Colors stack at increasing heights — print with a filament swap at each layer
Detail is how sharp the print is — more pixels means finer detail, like DPI on a photo. It does not set the physical size (you'll set that under Export as Print size). Layered models are built from per-pixel blocks, so files grow fast with Detail — 250–350px is plenty for a keychain. Raise it only if edges look blocky.
For transparent PNGs, the alpha channel is used automatically — no tolerance needed. For solid backgrounds, flood-fills from all 4 corners. Raise tolerance if fringe remains around edges.
For enclosed gaps the outer Background Removal can't reach. Turn on the cut tool, then click a gap on the Original image (top panel) to punch it through as a real hole. Click a cut again to restore it. Results show in the Color Preview.
Detects the main colors in your image using k-means clustering. Each color becomes a separate flat STL piece. Click a swatch to adjust a detected color. Uncheck a color to exclude it from export.
Add a mounting point: a hole punched through the print, or a ring loop on the edge.
Builds one solid model where each color sits at its own height (stacked in the order below). Exports a single STL plus a list of heights to swap filament at — load one color, print, and swap when prompted.
⚠ This is your final size — import into your slicer and print at 100%. Resizing in the slicer will also resize the keyring hole.