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This Instructable show how to set up a Wiimote Interactive Whiteboard using Johnny Lee's technique. There are other Instructables dedicated to setting up and utilizing the Wiimoteboard, so I am not going to cover the basic set up steps.
I originally set up a front projection system in my classroom with only one Wiimote and I found I had major tracking issues and it was difficult for my students to understand they couldn't block the camera in the wiimote. So I decided that I wanted to make a large rear-projection screen set up in my class.
At first I had trouble finding information about this set up. It is more time consuming to make so I assumed that is why it not commonly used. Originally I tried what some others had done, trying to use frosted glass or plexiglass but I got really poor diffusion. I also tried the Frosted shower curtain approach which also gave poor results (hot spotting).
I finally decided to spend the $37 dollars on actual rear projection material. And the results blew my mind. I then built a frame and support legs with wheels for my screen, all in all it cost me about $75 - $100 including the screen material. This is by far the easiest to use and explain wiimote set up and my students love it.
I originally set up a front projection system in my classroom with only one Wiimote and I found I had major tracking issues and it was difficult for my students to understand they couldn't block the camera in the wiimote. So I decided that I wanted to make a large rear-projection screen set up in my class.
At first I had trouble finding information about this set up. It is more time consuming to make so I assumed that is why it not commonly used. Originally I tried what some others had done, trying to use frosted glass or plexiglass but I got really poor diffusion. I also tried the Frosted shower curtain approach which also gave poor results (hot spotting).
I finally decided to spend the $37 dollars on actual rear projection material. And the results blew my mind. I then built a frame and support legs with wheels for my screen, all in all it cost me about $75 - $100 including the screen material. This is by far the easiest to use and explain wiimote set up and my students love it.
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Signing UpStep 1Building your Screen
I purchased my screen material from Rose Brand Grey Rear Projection Screen material I purchased two yards @ $16.95 a yard. This works very well with my projector, 2200 lumens, with no real hot-spotting. You can find it here - http://www.rosebrand.com/product703/Projection-Screen-and-Rear-Projection-Screen.aspx?cid=218&idx=1695&tid=1&info=Screen%2bby%2bthe%2bYard
I built my frame out of 1 1/2" by 1 1/2" by 6' boards. ( a 2x4 ripped in half long ways). My dimensions were chosen by setting up my projector and seeing what size was comfortable for me. It ended up being 44 1/2" by 71" (just shy of the two yards of screen material length). So the screen diagonal came out to be roughly 86" which looks beautiful.
I used L-brackets I bought from Home Depot, so that I did not have to cut 45 degree angles and worry about matching them up. After building I found that the joints were a little week so I also attached a metal strap at each corner to give it more stability.
After the frame was build I used a regular stable gun to attach the screen material. I wrapped the material all the way around and stapled it on the back. I folded the material a few times in order to give it some strength where the staples went through.
I built my frame out of 1 1/2" by 1 1/2" by 6' boards. ( a 2x4 ripped in half long ways). My dimensions were chosen by setting up my projector and seeing what size was comfortable for me. It ended up being 44 1/2" by 71" (just shy of the two yards of screen material length). So the screen diagonal came out to be roughly 86" which looks beautiful.
I used L-brackets I bought from Home Depot, so that I did not have to cut 45 degree angles and worry about matching them up. After building I found that the joints were a little week so I also attached a metal strap at each corner to give it more stability.
After the frame was build I used a regular stable gun to attach the screen material. I wrapped the material all the way around and stapled it on the back. I folded the material a few times in order to give it some strength where the staples went through.
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Otherwise, very nice!
i'm curious that can I use projection screen material in different brand? and can wii remote capture IR source through the projection screen material?
Just select "Johnny Lee's technique" in your intro, click "link" and paste "http://www.instructables.com/id/In-depth-Wiimote-Whiteboard-How-to/" as the address
really cool though, it's like the internet hands-on, great build.