Aluminum frames
Howto, Multitouch 2 Comments »Inspired by other FTIR prototypes I decided to use an aluminum frame. The main reasons for are because its cheap and strong.
Before actually working on the frame, I made a drawing in AutoCAD. Within this drawing I could easily calculate the amount of IR LED’s I would need and at the same time see how the IR light beams would spread.
The local tool shop was friendly enough to cut the aluminum frame (H shaped) into the sizes of my drawing.
So at home I just needed to remove the edges in 45 degrees.
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