Beta · invited testers

Mica Slicer

A fast, native 3D-printing slicer written in Rust, for the Prusa CORE One and XL (PrusaSlicer-compatible output) and the Snapmaker U1 (Orca-compatible).

Join the beta See screenshots

What it does today

Mica is young and focused on three printers. Here is what already works in the beta.

Fast

Layers are sliced in parallel and streamed to the output. A large multi-object U1 plate slices in about 6 seconds.

Checked before export

G-code is validated before it is written, so problems show up in the app, not on the printer.

Tree and normal supports

Normal, tree and organic supports, with enforcers, blockers and support painting.

Multi-material

A tool per object or part, color painting, prime and wipe towers, and a cut tool with connectors.

Printer upload and camera

Send prints to your printer over PrusaLink or Moonraker and watch the camera from the app.

In-app updates

New beta builds arrive through a signed in-app updater.

Reads your projects

Opens PrusaSlicer and OrcaSlicer 3MF projects, including plates, modifiers and their settings.

Screenshots

Straight from the app. Click any image to enlarge it.

Prepare view with a 3DBenchy on the Prusa CORE One bed and the settings sidebar — **Prepare.** A Benchy on the CORE One, with printer, filament and process settings in the sidebar.

Preview of a print with organic tree supports under two overhanging arms — **Tree supports.** Organic supports branching up to two overhangs, in the preview.

Snapmaker U1 plate with a two-color painted 3DBenchy, the prime tower and four filament slots — **Snapmaker U1.** Color painting across four tools, with the prime tower placed for you.

The Add printer gallery with cards for the Prusa CORE One, XL, MK4S and the Snapmaker U1 — **Add printer.** Pick your printer from the gallery; nozzles and tools come next.

Download

Mica Slicer is in beta. For now, builds go to testers by invitation only.

Public downloads will appear here once the beta opens up.

macOS (Apple Silicon & Intel)WindowsLinux AppImage

Placeholder No public downloads yet.
Download links go here.