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THE SUMFIZZ LIBRARY

Model railways and miniature transport calculators

Explore 7 free tools for model railways and miniature transport. Find model railway platform train fit, model railway scenery plaster batch, model railway foam contour layers and more. Each calculator explains its inputs and method, with examples you can try using your own numbers.

THE SUMFIZZ LIBRARY

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Model railway platform train fit

Bodies exclude coupling gaps.

Model railways and miniature transport

Model railway scenery plaster batch

Uses measured mixed-volume yield for the selected plaster.

Model railways and miniature transport

Model railway foam contour layers

Nested stepped terrain, each footprint covers its own elevation band starting at the previous contour.

Model railways and miniature transport

Model railway timetable compression

Prototype event times are offsets from a common start, not wall-clock dates.

Model railways and miniature transport

Model railway turnout control inventory

Separate incompatible control groups each use one module capacity.

Model railways and miniature transport

Model railway tunnel clearance envelope

Rectangular conceptual tunnel envelope around a model railway.

Model railways and miniature transport

Model railway repaint decal scaling

Uniform reduction at a supplied model scale.

Model railways and miniature transport