DIY Track Runner Concaved Curved Screen off the shelf parts - AVS Forum
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post #1 of 24 Old 09-29-2010, 11:16 PM - Thread Starter
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My build -- DIY Track Runner Concaved Curved Screen off the shelf parts

Finished Image of my screen build concaved curved screen track idea.
Front and back daylight shots below.







*************************************************

I suppose you could use pretty much any type of board material
that bends and wrap it with what ever floats your boat then size it however you want really.
I was shooting for off the shelf parts. lightness achieved got my aunt to lift it.
Anyways let me know what ya think.



**************************************************

I Placed end caps securely in the vise.
Added a small drop of oil.
The key here is using the COBALT drill bits we used dewalt brand.
These bits are MADE to drill through galvanized
steel. We used a 1/4" bit. Try to drill in
the center of the cap these can overheat and break...dont get cocky ;p





I drilled the 1/4" holes in one of the flexible channel
pieces about 12" apart.

Then attached the flexible channel with the 12" spaced holes
using the sheet metal screws going through the
pre-drilled holes.



I then screwed 4 end caps along the side of the channel.



I then screwed the 1/4" galvanized steel pipes into the
threaded end caps for backing support/stabilization.



Then I simply slid my cheap old white board (purchased from lowes for 20 dollars VERY reflective)then we simply slide the whiteboard into the track.





Attach the second flexible channel to the top
of the whiteboard.

I used 4 Rubber insulated clamps off the shelf from home depot for 1.39 a piece about
stuck down into the tops of the 1/4" galvanized pipes
to clean up and to secure the tops to the second track.

A picture is shown below of them



installed up close




this was my first build idea and I still have another anyways let me know what you guys think so far lol)



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post #2 of 24 Old 10-01-2010, 11:48 AM
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Ingenious. I've seen several of these done with radius curves cut out of 1x8s with a rigid frame, but they were heavy and clumsy. This is really nice...let's see some pics of it in action with you behind the wheel.
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post #3 of 24 Old 10-01-2010, 02:47 PM - Thread Starter
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thanks a bunch for the kind words, i actually have a youtube video of my playing in total darkness. will get some shots too when i get a chance.
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post #4 of 24 Old 10-01-2010, 02:53 PM - Thread Starter
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doh i needed 3 posts to post my video. here's a video of me playing need for speed shift on it in total darkness shot on auto setting using a canon powershot sx20 is and direct upload to youtube no video editing at all and my planar pd7060 is the only light source on in the room.

http://www.youtube.com/watch?v=R-m8zV4eD1U
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post #5 of 24 Old 10-01-2010, 04:15 PM
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Looks great! Can you tell us your PJ and what anamorphic lens you're using?
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post #6 of 24 Old 10-01-2010, 08:17 PM
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Just watched the utube--well done! Bet this will also be great for airplane simulation.
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post #7 of 24 Old 10-01-2010, 08:49 PM - Thread Starter
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Hi, I currently have two planar pd7060 model projectors running darchip3 mercury bulb of course. this pj is out of manufacturing.

Also thanks for all the kind words guys.

here are a few quick screenshots i grabbed with the canon real quick

ironman2 and avatar. keep in mind my projector is not keystoned or mounted yet either nor light controlled.

anyways that's not important here's how the board performs straight off the shelf. the bright lamp on is not that visible also my laptop is the only light on in the room during the screenshots.

avatar



Ironman2 (tony looks pissed ;p)





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post #8 of 24 Old 10-02-2010, 05:33 AM
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So you are using the anamorphic ready option on your planar? I thought that when you projecting on the curved screen you need from a anamorphic prisms standing outside of the projector...
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post #9 of 24 Old 10-02-2010, 08:56 AM - Thread Starter
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I am using geometric wrapping software called nthusim out there for windows. but it costs a few hundred. it is a great program. those movies are sd are running off the xbox.

not fed into a pc. nthusim pc software will wrap most opengl or direct3d including powerDVD and feed the fixed projected geometric image onto a non planar surface.

so the lens is moot really.

here is what it looks like corrected(not done).



ironman one in powerdvd using nthusim and spit out to unmodified pj.



NFS shift corrected via pc software.

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post #10 of 24 Old 10-02-2010, 10:05 AM
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This is very cool setup. I am kind of confused why you wanted to go with a curved screen. Is it because of the gain of the screen? The software looks really cool and I may have to check on that. Does it correct for chromatic aberration?

My new favorite game is Save The Titanic

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post #11 of 24 Old 10-02-2010, 10:25 AM
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He sez he's using a software program to vertically/horizontally stretch 16:9 and so "my guess' is that even so, the software still acts like a A-lens and creates a bit of end flaring.

If not, then maybe it's just for looking cool....or more probably gain equalization.

It does seem in the images the image is over Scanned at the Top/Bottom.

