Printer fitting tool
Fit to Printer: Split a Model to Size
When a model is larger than your build volume, Fit to Printer plans a small set of cuts so each piece can fit. Use Fit to Printer to review the planned cuts, move one when needed, and then make the cuts.
How printer fitting works
Choose a printer preset or enter a custom build volume. Fit to Printer checks the model bounds, plans cuts, and reports how many solids should fit. The plan is shown before geometry is changed, which lets you move a cut away from a fragile detail or reset to the automatic plan.
A safer large-model workflow
- Select the printer or enter its usable dimensions and edge margin.
- Review the planned cut count and the pieces shown on the model.
- Move a cut if it crosses a detail, thin wall, or poor assembly location.
- Apply the plan, then add connectors or labels if needed.
- Export and slice each piece with your printer profile.
Fit is a geometry check, not a print guarantee
A piece that fits inside a volume can still need supports or a different orientation. Leave room for the brim, skirt, nozzle clearance, and your slicer’s safety margins. The tool uses the dimensions you provide and cannot inspect your physical printer.
Input and output formats
Open 3MF, STL, or OBJ. Export plain 3MF and STL parts for a general workflow; the Bambu Studio project export is an advanced download that follows the current Pro access rules.
Fit to printer for oversized models
Fit to Printer is designed for the common case where a model is correct in scale but larger than the available build plate. Instead of shrinking the whole model, the planner can divide it into pieces that fit the selected volume. Use Fit to Printer when preserving the original size matters, then review each proposed cut before applying it.
The Fit to Printer workflow is a planning aid, not a promise that every piece will print without supports. A cut near a curved surface, a thin wall, or a hidden cavity may be geometrically possible but awkward to orient. Move the cut, check the preview, and use Fit to Printer again or open the general 3MF splitter or 3MF cutter pages when you need more manual control.
Printer dimensions that affect the plan
- Enter the usable X, Y, and Z volume rather than the advertised outer frame size before you use Fit to Printer.
- Leave an edge margin for the brim, skirt, purge line, and the safety space used by your slicer.
- Check whether the planned pieces can lie flat or whether their orientation will add support material.
- Plan connectors after the main fit so a pin or hole does not push a piece outside the volume.
- Slice one representative piece first; a volume check cannot predict warping, support failure, or assembly strength.
Try Split3MF in your browser
Open a real model, preview the operation, and decide what to export.
Try a sample model