Ok Sorry to be dense here, and I want to make sure I have everything right. Arfe we talking about two seperate effects ? < i'm not using the word drop intentionally, since I don't want to confuse myself or anyone else, and make them think I'm talking about a curtain when I say drop>
From you second post I gathered that the fabric is a "backdrop" for the photoshoot scene. Does it need to go away after that scene ? If so you'll want to do a "roll-drop" more than likely. How large of an area do you want to drop the glitter over ? I'm thinking and 8 foot wide box Or do you need something wider. Actually the Electrical actuation of a drop box is quite simple and the parts are easily availible from Grainger. The Solenoids I prefer using are 120 and can be wired directly to a dimmer so it makes triggering them as easy as bumping a channel , or if you prefer run cable to a backstage area, near the P.A. or A.S.M. and they can trigger it with an aux. power switch.
So you answer those two questions and I'd be happy to draw you something.
ya. we have a 50 year old hand crank fly system which is very very noise but we are going to hang it off one of the poles. I was thinking about doing a snow bag. but there are very big vents above the pipes so there would be glitter falling through out the whole show. which is not wanted at all. and this is for the very end of the show so it would have to last that long.