Upload 3MF, OBJ or STL Files over 10MB may be slow or fail.

Smooth boundary

Pro tool: free to try. Downloading a model edited with it needs Pro.

Area range 20

Left- or right-click near the boundary to adjust it, or draw a line to redraw it.

Split settings

Cut method

Manual cut

Position Tilt

Click a bounding-box face.

Fit to printer

Printer Edge margin

Number both cut faces

Connectors

Cut face per connector

Connectors

Where connectors go

Connector method

Connector side

Connector area

Connector tolerance

Color

Paint mode

Brush size Edge angle

Mesh check

Checking the mesh…

Triangles—

Holes—

Flipped faces—

Non-manifold edges—

Zero-area faces—

Loose pieces (besides the main body)—

Show open edges on the model

Remove tiny loose pieces

Simplify

Triangles to keep

Triangles—

Size

Scale

Printer & copies

Printer Gap between models

Shapes

Color

Sketch

Group

Arrange

Snap grid

Text

Text height Height / depth

Split in place

Add connectors automatically

Selected regions

Split 3D Models to Fit a Printer

Pick your printer and the 3D model is split automatically so that no piece is larger than the build volume. Every cut face is numbered and separate connector pieces are made with it, so even a large model goes together without guesswork after 3D printing.

How to use

Upload a 3D model and scale it to its final size in Size & position.
Choose your printer. If it isn't listed, enter its build volume with Custom size.
Set the edge margin and the connector options.
Press Split to fit.
Drag the round handles on the split planes to move the cuts. No piece grows larger than the printer.
Check the result in the split animation, then download.

Tips

Each cut face is engraved “piece number-joint number”. Faces with the same second number go together.
A connector piece is two square pyramids, 1.5 cm square and each 2 cm tall, joined at their bases. Print them on their own and push them into the matching recesses on both faces.
You get one connector piece per 20 cm² of cut face, up to 9 per face. Change the count with Cut face per connector.

FAQ

Which printers can I pick?

Choose a preset from makers such as Bambu Lab, Prusa and Creality, or add your own printer with its size and keep-out areas.

The pieces need several plates.

Optimize layout can reduce the number of plates.

Split3MF values your privacy. Your model files and intellectual property remain yours.

About

Split3MF splits 3MF, OBJ & STL models into parts for 3D printing.

About

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