We’re lucky in the fact we found a spare 180 degree spherical screen lying around our office, so we though we'd give Nthusim a try!
NTHUSIM Plus was aligned using single PC (using an Nvidia 285 GTX), horizontal spanned desktop using a Digital Matrox Triple Head to Go and three Benq MP776-ST projectors.
We used a standard laser level (available from all good hardware stores) to assist with getting the horizontal and vertical grid aligned correctly.
Here's the result .............
Figure 1: Nthusim Plus set-up
To test we tried Crysis and Tom Clancy Hawks.
Figure 2: Crysis
Figure 3: Tom Clancy Hawks
[EDIT] We're planning to develop the set-up and Nthusim Plus to support 3D Vision Surround. Waiting on the new NVIDIA cards and drivers, so watch this space for updates 
Videos:
Tue, 04/20/2010 - 18:49
#2
Sweet! Can I ask where did you got that curved visual screen since there is also depth curve in it.
Wed, 04/21/2010 - 12:34
#3
Hmmmm Very Nice guys
I like that little concave curve too...
I know you wont give up too much, but is concave all the way or just the ends???
Nat
Wed, 04/21/2010 - 20:13
#4
I know you wont give up too much, but is concave all the way or just the ends??
Happy to share. The screen is concave in shape - approx 180x45 degrees. It's going to be a part of a new product range which we are working on.
It was nice to have a spare screen lying around to test 
Thu, 04/22/2010 - 08:57
#5
Thanks Andy,
Besides looking HOT, what are the technical/perspective benefits from a concave circular screen?
So jealous....
Nat
Thu, 04/22/2010 - 11:19
#6
Please more pictures...... im droooling, I need more, atleast a video...
Fri, 04/23/2010 - 03:00
#7
Excellent setup Andy. You can have some fun with that
I planned to build a double-curved screen (plywood of course). But did not have enough space for it
Wed, 04/28/2010 - 16:10
#8
Please more pictures...... im droooling, I need more, atleast a video...
We're working on adding a racing seat to the set-up, so once up and running, more on the video front will follow
Sat, 05/01/2010 - 15:47
#9
This is exactly what I've imagined (probably a bit smaller screen for me though)! Looks like it'd be great for everything. Very cool.
Sat, 05/08/2010 - 08:45
#10
I see you have the racing setup built. I like the video.
Sat, 05/08/2010 - 20:40
#11
I see you have the racing setup built. I like the video.
You'll have to excuse the driving ability .... the video was a quick snapshot of our plans. We're still in motion, but keeping everyone posted on developments.
Sat, 05/08/2010 - 22:26
#12
With racing and flight sims I'm more of a builder than player at the moment myself. My driving and flying ability are very beginner in most of the games I play. Mostly because I have been picking up a lot of Steam game deals and I never stick to playing one game. A lot of simpit builders can be seen as gaming specialists, while my gaming style is more casual and generalist. (IE: my skills at games are not all that great *chuckle*)
Tue, 05/18/2010 - 09:09
#13
Thats unreal (videos)!
Can i get a job at NThusim?
Nat
Thu, 04/21/2011 - 01:11
#14
Where did you get that screen???
It's awesome! I Have to have one!
Thank you
Looks great! I like the screen design.
I also like the idea of the laser leveler. The way I did it on my setup was merely use a string with a weight on the end of it to check alignment. The laser leveler idea is a lot better imho.