I’m just getting back into model railroading
Planning a layout under Christmas Tree - approximately 5’ by 4’
will have 2 level - O gauge on main level
O27 train (received in 1956 when I was 6!)
I was planning part of lower level to be in tunnel
if I construct the tunnel with woodland scenic 1/4 inch foam - will it be able to support the O27 line overhead
any comments/ recommendations greatly appreciated
tom
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1/4" foam? I wouldn't count on that to support much. That stuff looks like the packing material, it's not high density foam, I'd pick another support!
I doubt it's going to have the strength to hole a locomotive. Plywood is probably your friend here. 1/4" or better depending on how it's supported.
Any chance you could sketch the track plan?
I have often used carboard boxes for Christmas layout tunnels and they will hold up the train overhead if you are careful. I use paper towel tubes cut to the right height as pillars to support the box where it risks sagging. It won't sag at the edges, usually, unless you cut away a tunnel portal that's too large. One or more paper towel pillars in the middle will do the rest.
I once built a layout with a huge castle made out of Playmobil standing on four or five cardboard boxes at Christmas. An O-27 train ran through the castle. Both the train and castle stood on top of the boxes. On the lower level, I ran two loops of track beneath the castle, through the boxes. I cut portals through the boxes and lined them up. It worked.
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