Saturday 8 October 2022

Clerestories and Controllers - O9 Tramcar Progress

We last saw the O9 tramcar build with the bulkhead panels in place on the floor and some seat supports in place on the platform ends. The seats are now in place either side, made from Slaters planked styrene backed with 20 thou sheet and add further strength to these areas. 

Either side of the end dash panels I added lengths of 60 x 60 thou quarter-round Evergreen section to give a pleasing rounded appearance to the corners. These overhung the headstock pieces a fraction so some packing was added to even these out. Once parts were set in place everything has been tidied up around the edges. Behind the headstocks pieces of 40 x 40 thou strip fill the step openings leaving a clear area for the side panels to be added.

Up on the roof I decided to add a clerestory, of sorts... Not a proper fully-built job as you might expect on a full size tram but more of the bump-in-the-roof you might get on miniature railway stock. This needed to have the same subtle curve as the rest of the roof and the best piece for the job was the bit I had removed to narrow the roof down! As previously explained this was cut 2mm too short so I have had to make up the rest with 40 x 60 strip and Milliput will be deployed in due course. I think even if the cut strip was wider I would have faced it either side to neaten the edges so just as much filling either way... Once set the ends of the clerestory strip were filed down to gently curve to the roof edge.

Jumping ahead a little, I was able to balance the sides and roof into place with a figure on the balcony to prove there is room. In fact a small selection of figures have already volunteered for duty, I daren't tell them of the horrors some may face to clear the motor. Please excuse the gap at the top under the roof, that will not be there in reality!


With body construction tasks now largely complete, work began on some suitable control gear for the platform ends. Rather than lots of pictures of tiny pieces on the cutting mat I have created a montage...

Top Left: The control boxes started life as 5mm square Plastruct section, but as this was a bit intrusive I cut one side off to make it 5 x 4 mm. Top and bottom I added some 3.3mm x 60 thou Evergreen strip offcuts inside the section and a top from 30 thou styrene. Once set this was neatened off.

Top Right: The handles for both control boxes and brakes were shaped from 0.7mm brass wire. I filed the top of the horizontal section flat on the pieces destined for the control boxes and for both components bent this section to a slightly curved shape. For the handbrakes short sections of brass tube were cut to make a collar at the top and a base. The parts seen here are actually the extra set that were created quite by accident as parts were rejected!


Bottom: The control boxes were drilled 0.7mm top and bottom and the wire threaded through. The excess at the bottom forms a locating pin and holding point during painting. The handbrakes were carefully soldered together with the addition of a split pin under the top collar to help secure the part to the dash panel.

Once the soldered parts were cleaned up I drilled two holes in each platform, one central and one towards the right hand side. In order to take the now cut-down split pin a hole was drilled in the dash panel but from the outside due to restricted clearances. This will be plugged and filled from the outside in due course.


The stage has now been reached where the next step is likely to be Milliput in a multitude of places...

Colin

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