My setup has been fully in place now for two sessions of Worlds Largest Dunegon, and one session with another DM in his home brew campaign setting, which happens to use the maps from Undermountain level 3.
The projector is a Sanyo PLC-XU41 that I picked up cheap. It has 1500 lumens and a 1024x768 resolution. It mounted it is 1700mm away from the board, which gives us an image 800x600mm.
I used strips of aluminium to create a
cradle for the projector. They are just bent into shape and bolted together, with some foam padding.
The stand is a lighting stand I bought on e-bay. It is easy to setup and pack away. The only problem is to get the maximum throw it is right against the ceiling so I can't use the ceiling fan.
For control
I have two computers running
Klooge Werks. The maps can be scanned in, it imports jpg files easily. For the Undermountain session I created the maps from the FR Atlas.
On the master (left hand laptop) I can see all of the map, and reveal areas as the characters explore.
The client program runs on my old laptop (Celeron400 with 128Mb ram) and is connected to the projector. I can move the map around, and zoom in or out as needed.
While exploring I leave it zoomed out, but when combat begins, I zoom in so the scale is correct for the minatures.
