P

Paul Callahan

Printables (61)

61

Models

659

Downloads

120

Likes

12

Makes

Active since May 2024 · Last upload 08.05.2026

Paul Callahan has published 61 free 3D printable models with a total of 659 downloads and 120 likes. Most popular categories: Puzzles & Brain-teasers, Math, Other Art & Designs, 2D Plates & Logos, Other Gadgets. Models available on Printables. Active since 2024.

Puzzles & Brain-teasers (23) Math (22) Other Art & Designs (9) 2D Plates & Logos (2) Other Gadgets (2) Accessories (1) Winter & Christmas & New Year's (1) Other Ideas (1)

61 Models · Page 1/2

Newest Downloads Likes Makes

Modular Penrose cobblestone system for silicone molds and other applications – Free 3D Model STL

Modular Penrose cobblestone system for silicone molds and other applications

Interlocking Penrose Voronoi Cobblestones – Free 3D Model STL

Interlocking Penrose Voronoi Cobblestones

Masters for Penrose Voronoi suncatcher using silicone-molded resin – Free 3D Model STL

Masters for Penrose Voronoi suncatcher using silicone-molded resin

Fillable master for silicone mold of resin triskelion – Free 3D Model STL

Fillable master for silicone mold of resin triskelion

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

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)

Sierpinski triangle (XOR) snap-fit pieces – Free 3D Model STL

Sierpinski triangle (XOR) snap-fit pieces

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

Margolus Critters layered snap-together tiles – Free 3D Model STL

Margolus Critters layered snap-together tiles

Conway's Life Still Life Tiles (with hidden snaps and improved liftability) – Free 3D Model STL

Conway's Life Still Life Tiles (with hidden snaps and improved liftability)

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

Decorative Penrose braid with 5-fold symmetry – Free 3D Model STL

Decorative Penrose braid with 5-fold symmetry

Lunar New Year 2025: Year of the Snake – Free 3D Model STL

Lunar New Year 2025: Year of the Snake

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

Simple filament welding jig for use with soldering iron – Free 3D Model STL

Simple filament welding jig for use with soldering iron

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

Two-sided disk puzzle and optional jar

Decorative Penrose tile braid – Free 3D Model STL

Decorative Penrose tile braid

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

Penrose kite and dart covered jigsaw with braids

Moore neighborhood tiles for visualizing 2-state cellular automata – Free 3D Model STL

Moore neighborhood tiles for visualizing 2-state cellular automata

Snap together aperiodic monotile ("einstein" or "hat") – Free 3D Model STL

Snap together aperiodic monotile ("einstein" or "hat")

Braided flippable triangles for Penrose tiling – Free 3D Model STL

Braided flippable triangles for Penrose tiling

Penrose tiling based on flippable triangles with hidden tabs – Free 3D Model STL

Penrose tiling based on flippable triangles with hidden tabs

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

Hourglass and W-Toast 2 Puzzles designed by Osanori Yamamoto

Two-color Yin and Yang (7 piece assembly) – Free 3D Model STL

Two-color Yin and Yang (7 piece assembly)

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

Aperiodic monotile or "einstein" tile with hidden tabs

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