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 Post subject: Rail gaps and joiners
PostPosted: Wed Jan 13, 2010 1:44 pm 
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Joined: Wed Jan 03, 2007 1:18 pm
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Just to return to this topic, a quote from Ed M.:
(!empty($user->lang['QUOTE'])) ? $user->lang['QUOTE'] : ucwords(strtolower(str_replace('_', ' ', 'QUOTE'))):
"First, all the rails should have about 0.020" gap separation to handle expansion and contraction. Except in extraordinary locations, I don't recommend any soldering of rail joints. I will pre-curve rails for the curves and then cut off about an inch of the rail to make sure I've gotten curving joints.

Second, the small Micro Engineering rail joiners, cut in half, spread out with a handled spare rail piece to get a slip fit, and then installed, will give you good mechanical alignment. Decorate the web with glued on thin fishplates, and the joint looks realistic and is well aligned."


a) By cutting the Micro Engineering rail joiners in half does one do it along its length or across its width?
b) How easy is it the to cut the rail to the .020" gap given the lengths of rail are already soldered and placement along the layout is predetermined (because the wood ties are glued in place and gaps are left for the PC ties).
c) Lastly 'decorate the web with glued on fishplates', sorry but I do not understand?

Many thanks,

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PostPosted: Wed Jan 13, 2010 10:39 pm 
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Joined: Sat Aug 13, 2005 10:48 am
Posts: 365
Location: East Texas - USA
sambear,

I would not pre-solder the rails along the right of way. You insert the rail joiners along the way. The ME joiners are cut in half across the width to give a shorter rail joiner. Yo have to 'pre-spread' the ME joiners to get the rails to fit - they are tight joiners.

Cutting a gap into existing trackwork will require a very fine razor saw or very thin diamond wheel in the Dremel. For those turnouts, you can cut the gaps with fine jeweler saws before installing the turnouts.

Fishplates come in brass and plastic from several suppliers. Details West has them, and the Proto:87 Stores have them as part of their detailed etched frets of tieplates and turnouts details. These are thin bits of detailed prototype joiners (with nut and bolt details) that are just glued for cosmetic purposes on the web sides of joints. Some actually go along the rails and at 39 scale feet cut a slot in to the rail head and glue the fishplates on the sides for realistic prototype representation of older bolted rail trackwork. The slot does not go all the way - you are only creating an illusion. They are also nice touches for the actual gaps (but don't use the brass ones there)!

-ed-

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