But I echo the previous comment made about how simple, lightweight, and absolutely cool the build looks. Seems also quite obvious that such could be employed for a Flat Screen option and allow for easily interchangeable screens.

I kinda like the sound of that! Optimized for 3D on one side, optimized for 2D on the other.

Hey! I'm on it! Thanks!

To quote James T. Kirk;
"I'm laughing at the superior intellect"
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post #12 of 24 Old 10-02-2010, 11:27 AM - Thread Starter
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it creates immersion(going for smilebox 180 degree curve screen).

I looked at so many cut pieces of wood, piles of sawdust, clamps enough to turn me off and make me sick. I hope my build inspires others. thanks guys. Don't get me wrong i love the carpentry work but lets be realistic.. not everyone is lol or has those tools.

me moving around with the camera not driving filming in Rfactor with a more excessive curve not proper FOV in game either. it's just to test the curves the board is cracked but as you can its for testing.

http://www.youtube.com/watch?v=B5CRWRSo5hk

here is my old board and what lead me to doing the diy build. this is a picture of a more ecessive curve (this was for testing keep in mind the curve is not proper 100%) I was focusing on the frame support as you can see.

yes i assumed anyone could use this build as a flat/whatevern ratio material size etc you want template basically. that is what i was shooting for and hoped to inspire others.

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post #13 of 24 Old 10-14-2010, 10:08 AM - Thread Starter
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bump new build coming.
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post #14 of 24 Old 10-14-2010, 04:19 PM
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Quote:
Originally Posted by TheSeymours View Post

bump new build coming.

To me this is what DIY is all about. Not only building that screen, but exploring, going one step further, pushing the envelope.
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post #15 of 24 Old 10-16-2010, 10:48 AM - Thread Starter
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Quote:
Originally Posted by threed123 View Post

To me this is what DIY is all about. Not only building that screen, but exploring, going one step further, pushing the envelope.

Threed, thanks a bunch for the kind words yet again. As you can see from the new pics this setup has been a fun one haha. Have no choice but to rebuild a new screen for this.


eyefinity 2 projectors up and running..
Time to build a new screen. ;p

Counter Strike Source eyefinity(inspired by brad):

http://www.youtube.com/watch?v=TDIc_pGGmPE

dual projectors mounted x2 windows 7 64 professional.



eyefinity


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post #16 of 24 Old 10-16-2010, 10:56 AM
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post #17 of 24 Old 10-25-2010, 10:20 AM - Thread Starter
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i grabbed a few new action shots with my new canon t1i out of the box.

I also am going to have to extend the screen as you can see lol.

HALF pipe anyone? lol.





logitech g27 wheel with shifter. and thrustmaster ferrari f430 wheel w/dial.
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post #18 of 24 Old 10-25-2010, 03:24 PM
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Enough fun--get to work on completing that screen! ---now...
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post #19 of 24 Old 10-31-2010, 02:38 AM
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Hi,

since I can`t post links (yet), my real post will be after two "filling ones"

Sorry, but I cant help.
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post #20 of 24 Old 10-31-2010, 02:39 AM
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post #21 of 24 Old 10-31-2010, 02:39 AM
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post #22 of 24 Old 10-31-2010, 02:40 AM
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Hi, I`m following your build carefully. It looks already wonderful.

I`m planning on building a DIY 180 degree curved screen with 3 1080p projectors. Thus, I`m really interested in your work and the materials you use.

You should have a look at "Warpalizer":

http://www.univisual.se/home

This Software does warping (like nthusim), but also edge blending !!!! for 150$ per channel/projektor.

This way, you can get a seamless large picture. Example:

http://www.youtube.com/watch?v=EihNP5KRVQk


Regards
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post #23 of 24 Old 11-19-2010, 05:13 AM
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I, too, am watching with interest. I just have been reading about nthusim and warpalizer and it has me excited, for sure. I am now planning to create a 180 deg screen with 3x 1080p projectors, eventually. Right now I have a 1280x768 and my ancient 1024x768. Do either of you know offhand whether either software will handle the different resolutions?

One other thing I've been wondering about, would it be better to use a low-gain or high-gain screen? I read somewhere (stewart filmscreens' site maybe) that suggested low gain in order to cut down on reflections from the screen hitting other parts of the screen. My brain thinks that perhaps you could eliminate the issue by using very high gain material with a narrow view angles. What is your take?

Cheers,
Gerald

Please pray for peace.
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post #24 of 24 Old 01-30-2011, 08:48 AM - Thread Starter
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Hey guys thanks for all the interest. I have been both sick during the holidays off and on all the crap that was going around etc etc i've had to put off all build projects. so i have been just enjoying the holidays and dealing with the in between sick stints. lol. anyways...

I should be able to resume diy building etc within the next week or two.

I appreciate everyones kind words etc.

ALSO please feel free to private message me any insight or questions you might have, thanks.
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