This is my homemade trackball made from two mouses. The first one is a optical mouse. It detects where the ball is. The second mouse holds the ball and operates the buttons.
klee27x says: Oct 30, 2010. 12:56 AM
Don't you have to invert one axis, somehow?
joespicnictables (author) in reply to klee27xOct 30, 2010. 4:56 AM
no, the opitical mouse senses the ball moving and moves the mouse. But the left and right is mixed up. So i use a mouse programs that flips it.
GrizzlyWizzly in reply to joespicnictablesDec 14, 2010. 6:36 PM
That's what he meant by asking if you had to invert one axis I'm pretty sure. :D Nice work!
Vijster1 in reply to GrizzlyWizzlyAug 21, 2011. 5:07 PM
what is the program
Vijster1 says: Aug 20, 2011. 9:56 PM
How is the soccer ball fixed in its position?
joespicnictables (author) in reply to Vijster1Aug 21, 2011. 4:34 PM
if you look closely, there is a piece of the center of a cd there (the part with the hole).
salomon1996 says: Oct 23, 2010. 6:27 AM
nice! good job! :D
joespicnictables (author) in reply to salomon1996Oct 24, 2010. 5:59 AM
Thanks!! :D :D
salomon1996 in reply to joespicnictablesOct 26, 2010. 2:34 PM
one question, why two cords? couldn't you have just made it with one?
joespicnictables (author) in reply to salomon1996Oct 30, 2010. 4:57 AM
the first cord senses the buttons and the second cord senses the movement.
Vijster1 in reply to joespicnictablesAug 20, 2011. 9:55 PM
As mice are low-power devices, you can match up the ps/2 and usb wires and solder them together. This would eliminate one cord, and allow for both devices to continue to work.
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