[simpits-tech] Teaser pics...

[Gene Buckle]

> Looks cool, Gene.  Are you rear projecting on the screen?
>

Yes.  This is our 3rd generation effort.  The first was a proof of concept
where we hung a twin flat sheet from the cieling.  This worked out
astonishingly well.  For the second version, we built a 8' x 3' frame that
used a sheet of white .030 ABS plastic as the screen.  This didn't work
out so well.  The plastic cut roughly 75% of the light passing through it.
It was *very* hard to see if there was any light pollution at all, and it
didn't show night scenes at all - not enough light was getting through the
plastic.

This new effort uses a 9' x 8' screen frame made of 2x4 and 6 "L" brackets
per corner for strength.  The screen material is a queen sized flat sheet,
made of 230 thread per inch fabric.  I hope to be able to test this on
Saturday night.

This screen will be positioned at the end of the nose instead of right in
front of the windscreen like #2 was.  The hope is that the larger view
will provide a more realistic view.

BTW, the projectoion system consists of a second hand 800x600 LCD
projection panel sitting atop a 4000 Lumen 3M Overhead Projector.  If
you're going to do rear projection this way, 4000 Lumen is pretty much the
minimum if you want good daylight scenes.

g.