3D modeling apps

3D modeling apps

Two free programs for 3D design and 3D printing. Pick the one that fits the way you work.

App 1 · Easy 3D modeling

Layerling Desktop

Easy 3D modeling for 3D printing. Works on your computer, even without internet. No account, no subscription, and what you build stays with you.

Layerling Desktop — 3D editor with a model on the workplane
Download

Pick your computerv1.117.1

Click the picture that matches your computer. The file downloads, then you open it and follow the installer.

Not sure which Mac you have? Click the Apple menu → About This Mac. If it says "Chip: Apple M…" pick Apple Silicon, if it says "Processor: Intel" pick Intel. Installing for the first time? See the quick help below.

What it does

Simple to start, serious when you need it

As easy as Tinkercad, with a few big steps towards Fusion 360. Made for people who print what they design.

Offline and private

No account, no cloud. Your designs are saved automatically on your computer.

Exact CAD geometry

Chamfer and fillet edges, hollow out bodies, sketches with exact measurements, threads, patterns.

Exchange with other programs

STEP, STL, 3MF, OBJ and SVG in and out. Use it before Bambu Studio, Orca Slicer or Fusion.

Made for printing

Profiles for about 220 printers, overhang warning and a filament estimate.

Works with an AI helper

Connect Claude through MCP and let it build or change the model together with you.

Your language

Slovenian, English, German, French, Dutch, Polish, Czech, Hungarian and Russian.

Development

What's new

A new version appears every time the original Layerling is updated. This list is the latest changes.

1.117.1 2026-10

  • Surface texture on the faces you pick; a flat torus keeps its hole; keys for the snap grid; a filleted tube stays round when resized; deleting a sketch point changes only its neighbours.

1.117.0 2026-10

  • Import, Export and Attachments windows can be moved; a quicker first visit (about 10 MB less); faster STEP files, cylinder wrapping and edge tool.

1.116.1 2026-10

  • STEP assemblies keep every body in its colour; position measured from the middle or the edge; backups restored to the server keep their picture; narrow holes closer together; groups and bundles shown at a glance; a server folder for each user.

All versions and full change list

About this version

Who makes what

Layerling is an open-source 3D modeling program by Stefan (henmedia), licensed under AGPL-3.0. It runs in the browser.

Cassette Deck Service builds the desktop version around it: a program you install, with automatic saving, a shared folder, a connection for AI helpers, custom fonts and Slovenian first in the language list.

The original Layerling is not our work. All credit for the program itself goes to its author.
Links

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App 2 · Parametric CAD
SolidCraft by CDS

SolidCraft by CDSv0.25.1

Parametric 3D CAD for real parts. Sketch with exact dimensions, build solids on an editable timeline, and change one number to see the whole model rebuild. It can use two screens: the model on one, the tools on the other.

SolidCraft by CDS on two screens: the model on one, the tools on the other
Screenshot coming soon
Two screens: the model gets a whole screen, the tools sit on the second one.
SolidCraft by CDS: main window with the 3D model
Screenshot coming soon
Main window: only the model.
SolidCraft by CDS: tools window with menu, ribbon, timeline and parameters
Screenshot coming soon
Tools window: menu, ribbon, timeline, browser and parameters.
Download

Pick your computer

Click the picture that matches your computer. The file downloads, then you open it and follow the installer.

Other formats (Windows MSI and portable ZIP, Linux DEB and RPM) and all versions are on GitHub. The program is not signed yet: on Windows choose More info, then Run anyway. On a Mac, see the quick help below. On Linux, right-click the file, open Properties and allow executing it as a program.

What it does

Real CAD, now on two screens

A serious parametric modeler for people who make parts that have to fit. Free and open source.

Two screens

The model on one screen, the tools on the other. Turn it on in the settings under Interface.

Parametric

Sketches with exact dimensions and constraints, and an editable timeline. Change a number and the model rebuilds.

Solid features

Extrude, revolve, sweep, loft, fillet, chamfer, shell, holes, threads and patterns.

Exchange with other programs

STEP, IGES, 3MF, STL, OBJ and glTF, where supported. Use it before Bambu Studio or Orca Slicer.

In Slovenian

The whole interface also speaks Slovenian, next to many other languages.

Works with an AI helper

A built-in MCP connection lets an AI helper such as Claude model together with you.

About this version

Who makes what

SolidCraft is an open-source parametric CAD program written in Rust by the SolidCraft contributors. It is licensed under MIT or Apache-2.0, at your option.

Cassette Deck Service adapts it as SolidCraft by CDS: a separate window for the tools so the model gets a whole screen, a Slovenian interface, and our own name and logo.

Based on SolidCraft by tangency-labs. Copyright © 2026 SolidCraft contributors. The original is not our work. All credit for the program itself goes to its authors.
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From model to print

Our own 3D models, ready for printing, are on MakerWorld.

3D models on MakerWorld
Help

Quick help

Windows says "Windows protected your PC"

This message appears for programs from small publishers. Click More info, then Run anyway.

Mac says the app cannot be opened
Is it really free?

Yes. Both the original and the desktop version are free and open source.

Where are my designs saved?

On your computer, automatically. Nothing is uploaded anywhere.

Do I get updates?

Yes. The app tells you when a new version is available, and this page always offers the latest one.