I have been working with solar cells for about six months now and needed a way to cut them into smaller pieces, to get higher voltage when stringed together in a panel. I first started with a wooden jig fixing a Dremel tool with a diamond saw attachment, and manually cutting the solar cell across the saw blade. But a slightest movement of the platform or hand would break the solar cell which is very brittle. I needed something more sturdy and some device which could move the saw blade in a straight line with no jitters, and I thought of the humble scanner.
Here is a youtube video
of this table top saw cutting a solar cell :
The scanner has all the necessary mechanical components for to and fro motion and all I needed to do is attach a super-high speed motor to the “Read-head” which is the main black box that moves and scans the document, and rewire the circuits inside and the buttons on the front panel to make the stepper motor that controls the read head to go back and forth.
I use an Arduino microcontroller and some existing components on the main circuit board to control the Read-head.
The final product is shown in the Main Image