Native MSLA slicer · Early access

A resin slicer that cuts clean.

Written in Rust with its own GPU viewport. Tree supports and voxel hollowing that run at full speed, a layer view you can actually read. Nothing in a browser tab, nothing waiting on a spinner.

Get early access See the workflow
Runtime
Native Rust
Viewport
Own wgpu renderer
Footprint
~48 MB executable
The real layers of a 91 mm miniature, sliced by Breadslicer. Scroll to build it.
01 / Workflow Transform · 1 of 5

Five tabs, left to right. Done.

The whole job lives in one tab bar, in the order you actually work. These are real captures of the app, and every time on this page was measured on one real run with the model below: scroll and the run plays back.

TransformHollowSupportsSliceExport Breadslicer
Breadslicer's Transform tab: a model on the build plate, moved with a live distance readout. Breadslicer's Hollow tab: the model with its translucent cavity preview and the wall thickness controls. Breadslicer's Supports tab: tree supports generated under a miniature. Breadslicer's Slice tab: the model cut at a layer next to that layer's pixels, with time and resin estimates. Breadslicer's Export tab: writing the print file for the selected printer.
One real run, measured you waited 0.00 s
  1. 0.63 sWindow ready
  2. 0.60 sOpened wolverine-breadslicer.stl92 MB · 1.9 M triangles
  3. 0.81 sLive cavity previewwall 2 mm
  4. 2.1 sBackground: model scanned for supportswhile you look at the cavity
  5. 3.2 sBackground: supports generated aheadready before you ask
  6. 0.17 sGenerate → 124 supports on screentaken from the run made ahead
  7. 0.79 s913 layers sliced1 h 40 m · 66.2 ml · 77.4 g
  8. 13.8 sPrinter file written.ctb · 23.9 MB · Saturn 3 Ultra

01 · Transform

Move it like you mean it.

Press G, R or S and drag. A live chip reads distance or degrees as you go, and axis guide lines keep you honest. Or type it in the numeric inspector: position, lift, rotation, size.

0.60 s to open a 92 MB, 1.9-million-triangle miniature

02 · Hollow

Save resin without guessing.

A translucent cavity preview that follows the wall slider live, a Recommended thickness one click away, fine ±0.1 and ±1 mm steps, and drain holes before or after.

0.81 s for the live cavity. Meanwhile the supports are being made in the background.

03 · Supports

Hold it up, by hand or in one click.

Trunks, branches, leaves, braces and rafts, prepared in the background while you worked, so Generate is often instant. Add with A, remove with X, with a live preview before every click.

0.17 s from Generate to 124 supports on screen: they were ready before the click

04 · Slice

Read every layer before the printer does.

Print time, resin and weight. Then a split view that zooms to 32× with crisp, honest pixels. Sealed cavities slice correctly: what you see is what gets exposed.

0.79 s to slice 913 layers

05 · Export

Write the file. Go print.

The file your printer reads, with a progress readout you can trust. The app stays responsive while it writes, and your project keeps its state, so a last-minute fix is one tab away.

13.8 s to write the 23.9 MB printer file

02 / Hands on Interactive schematics · not screenshots

Try the ideas before the download.

Four small working models of what the tabs do. Schematic, not the real renderer, but the behaviour is the point.

Transform · drag on X01
Drag the model along X. Arrow keys also move it. The chip shows the live distance. +0.00 mm G · drag · X locked

Gestures with a readout.

Drag the model. The chip is the same idea as in the app: distance while you move, degrees while you rotate, and a guide line on the axis you're on.

Supports · generate02
Press Generate to grow tree supports under the model. Preview add shows a green candidate; preview remove marks one in red. A add X remove pre-computed in the background

Already generated by the time you ask.

Supports are computed while you transform and hollow, so Generate is often instant. Hand-edit with live previews: green before you add, red before you remove, one undo per click.

Hollow · wall thickness03
Cross-section of a hollowed model. Move the wall slider to change the cavity; toggle drain holes. wall 2.00 mm cavity 73 % of volume · illustrative

Thin walls, no surprises.

A voxel hollowing engine with a live translucent cavity preview, a Recommended wall one click away, fine ±0.1 and ±1 mm buttons, drain holes before or after. Sealed cavities slice correctly.

Slice · layer view04
1×
620

Numbers first, then every pixel.

Time, resin and weight estimates, then a split view that scrubs the model and the layer together. Zoom to 32× with no interpolation: a one-pixel island looks like a one-pixel island.

03 / Built native Rust · Slint · wgpu

No browser underneath.

Breadslicer is a Rust application with a Slint interface and its own wgpu viewport. Not a web app wearing a window. It shows at startup, on disk, and in how the viewport feels under your hand.

RustLanguage, end to end. Memory-safe geometry, no garbage collector in the loop.
Slint + wgpuNative UI toolkit and a purpose-built GPU viewport. No Electron, no WebView.
~48 MBOne executable. Light on disk, quick to start.
Background jobsSupports and hollowing run off the UI thread. Cancel, undo and stale-result handling are part of the design.
Measured, not guessedEvery engine change is checked against reference scenes, byte for byte, before it ships.
AGPL-3.0Free software. The source opens with the first public build.
04 / Roadmap No dates, no promises we can't slice

What's in the oven.

  1. Coming

    Guided resin calibration

    A walk-through that gets exposure right for a new resin without a spreadsheet.

  2. Coming

    Structural support checks

    Force-based analysis that flags supports likely to fail before the print does.

  3. Coming

    Split pre-supported STLs into bodies

    Pull a pre-supported file apart into model and supports so each can be edited on its own.

  4. Coming

    Community bug reporting via Discord

    Report from inside the app, with the context attached, straight to the people who fix it.

05 / Early access Small batches while the edges get sanded

First slices, soon.

Breadslicer is in early access. Builds are being handed out in small batches. The download will appear here, and so will the Discord.

Download Coming soon Join the Discord Coming soon

No sign-up form yet. When early access opens, this page is where it opens.