Hey gang,
I built one of Trimoor's style rotaries... I used a scroll wheel from a mouse, but the end functionality is similar to what he has. In this case there is a spindle that is glued to the bottom of a joystick, that fits into a small little roller. I plan to wire this directly into an optipac. There are 3 prongs on the roller mechanism x, y, +5v. Any idea what I'm supposed to do with the ground?
Also, I have an optipac with support for 2 trackballs & 4 spinners. I have a panel that already has a trackball and a spinner. Once I ground this thing, I'll plug it into one of the open spots. Is there anything special I'd need to configure on the optipac, or in mame. It seems that I have to switch a jumper from player 1 to player 1+2. I think the most recent version of mame has support for multiple spinners / trackballs without needing anything special, but I can't recall.
Anyway, thanks for the great idea Trimoor.