Precision NURBS,
modeled in mid-air.

Runciter is a spatial CAD environment for designing complex curves and surfaces with your hands. Engineering-grade geometry, sculpted in real space.

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Freehand NURBS

Draw control polygons in space. Curves resolve to true mathematical NURBS — not meshes.

Bezier pen, in 3D

Familiar pen-tool semantics, lifted off the page. Drag handles, snap to planes, refine in place.

CAD-grade export

Round-trip with the tools you already use. Export geometry that survives the engineering review.

How it works

A modeler that respects the math.

Every stroke is a parametric curve. Every surface is editable forever. Runciter keeps the geometry honest so your downstream tools — slicers, simulators, manufacturers — never have to guess.

Hand tracking + controllers, switch any time
Native passthrough on Quest 3
Deterministic, reproducible geometry

VIEWPORT · 01

NURBS / R3

degree 3 · 4 cv

Build the next interface.