Moire Pattern Generators

thingiverse

Four two part ornaments. Each part holds a pattern and the parts can be rotated with respect to each other. Classic moire patterns are formed when two identical patterns are overlaid and slightly offset. These ornaments exhibit that behavior. In addition two unrelated types can be rotated against each other making many curious patterns. A simple openSCAD program which illustrates the rotation of the ornaments is included. Print Settings Printer Brand: MakerBot Printer: MakerBot Replicator (5th Generation) Rafts: Yes Supports: No Resolution: 0.2 mm Notes: These large flat objects can be printed directly on the build platform. However printing with a raft reduces their tendency to curl at the edge. Makerbot software allows the distance from the raft to the printed object to be increased to aid in the removal of the raft. Post-Printing How to Use the Ornaments The ornaments can be adjusted to show an interesting pattern and used as window decorations - see the included picture. When viewed over a piece of white paper and quickly rotated back and forth the somewhat surreal creation of a moire fringe is observed. To make the ornaments easy to rotate it may be necessary to use sand paper and a bit of lubricant. The bumps at the outer edge of the inner parts are meant to make rotation easier.