How to Cut a Model in PrusaSlicer

To cut a model in PrusaSlicer, select it and choose the Cut tool from the left toolbar, or press C. Position the cutting plane, choose which part to keep, optionally add connectors, and apply. PrusaSlicer splits the mesh along that plane and drops the pieces onto the bed as separate objects.

Make the cut

1. Click the model to select it.
2. Choose the Cut tool from the left toolbar (or press C).
3. Position the cutting plane: drag it, or set a precise height.
4. Choose what to keep: the upper part, the lower part, or both.
5. Enable Place on cut so the piece sits flat on its new face.
6. Optionally add connectors so the pieces register and glue cleanly.
7. Apply the cut.

Connectors and placement

• Connectors are dowel or peg shapes added across the cut. They give the halves alignment features so they fit back together accurately, which matters for anything you glue.
• Place on cut rotates each piece to rest on its flat cut face, giving a clean first layer and usually removing the need for supports on that surface.

Cutting only changes geometry, so your process, filament, and printer settings still apply to the resulting pieces.

When to cut

• Fit the build volume: split a part that is too tall or wide to print in one piece.
• Better first layer: create a flat face to sit on the bed, improving adhesion and often removing supports.
• Print in sections: break a large model into assembled pieces.

Why this matters for a print farm

Splitting oversized parts to fit the bed, or to print without supports, is a routine production decision. Once a part is cut and dialed in, that prepared version should be the one every machine prints, not something re-cut by hand each run.

Printago stores the cut geometry and its settings with the part, so the prepared, support-free version is the one every machine prints, not something re-cut by hand each run. See print farm slicing and how to set up a 3D print farm.