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Chatterbox / Re: Another RC model side project
« Last post by crueby on April 23, 2024, 07:14:51 PM »Got in a little time on the Ruston model today, made up the pivot brackets that will hold the bottom end of the main boom from some stainless flat stock:
These will have a single axle running from one side to the other, and the two brackets will be silver soldered to a wide plate that can be bolted onto the front of the cab floor. The slots that the end of the boom sits in are wide enough so that the boom can pivot up nearly vertical, and down below horizontal. The second smaller hole is for another axle that will hold guide pulleys for the crowd cables. On the real machine, the larger axle had a chain driven pair of cable drums to drive the crowd cables directly. The chain went back up inside the cab to another set of sprockets and clutches. For this model, I'll route the cables back to one of the electric gearmotors.
These will have a single axle running from one side to the other, and the two brackets will be silver soldered to a wide plate that can be bolted onto the front of the cab floor. The slots that the end of the boom sits in are wide enough so that the boom can pivot up nearly vertical, and down below horizontal. The second smaller hole is for another axle that will hold guide pulleys for the crowd cables. On the real machine, the larger axle had a chain driven pair of cable drums to drive the crowd cables directly. The chain went back up inside the cab to another set of sprockets and clutches. For this model, I'll route the cables back to one of the electric gearmotors.