Turn a photo into a printable STL file
Updated August 30, 2026 · Published August 30, 2026
Photo to printed object in three steps: photograph the thing, generate a 3D model for $0.25, download the free STL, and slice it like any other file. PolyMedium reconstructs the shape from the photo (including a synthesised view of the side the camera never saw), so you get a complete solid model, not a flat relief. It captures shape and proportion, not measured dimensions, so you set the final size in your slicer.
How it works
- 1
Photograph the object
Any ordinary photo works; it is restaged into a clean studio reference automatically, so lighting and background are handled for you. The one real material caveat: matte objects reconstruct better than shiny or transparent ones, because glare and glass carry less true shape information.
- 2
Generate the model
Upload the photo and an object costs $0.25 (a person or pet is treated as a character, from $0.75). The pipeline removes the background, synthesises the opposite-side view, and reconstructs a full mesh. If the result misses, a $0.25 retry is the cheapest fix; if it fails outright, you are refunded automatically.
- 3
Export STL and slice
The STL export is free. Load it into Cura, PrusaSlicer, or Bambu Studio, scale it to the size you want, and check the preview for overhangs that need supports. Organic shapes usually print fine; objects with thin protruding parts may want supports or a larger scale.
Why PolyMedium fits
- • Complete solid model, not a flat relief: the unseen side is reconstructed
- • STL export is free and unlimited, alongside GLB, USDZ, and a turntable GIF
- • $0.25 per object; a failed job refunds itself
- • Works from a phone photo, no scanning rig
Try it free
$3.00 starter balance: twelve $0.25 models, no card required.
FAQ
How do I turn a photo into an STL file?
Upload the photo to PolyMedium, generate the 3D model ($0.25 for an object), then download the STL export, which is free. The STL loads directly into any slicer (Cura, PrusaSlicer, Bambu Studio) where you set the print size.
Will the print be the same size as the real object?
No. The model captures shape and proportions, not measured dimensions. Scale it in your slicer: measure one dimension of the real object and scale the model until that axis matches.
Does it print in color?
An STL file carries geometry only, so a standard single-filament print is one color. The model itself is fully textured (the GLB export has the baked color maps) so you can use it as a painting reference, or print on a multi-material printer.
What photos give the best prints?
Almost any photo of a clear single subject; the image is restaged automatically, so lighting and background do not matter. Matte surfaces beat shiny ones, and solid objects beat transparent ones. If a result disappoints, a $0.25 retry is usually cheaper than cleanup in a mesh editor.
Is this a replacement for a 3D scanner?
For dimensional accuracy, no: a scanner measures, this reconstructs from appearance. For getting a printable, recognisable model of an object from one phone photo in a few minutes for $0.25, yes, and it is dramatically less effort.