Final model check before printing: a practical list

By Ronak Rawal · 1 October 2026 · 2 min read

Once a model is printed and cast, mistakes cost real money. A short final check before printing catches most problems.

The list

1. Scale and units. Confirm the model is in millimetres, and measure a known part, such as the inside diameter.
2. Closed solid. The model must be watertight, with no gaps or open edges.
3. Thin areas. Check the thinnest walls, prongs and shank against your caster's minimums.
4. Stone seats. Compare each seat to the exact stone size. See stone seats.
5. Prong and setting access. Make sure the setter can reach and close the prongs.
6. Finger size and comfort. Check the inner diameter and the inside shape.
7. Marks and engraving. Confirm space is left. See hallmark space.
8. Weight. Check the volume and estimated weight against the plan.
9. File format. Export the correct format, such as .stl, at a smooth setting. See file formats.

Test first

For a new design, print a single test and check the fit. It is cheaper than a full batch.

We build models with these checks in mind. See our services.