Gnomon

SUNDIAL DESIGNER

Design a real sundial for your own site and wall. Seven dial types from one geometry engine, a live 3D preview under the tracked Sun, and full-size templates, laser-cutter files and 3D models out. Astronomy from AstroEngine, measured against NASA JPL.

Sundial design app for Mac. Draw horizontal, vertical, declining, reclining, polar, equatorial and analemmatic dials for your own latitude and wall from one geometry engine, with the equation of time as a table, a correction graph or an analemma on every hour line. Measure a wall's direction on a satellite map, from a timed plumb line's shadow, or by a compass bearing corrected to true north. Watch the dial stand in place under the real Sun in a live 3D preview for any date and time, then print it full size tiled across any paper with registration marks and a check bar. Export SVG in cut, engrave and score layers for a laser cutter, 3MF and STL for a 3D printer, and GLB, OBJ, USD and USDZ models. Ten visual styles with their own lettering, ornament and materials. Every dial is a document, saved, reopened and recalculated from scratch. Its astronomy comes from AstroEngine, the on-device engine shared across our sky apps and measured against NASA JPL Horizons.