Guides · ArmorMetric AI

How to resize STL files for cosplay armor

Scaling in a slicer works for one print. Resizing the file itself keeps every piece consistent.

Check the file's real units

Many armor files are modelled in millimetres, some in inches or centimetres. A file that looks 25 mm wide is probably in inches. Set the unit before you scale.

Scale per axis

Unlock proportions to make a chest wider without making it taller. Every vertex is rescaled, so the exported STL/OBJ is a new printable file.

Check it fits your printer

The Studio compares the result with your printer's build volume and can split oversized parts.

Next: more armor guides.

Every fit is an estimate. Always verify with a tape measure and a test print or test cut before printing the full piece.

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