Motorising the Airfix Dockside Crane

[firefly9]

Many thanks barry. That's great. 

[Dawnflyer]

Hi Richard,

here is a sketch showing diagrammatically the connection between the crane wheelbase assemblies and the under base board leads screw drive arrangement.

The drive assembly would need to be able to pivot to accommodate the change in angle as it extends and depending where the pivot point was would determine the load on the crane wheels stopping it from falling over when lifting a load.

Jumping to the motor feed wires and slewing drive here are several photos showing what I did.

The four wires pass through the front slot in the deck and would be hidden behind the crane leg.

The four wires were super glued together and are arranged to be in line with the wheel flanges, a standard ribbon cable which I found later could be used.

Only four cables as one could be common to three motors and the others selectable by rotary switch for slew, jib raise/lower and hook raise/lower.

Hope this all makes sense but ask if not sure of anything.

regards

Barry

[Dawnflyer]

More photos 

[Dawnflyer]

Last ones showing slewing motor arrangement, just two more for jib and hook to shoehorn in!

First photo insists on being upside down.

Edited October 16, 2022 by Dawnflyer