Turning locomotives at the end of the Tumbarumba branchline was performed with a 60' turntable, large enough to take standard goods 2-8-0, C30T 4-6-0, and any C32 4-6-0 that happened to venture that way on tour trains. It is also turned 48 class diesel electrics, although I just do not know if the CPH railmotors were turned for their favoured #1 end leading.
The turntable is a standard NSWGR 60' steel design, installed around 1921. Manual operation. Only one entry track, although the extension through the turntable was the home of the engine shed (actually a carriage shed), hopefully removed before 1970, as I have no space for it.
|Tumbarumba Turntable, as I found it in December 1980. Yes, I know I have used this image before|
|Similar turntable at Cootamundra, photographed last year. This supplied me with the details that my earlier picture did not|
|an old harddrive bearing, after the case and metal disk platters have been removed. Note the pair of machine screws - the top of the bearing comes already drilled, and tapped|
|Hole saw cut hole into a piece of timber to accommodate the bearing depth|
Brass turntable sides cut from scrap brass sheet, and assembled on a base of brass
|extra brass added for the walkway, and an upper support brace has been added|
|Glue an MDF top with clamps. The top of the bearing pops through a hole in the MDF, and sits around 2mm higher. Check to ensure the bearing still freely rotates. The glue is intended to be permanent, so no more bearing adjustments are possible after this step|
|Two 21cm (60 scale feet) of rail were cut, and assembled on PCB sleepers. Don't forget the electrical gap|
Well, I think the turntable is about half done. The magnetic alignment/locking is still to be fitted, and when I am happy with that, I will finish the track laying. The pair of abutments will need to be completed, the turntable will need finishing with a top cover, handrails, and some additional details. Then painted. The pit will also need its ring, and I have to arrange the electrical wiring to each turntable rail. Of course, the pit has to be filled, and detailed too.
Stay out of the sun. Build a model, or read a model railway magazine. Until next time.