Formo

Guides

Everything on turning a description, photo, or image into a printable 3D file — no CAD required.

AI STL Generator

Describe a part in plain words and get a validated, printable STL/3MF/STEP file.

Photo to 3D Print File

Turn a photo — a portrait for a lithophane, or a broken part — into a printable file.

Replace a Broken Part

Photograph a snapped bracket, clip, or gear and get a printable replacement.

Image to 3D Print

Skip the Inkscape-to-CAD vector pipeline — turn a JPG or PNG into a printable file directly.

AI Bracket & Mount Generator

Describe a custom bracket, mount, or enclosure and get a file that fits.

3D Printing Without CAD

For makers who already print and slice, but don't want to learn CAD for one-off parts.

Fix Non-Manifold Edges

What non-manifold geometry is, how to repair it in Blender, and how to skip the repair step.

Design for 3D Printing (DfAM)

Watertight is not enough — wall thickness, overhangs, fits, and orientation for AI-generated STLs.

AI Miniature Generator

Describe a D&D or tabletop figure and get a printable STL — no ZBrush or Blender.

What Is an STL File?

What STL stores, why printers use it, how it differs from OBJ/STEP, and how Formo builds one from text.

Free AI 3D Generators Compared

Hands-on July 2026 look at which free AI 3D tools actually let you download a printable file.