Skip To Content

We just fixed downloads: every STL now comes straight from fast, reliable storage, saved under its own name, we're making 10,000 STL files and dozens of new tools, so things might break. We'll fix them ASAP.

Lumpy and richly textured, this sodium potassium pump model shows the big ion pump with its large alpha subunit and a smaller beta subunit beside it. Upright helix columns pass through a section of lipid bilayer, while bulging, clay-like domains swell above and below the membrane where the ATP binding site sits. The bilayer block on one side shows tidy round heads and wavy tails for contrast. It suits a cell biology classroom, a physiology study desk or a shelf of protein models.

Free StarForge 3D Viewer

4,623+ 3D Print STL Files

4623 results

Choose Your Membership

StarForge membership tiers and what each one includes each month
Included each month

Starter

Merchant

Merchant+

AI

AI Max

Credits451504501,5004,000
STL Downloadsup to45up to150up to450up to1,500up to4,000
3D ToolsUnlimitedUnlimitedUnlimitedUnlimitedUnlimited
AI 3D Modelsup to4up to15up to45up to150up to400
Sell 3D PrintsIncludedIncludedIncludedIncludedIncluded
Sign up