Spiral Up
Continuously increases Z along the path length, creating a spiral. This is the equivalent of "vase mode" in traditional slicing — a single, uninterrupted extrusion.
Block
Interactive preview is available in the interactive reader.
Parameters
start Z (mm)- Z height where the spiral begins. Typically one layer height (e.g. 0.2 mm) above the bed.
end Z (mm)- Z height where the spiral ends — the final height of your print.
geometry- Statement slot — place geometry blocks (Circle, Polyline, etc.) here. The 2D paths are lifted into a continuous 3D spiral.
How it works
Spiral Up takes flat 2D geometry and stretches it vertically in a continuous spiral. Z increases smoothly along the path length, so there is no layer change, no Z-seam, and no retraction. This produces the smoothest possible surface.