PrintPal Filament Painter

What is PrintPal Filament Painter?

PrintPal Filament Painter is a free browser tool that turns a picture into a HueForge-style filament painting. You load a PNG, JPG or WebP image, or try the built-in sample, and the tool maps brightness to height so that stacked layers of different filament colors rebuild the picture. Everything runs on your own computer, and you can generate and download without an account.

The side panel holds up to eight color layers, ordered bottom to top, plus a button that matches those layers to the main tones in your image. Sliders cover width (30 to 300 mm), total height, base thickness, resolution, brightness, contrast and smoothing. You also pick a print layer height from 0.08 to 0.20 mm, choose whether dark or light areas stand tallest, and set a smooth or stepped surface. The 3D view switches between a color preview and a height map, and a stats panel lists every swap height.

Export gives you a ZIP with an OBJ and MTL file so Bambu Studio and similar slicers see the color groups, a plain STL, and a text print guide. It suits makers who want to try filament painting before buying desktop software, whether they swap filament by hand or use an AMS or MMU.

What you can make

• Filament-painted photo portraits
• Pet and family photo panels
• Logo and album cover wall art
• Landscape scenes with color gradients

How to use PrintPal Filament Painter

1. Open the Filament Painter and drop in a PNG, JPG or WebP image
2. Set up to eight color layers, or let Auto-Pick match them to the image
3. Adjust width, height, base, layer height and contrast while watching the preview
4. Export the OBJ ZIP or STL together with the print guide
5. Slice with a pause or AMS swap at each listed height