVD on a regular 4:3 TV (letterbox) atleast with the image centered there are ways to shift up and down. You will need a box to convert from HDTV to SXGA but the resolution is compatible so you will see each and every pixel and yes this is one of the cheapest ways to get HDTV support. I think you were thinking of 1024x768 (XGA) which is the standard for 15" monitors.

Oops, my bad, you are correct sir. I meant to write 1280/1024, thank you for the correction. But what I figured you have confirmed, pixel for pixel rendering for 720 native, with some black top and bottom like a 4/3 screen, so you understand me perfectly. It looks like its good to go

Yes thats it.

Has anyone actually built a 17 inch LCD projector with the standard lenses?

What would the advantage be to having the pro lenses (when they come out) instead of the standard ones for a 17" projector?

Also, if I am understanding you correctly, if I buy the standard triplet, and some fresnels with the same focal length only a larger size, it would work for a 17" monitor. Is this correct?

A Toda Madre, Buy the guide!!!

It is an invaluable source of information! The guide itself isnt too great but the protected forums are a goldmine of information and there are lots of case studies to read and steal ideas from!

Look at matropolis' PLOG its worked for him.
Yes larger fresnels/larger box and everything else the same.
The only other benifit of the PRO is that the longer focal distance has a longer "Throw" so 16 feet only generates a 10 foot image instead of a 16 foot image so you place the PJ further back. There is a lot of interest in that. Also the optics are approx 4" instead of 2" which is supposed to allow more light but this has yet to be proven, better quality optics but this has yet to be quantified as the PRO setup is still "in the works".

Hey, you need to buy the guide it has invaluable information and everyone will help you if you have questions. Most of the problems are answered in the forums. It's worth the $20 just to see the pictures of the inside of the pj's and how the lens ,lcd, freshnels, lexan ,light ,ballasts and everything else are all put together. And yes I purchased the plans. I don't work for lumenlab ,I'm just another member.


Yes there have been a couple of members who have used the standard triplet with diy freshnels. It makes a quite a bit longer box but it will work just fine. The pictures diyetor and matropolis are in the forums. awesome to say the least.

The box shouldn't be any longer the fresnels are the same FL.

Look under my name. I am a customer, I just didn't find the answer anywgere in the forums. It seems like people check the public forums more than the private ones.

Thanks for the info pagercam.