Free (Well.. sort of) 100" TV anyone?

Submitted by tbag on
Forum
General Chat

Hi everyone,

I know we have probably all seen the 100"-150" TV instructions on the net (Especially Ebay), and gone "Hey cool some instructions for sale on how to build a 150 inch TV!".

But luckily today i found a website that has the instructions free of charge [:)]. Point your mouse here http://www.playntradeonline.com/projector.html

I've heard some good things and bad things about these do it yourself 150" projector kits. But they seem pretty safe and stable, but its upto you i guess. How they work is basically you put a TV behind a projectable plastic lens known as a Fresnel Lens (Used on light houses) and it projects the TV screen to be upto like 12 feet.

Overall take a look and please post any past experience with these TV kits.

Oh and i wouldnt use the cardboard that the instructions say for the outside box thing. I think the guys aim was a cheap projection set, as cheap as it can be.

EDIT: Found another site with more pictures, http://bigscreentv.20m.com/photo.html

Cheers,

Tom

Submitted by tbag on Sun, 18/01/04 - 5:04 AM Permalink

After reading the instructions, why in the world would you need to turn your TV upside down for it too project and why would the projection be reversed?

Something tells me this guy screwed up on putting the lense in or something.

Submitted by tbag on Mon, 19/01/04 - 6:59 AM Permalink

Ok i found a work around of not turning your TV upside down. If one Fresnel lens makes the projection and makes the projection inverted. Then two fresnel lenses would fix the problem and project larger [:)].

Posted by tbag on
Forum
General Chat

Hi everyone,

I know we have probably all seen the 100"-150" TV instructions on the net (Especially Ebay), and gone "Hey cool some instructions for sale on how to build a 150 inch TV!".

But luckily today i found a website that has the instructions free of charge [:)]. Point your mouse here http://www.playntradeonline.com/projector.html

I've heard some good things and bad things about these do it yourself 150" projector kits. But they seem pretty safe and stable, but its upto you i guess. How they work is basically you put a TV behind a projectable plastic lens known as a Fresnel Lens (Used on light houses) and it projects the TV screen to be upto like 12 feet.

Overall take a look and please post any past experience with these TV kits.

Oh and i wouldnt use the cardboard that the instructions say for the outside box thing. I think the guys aim was a cheap projection set, as cheap as it can be.

EDIT: Found another site with more pictures, http://bigscreentv.20m.com/photo.html

Cheers,

Tom

Submitted by tbag on Sun, 18/01/04 - 5:04 AM Permalink

After reading the instructions, why in the world would you need to turn your TV upside down for it too project and why would the projection be reversed?

Something tells me this guy screwed up on putting the lense in or something.

Submitted by tbag on Mon, 19/01/04 - 6:59 AM Permalink

Ok i found a work around of not turning your TV upside down. If one Fresnel lens makes the projection and makes the projection inverted. Then two fresnel lenses would fix the problem and project larger [:)].