caffeine — License & Provenance

CAS 58-08-2 · C8H10N4O2 · MolGod 3D molecular model

caffeine (CAS 58-08-2) — full MolGod record: all data sections for this substance — properties, safety, regulatory status, spectra, literature.

Identity

Geometry provenance

Preview

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Rendered from this exact STL file, not from a second source. Single material — the STL format carries no colour channel. Colours in the preview are assigned by the renderer from the element palette and are not part of the downloadable geometry.

Engraved variant

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The element symbol is cut into the sphere, not printed on it. That single difference is what this variant is for.

• Print it and you can still read it. The letters are part of the solid, so they survive 3D printing. Pick up the printed model and every atom tells you what it is — no legend, no colour key, no separate sheet. A painted label would vanish the moment the file leaves the screen.
• It cannot lose its labelling. The symbol is geometry, not a texture or a material. Open the file in any viewer, any slicer, any CAD package — on any machine, in any colour scheme — and the letters are still there, because there is nothing to strip away.
• Bond order is visible in the shape itself. Single, double and triple bonds are built as one, two and three cylinders, following the PubChem Kekulé structure, so a double bond looks like a double bond in your hand. An aromatic ring therefore appears as one Kekulé structure (alternating single and double bonds), although in the real molecule its ring bonds are delocalised, intermediate between single and double.
• Teaching and display models that stay correct. Nothing about the identification depends on the software, the render settings or the filament colour.

Why the preview looks the way it does. A carved letter has no colour of its own — on a pale atom it would disappear into the highlight. The preview is rendered from the mesh itself with ray-traced cavity shading, so recesses darken because they are recessed, not because we painted them. What you see is the geometry you will receive. The element colours follow the same palette as the interactive viewer on this site, so the model and the viewer never disagree about what an atom is.

Element symbols are recessed into the atom spheres. Mesh: 305,524 triangles versus 10,464.

Download engraved variant: Caffeine-3D-molecular-model-engraved-CAS-58-08-2.stl (15 MB)
SHA-256 3eca6dd62995ddf8377246dabe503be2e5bd4dedd496736a552f04a8749bd3ae
Validation: mesh validity check PASS before publication (2026-10-14); external cross-check NOT PERFORMED for this model
Recommended print scale: FDM (0.4 mm nozzle, 0.2 mm layer) at least 7.2 mm per Å (model about 49 mm across); resin printer (50 µm) at least 1.7 mm per Å (about 12 mm). Below this scale the engraved symbols become too fine to print. The printer limits are typical values assumed by MolGod, not a test of your printer.

Ready to print · ANT HOUSE v7

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The engraved model on a display base, in one file. The molecule is the engraved variant above, unchanged: only scaled, rotated and positioned as a whole.

• A base that carries the data. Name and CAS number on the front, the raised MolGod logo across the top with the molecular formula, and a QR code to this record underneath.
• Pencil supports, one solid. 11 hexagonal “pencils” (Ø 3.5 / 5 mm, 10.0–41.3 mm long) grow from the base and point at atom spheres, touching them with a graphite neck Ø 1.8 mm, each ending in a 45° cup under the atom. They are part of the model — do not remove them. The slicer’s automatic supports are still needed for the remaining overhangs (see 3D printing settings).
• Already at print size. Unlike the files above, which are in ångströms, this file is in millimetres: base Ø 100 mm. Import it at 100 % — do not rescale.
• Checked geometry. Watertight single solid; the molecule surface is compared with the engraved source file.

Download ready-to-print variant: molgod_caffeine_58-08-2_R3-ready-to-print_g2026-10-28_NO-SUPPORTS_add-supports-in-slicer.stl (21 MB, 450,102 triangles, millimetres) · STL · base Ø 100 mm · single integrated solid

Preview of the 3D-print model — rotate it with your mouse or finger; switch: with supports / without supports

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As printed (with supports)Finished model (supports removed)

Drag to rotate; scroll or pinch to zoom.

How this model prints

Renders (PNG):

For print shops:
Technical data sheet (PDF: drawing, dimensions, print specification) · 588 KB · SHA-256 4161deaafa039710…
Print package (ZIP: STL, 3MF with settings, G-code, step-by-step instructions, design notes with sources, what-to-remove picture, previews, slicer profile, gates report, QC checklist, feedback form, licence) · 55 MB · SHA-256 8ad0b62d8de8af97…

Artefact

License

Licence grant. MolGod Scientific, the creator and copyright holder of the STL mesh of MolGod entity MG_751-125-824-41, variant normal (SHA-256 9aa8d8a1e01adc890f457a9e603129e4da7b8b6296b3a63040914176e7c77ac6), hereby releases it under the CC BY-SA 4.0 International licence. The release covers the MolGod-created mesh only, not third-party source material (see Scope above).

The license above is the legal instrument and is granted by its official Creative Commons deed. This page is the MolGod provenance record for the artefact; it documents the source and the pipeline, and does not impose any condition beyond those of the license itself.