3MF Splitter Online

Use the splitter when a model is too large for the build plate, needs separate color parts, or must be divided into pieces for assembly. You can work with a painted 3MF or use the cutting tools on an STL or OBJ that has no color information.

The browser preview lets you check the model before exporting. This keeps the decision in the same place as the operation instead of relying on a file name or a slicer preview alone.

3MF preserves project structure and painted color information. STL is a geometry-only format, so it is useful for cutting but does not carry the original color assignment. OBJ can be opened with its MTL file when material colors are part of the model.

Files are processed locally in the browser. The current product does not provide server-side conversion or cloud storage for the uploaded model.

Inspect every new face, make sure small pieces are large enough to print, and run a slice in your own slicer. Printer settings, filament choice, supports, and final print strength remain your responsibility.

A 3MF splitter is most useful when the reason for the cut is clear. Use a color split for a painted multicolor model, a plane cut for a clean seam, a sketch cut for an outline, and Fit to Printer when the model exceeds the available build volume. Keeping those jobs in one 3MF splitter workspace makes it easier to preview the part count and choose the next operation without moving between unrelated tools.

The 3MF splitter keeps the source model in the browser while you work. You can open a project, test a cut, undo it, and try a different boundary before exporting. This is especially helpful for a large 3MF where a filename or a slicer thumbnail cannot tell you whether a seam crossed a thin wall or a painted detail.