20 mm calibration cube
The simplest closed mesh: check the size, volume and weight read correctly.
- 12 triangles
- 8 cm³
- No holes
STL Inspector Examples
Measure an STL and estimate its print weight before you slice.
Commercialv1.2.0 · 2026-11-06
Pick one to open STL Inspector already filled in. Change anything you like, then download or save it.
Open-top box
A 50 × 40 × 30 mm box with 2 mm walls, the kind Box Maker makes.
- 28 triangles
- 13.63 cm³
Mesh with a hole
A cube with one triangle missing, to see how the hole check warns you.
- Possible holes
- 3 open edges
Tall, thin post
10 × 10 × 60 mm: tall for its footprint, so the 3MF adds a small brim.
- 6× taller than wide
- 3 mm brim in the 3MF
Large panel
300 × 200 × 3 mm: see which printers it fits and which it doesn't.
- 300 × 200 × 3 mm
- Too big for many beds