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Reply to "New shelf/Ceiling Layout Design"

Atlas 3-rail standard track geometry (O45, O54, O63, O72, etc.) is based on 4.5 inch track centers.  However, this has been known to be insufficient for certain long equipment on the smaller diameters.  Using only O72 and higher diameters makes the "will not work" scenario for longer equipment less likely, but usually significantly reduces ability to utilize our space well.  Potential compromise is to limit running of long equipment to largest diameter track.

Whatever you build, be sure that your test runs are very slow because you will not want any "scrape-bys" to be longer than necessary or result in a derailment that sends equipment to floor!  Again, testing at ground level before build is highly recommended.

Chuck

OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

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