You'll need some sort of cradle. Does the projector have any sort of rigging attachment that comes with it (usually there's a baseplate which screws onto the projector with varying attachment points on it)? How is it normally rigged?
Something like this is what you will probably need. Rental shops should have them.
Renting a projector for a week could be in the range of several hundred to several thousand dollars depending on the particular projector. Renting a bracket to mount the projector for a week should be in the range of $20-30 (based on one company local to me). It's a totally different ballpark, and well worth looking into.
I once saw a high school kid mount one of the school's projectors to a batten using a piece of wood, several plastic zip ties, and a whole lot of duck-tape. Please don't use this method
In this case I am now pretty sure it will be pointing directly down to project onto the floor. My projector is designed to be able to be used 90 degrees up or down, the installed lens also only works at a zero degree projection angle so the image does come out of the center of the lens.In other words, most desktop and home theater projectors are manufactured to not have the image come out the center of the lens. This is because the manufacturer knows that the projector will likely be in front of at least a portion of the audience. To accommodate this, it can be below the projection surface when sitting on a table or above the surface when suspended. If you try to keep it in the table position while flown, you have to tilt it down to fill your projection surface and will have a distinct keystone. If you invert the projector when flown, this will not happen. Larger projectors have the beam come out the center of the lens, but will have lens shift capability which can offer the same results if positioned properly.
What model projector are you using?In this case I am now pretty sure it will be pointing directly down to project onto the floor. My projector is designed to be able to be used 90 degrees up or down, the installed lens also only works at a zero degree projection angle so the image does come out of the center of the lens.
I might see if we can get something made up to hang it.
If you look at your manual on page 17, you will notice that the image does not actually come out the center of the lens. This projector is intended to be set just above the bottom of the screen with the bulk of the image being above the projector. So, when you want to rig this projector, you will turn it upside down, where the rigging bolt holes will face up (which will attach to the rigging plate). This will now give you the bulk of your image to the bottom. You will likely still need to tilt the projector slightly down to reach the floor as it has a short throw lens, but you will be far from pointing straight down. Also note that the lens is only manufactured to make an image as great as 300 inches diagonal (a 15' x 20' image). If you are looking to get any bigger than that, you will be out of focal range.
Use this clamp to attatch to the pipe:
http://www.chiefmfg.com/Products/CMA362
Use this mount to attatch to the projector:
http://www.chiefmfg.com/Products/RSMAU
Then connect the two with a length of 1.5" Black Steel Pipe, your local hardware store may sell them in a couple prethreaded lengths, or some will cut and thread them in the store.
Simple, reusable solution for doing this.
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