How can I connect two cannons to one servo? or more precicely two servos onto one rc output? The idea is to have both cannons turning together with one joystick moving and not using two channels.
I presume you're talking about rotating 2 turrets in unison? If so, the most common way is to mechanically link them together. Rotate one, & the other rotates along with it. Both need to be aligned together, and stay aligned (i.e. no slip, or at the very least, an easy way to realign them). I've used belts, gears, vinyl-coated steel cable, & friction wheel drives. Each has pros & cons. I also prefer not to use servos for rotation because they're just too fast. Not that I have anything against speed, it's just that the rotating mass can stress drive components (which means heavier/more expensive parts need to be used). 2-3 secs is plenty fast, to traverse 180-270 degrees, but a standard servo will try to do it in about 0.5 sec. Sail winches are a little better in that dept., but they're usually too big, heavy, & expensive for my tastes. My preference is to use a small motor & a refersing ESC to control it. JM
thanks, Ive got two great answers to try out, the idea of using motors is good and the y thing seems good too, if its possible. I might try a bit of both and use geared servos without their pots, and put pots on the turrets. gears are too complicated as the cannons are at different levels.
