Split 3MF by Color Online

A painted 3MF can contain several filament colors on one connected model. The Split 3MF by color workflow follows those painted regions, closes the new cut faces, and leaves the remaining model ready for the next color. Small details that cannot make a printable solid can be pressed in as an inlay instead.

The workflow is useful for multicolor models prepared in Bambu Studio, OrcaSlicer, or PrusaSlicer. You can inspect the pieces before downloading them and undo a split when the result is not suitable.

The tool accepts 3MF, STL, and OBJ input. Only a painted 3MF has color regions to split; an unpainted STL or OBJ should be cut by plane, sketch, or printer size instead. OBJ materials and vertex colors may be read as color when the matching material file is supplied.

A model with very small painted islands, open shells, or overlapping geometry may need Repair & simplify before a clean split. Always preview the exported pieces and slice a test before printing.

Split 3MF by color is one step in a larger print workflow. Use the general 3MF Splitter page for non-color cuts, the Fit to Printer page for oversized models, and the guide for a detailed color-by-color walkthrough.

Use Split 3MF by color when a single painted model should become several files that can be printed with one filament at a time. The 3MF color splitter follows the color assignment already saved in the model instead of asking you to redraw every boundary by hand. That makes it useful for logos, signs, figures, and other multicolor designs where the painted regions are the intended part boundaries.

A Split 3MF by color result is still a geometry operation. The new faces are prepared for export, but the result depends on the thickness and shape of the painted region. If a color is only a thin surface detail, keep it as an inlay or press-in detail when that produces a more reliable print. This is why the preview and the exploded view are part of the Split 3MF by color workflow rather than an optional extra.