| Hi there, welcome.
I rather think you may be giving yourself a big problem by not using a servo.The only thing that springs to mind is some sort of clutch mechanism, with a spring return to the central position. But that will take up as much room as a servo and i am assuming it is space that causes you to avoid such use.
Is it a space issue? there are small servo's available ( i don't know the kit)
J. |