Describe it, Forma designs it
“A 2 by 3 Gridfinity bin for my bits”: the assistant picks the template and sets its dimensions, and a deterministic geometry engine builds the part. Parameters are checked before every build.
Native application for Mac, iPad and iPhone
Forma
Describe it,
then print it.
Describe the object you need and Forma designs it. The assistant picks a template and sets its dimensions, then a geometry engine builds the part, checks that it prints well and prepares the 3MF. The AI never draws geometry: it only chooses parameters.
Download for Mac
Version 1.0 · 6.1 MB · macOS 27 or later, Mac with Apple silicon
Signed with a Developer ID and notarized by Apple
01
From a sentence
Features
From a sentence
to a printed part.
You stay in control
Adjust every dimension with a slider, or carry on the conversation: “a bit taller, no label”. The 3D view updates instantly.
More than fifty templates
Storage, boxes, fasteners, plates, workshop, home, bricks, mechanics and basic shapes. For anything outside the catalogue, the assistant composes a recipe from simple shapes.
Ready to print
Wall thickness, overhangs, bridges and islands checked, weight and print time estimated, and the face to put on the bed suggested.
The dimensioned drawing
Views, sections and dimensions redraw live with every change. Print the drawing as a PDF.
Measure
Photograph an object next to a bank card: Forma traces its outline to within about half a millimetre and turns it into a plate, a shadow-board insert or a Gridfinity bin. In the 3D view, the Measure tool gives distances, angles and diameters.
Parts that fit
Print profiles per printer and material, hole compensation calculated from a calibration part, adjustable fit clearances. Share your profiles over AirDrop.
On your device
The assistant runs with Apple Intelligence, on device, with no network. If you choose, it can use Claude with your own API key; on the Mac, the Claude app can also drive Forma.
3MF, STL and your other apps
Export as 3MF or STL, open the part in your slicer with one click, or add the file to your Schama catalogue. Siri and Shortcuts on Mac, iPad and iPhone.
02
One sentence,
Preview
One sentence,
one part that fits.
Eight Mac screens. For now they show the app in French; screens in English, and those of the iPad and iPhone, will follow.
One sentence is enough. Suggestions and the template catalogue are a click away.
“A 50 mm angle bracket for M4 screws”: the part in 3D, its dimensions in the inspector, its drawing as a thumbnail.
Sorted by family in the sidebar: storage, boxes, fasteners, plates, home, bricks, mechanics…
Dimensions, walls, compartments: the 3D view follows every change.
Print profile, printer bed, hole accuracy and printability findings, in the Printing tab.
Sections, dimensions and title block, redrawn with every change, ready to print as a PDF.
Distances and diameters, snapping to vertices, edges and holes.
The suggested orientation, the template and its parameters inside the 3MF, and Add to Schama.
03
By voice,
Siri, Spotlight & Shortcuts
By voice,
or in a shortcut.
2 Siri commands and 2 actions in the Shortcuts app, on Mac, iPad and iPhone.
Siri commands
Generate Object
- “Generate an object with Forma”
- “Make a part with Forma”
- “Create an object in Forma”
Export Last Part
- “Export the last part from Forma”
- “Export the last Forma part as STL”
Actions in the Shortcuts app
- 01Generate ObjectDescribe the object: Forma picks the template, sets its dimensions, checks printability and returns the file ready to slice. The part is added to recent projects.
- 02Export Last PartExports the part from Forma’s most recent project, with the active print profile.
04
Your parts
Private data
Your parts
stay yours.
No account, no trackers, no data collected. Rapinology has no server: with the default assistant, nothing leaves your device.
On device
Apple’s model reads your descriptions offline. Geometry, analysis and the drawing are always computed on the device.
Claude, if you choose it
With your own API key, only the description and the part’s parameters go to Anthropic. Never a file.
The photo stays here
Measuring from a photo processes the image on the device: it is neither saved nor sent.
05
Support
A question or need help?
The assistant, templates, printing, export: the support page covers the essentials, and we read every message.
Visit support →