Each folder has the .pdf for the laser cutter and hopefully some instructions to inform you how to assemble the mounts.

For mounting projectors you generally need

• square friend (Strut Channel Twist-Lock Nuts from Unistrut
• 1/4"-20 bolt, screwed in from the top
• magic arm (Manfrotto 244) + camera bracket
• in addition to whatever bolts you need to mount the projector to the laser cut piece.

The camera bracket has a bronze nut that fits a 1/4"-20 screw. There is also a 1/4"-20 screw (with a gray knob) built into the bracket. Most mounts Paula makes these days comes with a hole that you must thread (using the tap and die set) so that this gray knob screw can screw into the mount.

Paula's tips for mounting projectors to the ceiling:

1. Assemble the entire projector/camera bracket/magic arm/square friend assembly on the ground.
2. Use a bolt to screw the magic arm to the square friend, and leave this attachment loose because that's how the square friend has room to compress itself into the unistrut.
3. After you've compressed the square friend into the unistrut, tighten everything. To tighten, I spin the projector/magic arm assembly counter-clockwise to tighten the connection from below and also use a screwdriver to tighten the bolt from above.
4. Now you can plug in all your cables and adjust the position of the projector via the magic arm knob.