An Opaque Projector For Less Than $35

This Instructable will show you how to use a web can as an opaque projector for less than $35 (not including computer and display). We put this together as a quick and easy way to show a classroom full of people what is happening on the display of a small robotics controller.

Step 1 Gather materials and tools.

Materials:
Rigid substrate (I used Extruded PVC sheet 0.25" thick, but you can substitute plywood)
Threaded rod - I used 1/4" - 20
8 - 1/4" - 20 Nuts
8 - 1/4" - 20 Cap Nuts
Webcam
UGlu

Tools:
Hacksaw for cutting threaded rod
Tools to cut substrate (for the PVC it was a utility knife and drill)
Tape measure/ruler

Comments

[yoghurt-feen]

Try to read his description :) The webcam records the robot-screen and PROJECTS to other peoples laptop, what is going on with the robot-screen :) PROJECTION is not only putting and image on a wall :)

[seolfor]

I agree with temper, where is the projector. I see a mount that was built for a web camera. I'm sorry, but I don't see this as a projection unit. Perhaps I am missing something, or a part of the instructable is missing.

[temper]

Ok, ok, I'll bite - where is the projector???

[Dr. Pepper]

Awesome name!