Merge (bridge gap)

Union that fills the gap between parts so they print as one.

Merge is a Union that also bridges blank space: shapes separated by a small gap are joined into a single connected, printable solid by a smooth web across the gap. The bridge distance is auto-sized from how far apart the parts are; select the Merge in the scene tree to retune "Bridge gap" in the property panel. Larger values also round the inner corners more. Non-destructive — ungroup to recover the originals.

1. Select two or more shapes that are close but not touching.
2. Open Combine → Merge (bridge gap).
3. They fuse into one connected body, with the gap bridged.