Correct scale
Choose millimetres or inches accurately because STL itself has no unit metadata.
PREPARE A BETTER UPLOADSTL file guide
STL file guide
for reliable estimates.
A clean, correctly scaled STL helps the slicer produce a more useful preliminary weight, print-time and price estimate.
Closed mesh
A watertight model is easier to interpret than geometry with open edges or damaged surfaces.
Build volume
A single part should generally fit within approximately 256 × 256 × 256 mm.
01 / GUIDE
Checks performed after upload
The estimator parses the file and reports dimensions, geometric volume, triangle count, build-volume fit and likely mesh condition before slicing.
- Binary or ASCII STL parsing
- Dimensions and scale
- Triangle and volume checks
- Possible open edges
- Large-model guidance
02 / GUIDE
Large models
A model larger than the single-part print area is not automatically impossible. It may be redesigned or divided into sections, but joins, alignment and strength require manual review.
03 / GUIDE
Supports and orientation
Overhangs may require temporary support structures. Orientation changes surface quality, strength, support usage and print duration, which is why the final production review can differ from an automatic estimate.
COMMON QUESTIONS
Useful details before you begin.
Does STL contain the model units?+
No. Select the correct units during upload; millimetres are assumed by default.
What happens if the mesh has open edges?+
The model may be sent for manual review. Some files can be repaired, while others require changes to the source design.
Can I upload OBJ or 3MF?+
The current public estimator accepts STL only.
START YOUR REQUEST
Have a file or an idea?
Use the estimator for a ready STL, or send references and measurements for a modelling review.