Model painter / STL to colored 3MF / AMS image projection

Apply a color image to a 3D model.

Open an STL or 3MF, load a PNG or JPEG, quantize it to normal AMS-style filament colors and place it on a selected face. Free to use, no account required.

Loading the interactive 3D editor…

Surface image workflow

Use this when the model already exists and the image should become printable color on its surface. Load the model, load the image, place it on the target area, choose the palette size and export a 3MF with separate material regions for OrcaSlicer, Bambu Studio and AMS-style printers.

When to use it

This is the right workflow for lids, covers, boxes, display plates and existing STL/3MF parts where the shape is already modeled and the image should behave like a printable surface decal.

Projection or selected face

Projection mode keeps the placement fast and predictable for mostly flat surfaces. Disable it when you want the image constrained to the selected local face instead of projected across nearby geometry.

Before printing

Open the exported 3MF in the slicer, confirm the material colors, then inspect sliced preview for missing thin lines, excess filament changes and small regions below nozzle width.

MakerTools3D preview after loading an STL model — Step 1: load an STL or 3MF model and confirm it is centered in the browser preview.

MakerTools3D preview with color artwork placed on the selected model face — Step 2: load a PNG or JPEG and place it on the target surface.

MakerTools3D placement controls for moving, scaling and rotating artwork — Step 3: adjust X/Y position, scale and rotation until the artwork fits.

MakerTools3D final browser preview before exporting a color 3MF — Step 4: check the browser preview before exporting the 3MF.

OrcaSlicer preview of the exported multicolor 3MF model — Step 5: open the exported 3MF in OrcaSlicer and inspect the sliced preview.