MODEL MAKER GUIDES

Scale math for the workbench.

Clear formulas, checked examples, and practical notes for miniature and 3D-print projects.

How to convert real dimensions to model scale

Divide the real-world measurement by the scale denominator, then convert the result into the workshop unit you prefer.

Resize plans and parts from one existing model scale to another.

Round an exact decimal measurement to the nearest mark your workshop ruler can show.

Resize a scale-model file by comparing source and target denominators.

The same real-world room becomes very different in size as the denominator grows.

Measure one reliable feature on the model and compare it with the same real-world feature to calculate the missing 1:N scale.

Convert real furniture dimensions into one-inch-scale workshop measurements while keeping every part in a single printable project worksheet.

Compare common model railroad ratios, convert dimensions between layouts, and understand why named scales can vary by region and standard.