My present layout is code 100 track. I am planning an expansion with two tracks connecting the old code 100 section to the new section, which will be all code 83. My question is, what is the best way to transition from code 100 to code 83 in 3 foot sections of straight track.
thanx corbyn city george
Get some code 100 to code 83 transition rail joiners or transition track sections, made by Atlas.
I did basically the same thing. I used a Walthers transition track section, which is a straight piece of track about 4 or 5 inches long.
You can also modifY a standard rail joiner. Solder the joiner onto the code 100 rail, being careful to insert the rail only half way or even a bit less. Then, using pliers, squeeze (squish?) the empty half such that the top is virtually fused to the bottom. Finally, solder the code 83 rail onto the now flattened half of the rail joiner.
If the railhead height is equal (automatic when joining Atlas flex to Atlas flex, otherwise shim to equalize) all that is needed is the standard Atlas universal rail joiner. Either remove the tie(s) at the joint or gouge out clearance for the joiner in place - going extra-deep on the Code 83 tie(s). Then install the joiner on the Code 100 side, slide the Code 83 into place and anchor the track. Make sure to cut joiner clearance in any replacement ties.
My transitions, anchored with latex caulk (and pressed level with a stack of angle iron) have been in service for five years now without a hiccup.
Chuck (Modeling Central Japan in September, 1964 - Code 100 where the sun can’t shine, Code 83 or less where it can)
That was exactly my situation a few years back. I used Atlas Code 100 flex track, and I decided to expand my layout using Atlas Code 83 flex track. To make the transition, I purchased a Walthers Shinohara Code 100 to Code 83 Transition Track for $10. It is a 6 inch section of track that fits in perfectly with no derailment problems.
Rich