ABGUL
Parametric three-dimensional models to order

STL, STEP and OBJ: choosing a file

How meshes differ from CAD geometry and what to check before uploading a file to ABGUL.

ABGUL · · CAD · 3D Modeling

Start with the task

ABGUL accepts STL and OBJ for initial print estimates, and STL, STEP and STP for CNC. Support in storage or a builder does not mean a file can be automatically priced in every calculator tab. Check the instructions for the specific upload field.

Mesh and editable geometry

STL describes a surface with triangles. OBJ is also used for polygon geometry and may reference extra resources. STEP exchanges CAD geometry. Renaming the extension does not convert between them. Export from the source application and keep the original project separately.

Check after export

Reopen the exported file. Compare its bounds with a reference dimension: missing units can change scale. Confirm that all required bodies are present, with no stray objects or broken surfaces. For printing, review closed surfaces and wall thickness. For CNC, supply critical dimensions in a separate brief.

Send an understandable package

Use short, distinct file names, and specify the revision and quantity of each part. For an archive, identify its contents and main file. Do not include passwords, keys or other people’s personal data. Recalculate after geometry changes: an old estimate may refer to a different revision.

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