Dear Smitty Two:
ideas on any aspect. My first question would be, is
> there anything off the shelf that resembles a linear
> actuator, that's curved. If not, anything that would
> qualify as build it yourself components, and finally,
> if it all has to be made from scratch, what are
> some ideas about how it might be done?
Clevis mounting below the "plane" the trolley moves on, on the "west side", connected with a clevis to the trolley. This allows only that the distance between the lower mounting point and the attachment on the trolley be controled by the actuator, without actually requiring the trolley go elsewhere.
Additionally, the track could bear a drive chain that would follow the track, and the trolley affixed to that. (Think garage door opener.)
David A. Smith