Comments on: Filmscreen Aspect Ratio Screen Masking Controller

By: MRE

MRE — Tue, 14 Aug 2007 11:59:53 +0000

@ Garry: perhaps you could try mounting the mask/s on spring rolls, like a pull down window blind. Then, using a few small pullys on the far corners and a thin cable, pull the masks in or out with a remote mounted motor system.
The masks under tension from the spring rollers will retract as the motor lets out cable.
You could fit the motor anywhere out of sight, with only a few thin cables going to it.

By: Rolan Yang

Rolan Yang — Tue, 14 Aug 2007 00:15:47 +0000

Nice project. It would be simpler if you just placed a piece of thin white tape on the reverse side edge of the masking cloth at the several locations (corresponding to the ratios) then used the photo emitter/sensor detect when to stop. I have a motorized masking on my screen and wanted to mask to be stop right against the edge of the film. Unfortunately, many movies when projected onto the screen don’t conform to the standard ratios so I ultimately went with a simple analog switch which controls up and down.

By: David

David — Mon, 13 Aug 2007 22:23:38 +0000

Looks like you were just linked to on Hackaday.com

By: Garry Mion

Garry Mion — Tue, 08 May 2007 23:02:08 +0000

This is very interesting, both from the control and the roller part. I have a 10′ wide screen that I would love to mask, but only have limited space (about 2″) on either side of the frame by which to build a masking system. I’m thinking of some kind of roller system, but not sure how to make it work with that kind of space. Do you have something that describes how the system works mechanically?
Cheers!
Garry

By: TV

TV — Wed, 13 Sep 2006 19:14:58 +0000

Thanks for the reply.. again great looking job. I’m a technical person (a ‘Code Monkey’ as my wife calls me), but I’d have no idea how to do this.. I’d really love for some kind of instructions on what parts were used, settings, all that good stuff.

By: Danny Mavromatis

Danny Mavromatis — Mon, 11 Sep 2006 22:48:09 +0000

TV,
hahahah… we’ll when I’m all done with the new boards… we can talk. It should be pretty easy to setup yourself.
Danny

By: Max

Max — Thu, 07 Sep 2006 22:08:24 +0000

You’re one crazy mofo!
Let me know when they come out with wireless transmission of HDTV OK? I need it for my ancient house.