|View single post by Dave C|
|Posted: 20 May 2017 08:13||
|Having some reasonably large curves on Setforth Junction (36" plus) I rather fancied trying superelevation. My local model shop suggested it might cause running difficulties, but there seemed to be plenty of people doing it on You Tube, and having not permanently fixed and track down why not give it a go?
How to do it? Lots of ideas, but all seemed to be remarkably long winded involving strips of plastic trying to spring back into a straight length, squashing plastic straws or filling / sanding. Why not just shim the track every 4 or 5 inches with a bit of cardboard I thought.
So, cereal packet, scissors and glue stick in hand I made 3 thicknesses of shims approx 4 cm long and 5mm wide - 1, 2 and 3 layers. I eased the track pins out, and then started shimming the track on the outer side, a couple of single layers, then a couple of 2 layers and then the 3 Layer ones. I then gently tapped the track pins in and secured the track - not tightly as that could have deformed the sleeper or line of the track.
I then checked that trains would run successfully which they did all bar one - which was in fact the best running loco we had on 'flat' track. Something wasn't right, and a quick wiggle of the loco on the track soon highlighted that it needed the pick ups cleaning - the camber was taking pressure off one side of the axles causing poor connections.
The track was left like this for a few weeks just in case another problem reared its head, but none did. The track was then ballasted which gave it full support along the full length of the curve (just like the real thing).
The difference it makes to the appearance of the trains as they run round the curve is marvellous
It looks better with a video (albeit of poor quality) which also shows the shims - https://youtu.be/_iLSDwln0wY
Last edited on 20 May 2017 12:35 by Dave C