P

Paul Callahan

Printables (34)

34

Models

266

Downloads

51

Likes

2

Makes

Puzzles & Brain-teasers (23) Math (5) 2D Plates & Logos (3) Other Art & Designs (1) Other Gadgets (1) Winter & Christmas & New Year's (1)

34 Models · Page 1/1

Newest Downloads Likes Makes

Irish-themed models for St. Patrick's Day – Free 3D Model STL

Irish-themed models for St. Patrick's Day

Year of the Horse, Lunar New Year 2026 designs – Free 3D Model STL

Year of the Horse, Lunar New Year 2026 designs

Year of the Horse, Lunar New Year 2026 designs – Free 3D Model STL

Year of the Horse, Lunar New Year 2026 designs

Modular bases for rhombic dodecahedron (face-center cubic) packing – Free 3D Model STL

Modular bases for rhombic dodecahedron (face-center cubic) packing

Stackable packings of rhombic dodecahedra – Free 3D Model STL

Stackable packings of rhombic dodecahedra

Ball and stick components for rhombic dodecahedron packing – Free 3D Model STL

Ball and stick components for rhombic dodecahedron packing

Rhombic dodecahedron, solid and frame – Free 3D Model STL

Rhombic dodecahedron, solid and frame

Polymer clay cutters for Penrose Voronoi diagram tiles. – Free 3D Model STL

Polymer clay cutters for Penrose Voronoi diagram tiles.

Decorative Holly – Free 3D Model STL

Decorative Holly

Polymer clay cutter for complete pentomino set (5mm squares) – Free 3D Model STL

Polymer clay cutter for complete pentomino set (5mm squares)

Penrose Voronoi diagram ink stamps – Free 3D Model STL

Penrose Voronoi diagram ink stamps

Penrose kite and dart with Voronoi "cobblestone" surface. – Free 3D Model STL

Penrose kite and dart with Voronoi "cobblestone" surface.

Penrose kite and darts with snap fitting and surface bumps – Free 3D Model STL

Penrose kite and darts with snap fitting and surface bumps

Penrose kite and dart with flat jigsaw fitting – Free 3D Model STL

Penrose kite and dart with flat jigsaw fitting

Small and tiny pentomino sets – Free 3D Model STL

Small and tiny pentomino sets

Matching multicolor hexagon tiling (semi-symmetric quasigroup) – Free 3D Model STL

Matching multicolor hexagon tiling (semi-symmetric quasigroup)

Reduced size Penrose kite and dart half triangles (requires glue) – Free 3D Model STL

Reduced size Penrose kite and dart half triangles (requires glue)

Reduced size aperiodic monotile or "einstein" (requires glue) – Free 3D Model STL

Reduced size aperiodic monotile or "einstein" (requires glue)

Connected curves puzzle (20 pieces) – Free 3D Model STL

Connected curves puzzle (20 pieces)

Curve puzzle part 2 – Free 3D Model STL

Curve puzzle part 2

Closed curve puzzle (easy) – Free 3D Model STL

Closed curve puzzle (easy)

Decorative Borromean ring design with inlaid cardstock – Free 3D Model STL

Decorative Borromean ring design with inlaid cardstock

Penrose rhomb tiles with snap fit sides – Free 3D Model STL

Penrose rhomb tiles with snap fit sides

Small Penrose kites and darts with improved snap fittings – Free 3D Model STL

Small Penrose kites and darts with improved snap fittings

Improved rhombus tiles with hidden snap fitting (smaller with new snap design) – Free 3D Model STL

Improved rhombus tiles with hidden snap fitting (smaller with new snap design)

Improved "einstein tiles" (aperiodic monotiles) with hidden snap fittings – Free 3D Model STL

Improved "einstein tiles" (aperiodic monotiles) with hidden snap fittings

Penrose tiles with hidden tabs – Free 3D Model STL

Penrose tiles with hidden tabs

Two-sided rhombus tiles with hidden tabs – Free 3D Model STL

Two-sided rhombus tiles with hidden tabs

Checkered Penrose tile triangles – Free 3D Model STL

Checkered Penrose tile triangles

Two-sided disk puzzle and optional jar – Free 3D Model STL

Two-sided disk puzzle and optional jar

Penrose kite and dart covered jigsaw with braids – Free 3D Model STL

Penrose kite and dart covered jigsaw with braids

Hourglass and W-Toast 2 Puzzles designed by Osanori Yamamoto – Free 3D Model STL

Hourglass and W-Toast 2 Puzzles designed by Osanori Yamamoto

Aperiodic monotile or "einstein" tile with hidden tabs – Free 3D Model STL

Aperiodic monotile or "einstein" tile with hidden tabs

Disk Puzzle with Optional Twist-Lock Box – Free 3D Model STL

Disk Puzzle with Optional Twist-Lock Box