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Atomic and Hard-Case 3D Models for 3D Printing

This collection gathers STL files that sit around the atomic theme: character figures, hard cases for electronics, molecular kits and nuclear-flavoured props. It is useful when you want a specific look rather than a generic model, and when a 3D printer is the fastest way to get a part in the size you need. Polyzon does not confirm whether models are free, their price, license, official status, affiliation, safety or fitness. Check the current terms at the source.

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選定基準：Polyzon編集部 · 本文の更新日：2026年10月13日

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«Atomic and Hard-Case 3D Models for 3D Printing»

The range splits into a few recognisable groups. Character figures lean on atomic-age and comic styling, often with separate limbs or accessories. Hard cases and enclosures are box-like parts with cutouts for boards, batteries or drives. Molecular and chemistry sets are built from repeated spheres and connectors, while props such as keychains and mushroom-cloud shapes are small, decorative prints.

When choosing, open the author's model page and read what is actually listed there: overall size and scale, how many parts the file contains, whether the pieces are meant to be glued or snapped, and whether supports are needed for the overhangs. For cases and holders, check the internal dimensions against the board or cell you plan to use, and note the wall thickness. The material and settings the author mentions are a starting point, not a guarantee, so photos of real prints are worth more than renders.

If the results feel narrow, try related wording. Searches for atomic-age figures, retro sci-fi miniatures, electronics enclosures, battery holders, molecular model kits or nuclear-themed keychains usually surface neighbouring items. Combining a subject word with a format word, such as figure, case, kit or prop, tends to widen the set without losing the theme.

FAQ

よくある質問

What kinds of models appear under this topic?
Mostly atomic-age character figures, hard cases and holders for electronics, molecular or chemistry kits, and small nuclear-themed props. The mix depends on what authors have uploaded, so the same search can return very different objects.
How do I pick the right scale for a figure?
Check the height or scale stated on the model page and compare it with the space you have. If the file is parametric or split into parts, you can often resize it, but small details may suffer when scaling down.
Do these models need supports?
That depends on the individual file. Cases and flat parts often print without them, while figures with outstretched arms or thin overhangs usually need them. The author's page is the place to look for that note.
Can I adapt a case model to a different board?
Sometimes. Models with separate lids, side mounts or parametric walls are easier to adjust. Check the internal dimensions first, then decide whether to edit the file or scale the print.
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