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$2 USB Optical rotary upgrade for most joysticks
griffindodd:
The problem with mounting to the joystick inseam of the shaft is the angle of lift that gets created between the surface being scanned and the laser. Anything more than about a millimeter aand the laser won't track. Keeping the laser and tracking surface inalignment is critical
pinballjim:
Here I was about to object and you covered it in the last ten seconds.
Brilliant.
BadMouth:
The disc would be sandwiched between two flat layers and not attached to the joystick shaft, so no lift. That is the idea, but upon further thought, the normal joystick movement could result in the laser mouse tracking slight rotation when there is none.
Idea downed.
griffindodd:
I have a couple of these coming to me in the next few days, going to look at trying to embed them inside a split balltop/handle...
https://www.sparkfun.com/products/10982
griffindodd:
--- Quote from: BadMouth on September 11, 2012, 09:25:34 pm ---the normal joystick movement could result in the laser mouse tracking slight rotation when there is none.
--- End quote ---
Yeah this is where optical can fall down unless you can calibrate a quantum flux level/dead zone. There's a reason Ikari warriors used switch rotation, I'm sure the stability of rotary position was one of them.
Fun stuff though, I'm enjoying the challenge here