Ho scale track planning tools,model railroad supplies,woodland scenics water videos,z scale engines - Videos Download

The track plan consists of a single line, arranged as two overlapped loops in very compact space. Below are shown the 2D track plan and the 3D overview, generated by SCARM (click over them to enlarge). SCARM sets minimum radii for flex-track, but the author has an easy hack if you want to go sharper as I have done.
I’ve redrawn it in SCARM and configured scenery in 3-D to best fit with the track arrangement.


My version uses HO track with 10-inch minimum radius curves to create a compact layout only 30 x 48 inches. This takes patience to build multiple contour lines at different elevations, like the contour lines on a topographic map. I often run typical American-prototype freight cars up to 40 foot length on curves down to 10 inch radius, with smaller 4-axle diesel power.
The fifth parameter, the number 350, specifies the minimum radius in millimeters that SCARM will allow for that piece of flex track.


Using Notepad, you can change this to a smaller number — but not too small as the program might crash.




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