A fully usable teleprompter setup for large screens up to about 13". Works with lenses down to 20mm (full-frame equivalent) or possibly even wider!
It uses a standard 15mm LWS rod system for flexibility and strength.
The screen used is a salvaged 11.6" panel with a breakout board, but you can use any display that works for you or even an iPad with it.
https://www.youtube.com/watch?v=rcsASFFXf_k
Technical
295x295mm 3mm polystyrene sheet (acrylic works, too)
Roughly 400x400mm piece of black cloth
A handful of M4x18mm screws and washers (or equivalent imperial size)
A handful of M4 threaded inserts (or equivalent imperial size)
One 1/4"-20 screw for the camera quick release (coinslot preferred)
2x 300mm 15mm dia LWS rods (carbon fiber or aluminum) http://go.toms3d.org/15mmRods
Base plate (between Manfrotto plate and rod clamps) http://go.toms3d.org/rodBase
Camera quick release (arca swiss) http://go.toms3d.org/ArcaSet
Teleprompter quick release (Manfrotto) http://go.toms3d.org/ManeBase
Print 7-8 clamps, other parts just 1x.
The LCD_EL parts are only required if you use a salvaged LCD + breakout board.
Use black filament at least for the "mirror" piece.
Insert threaded inserts into the appropriate spots.