QRgratis3D - STL parts ====================== STL files don't store colors, so you get two files: 1) sample-keychain-qrgratis3d-1-base.stl -> the base 2) sample-keychain-qrgratis3d-2-code.stl -> the raised QR code and text How to print it in two colors: - Import BOTH files at once into your slicer. - If it asks whether to load them as a single object with multiple parts, say yes. Both files share the same origin: don't move them separately. - Assign a filament to each part (light base and dark code is the safest choice). - Single filament: add a color change at the 3.0 mm layer, where the base ends and the raised code begins. Total size on the bed: 54.0 x 76.2 x 4.2 mm If your printer supports 3MF, use that file instead: it already includes the colors.