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Slideshow image
slideshow of the Trefoil Knot puzzle


Fulcrum Design Logo
mathematically-themed sculpture puzzles that you assemble yourself
  designed by Tom Longtin


Step-Star 3D Puzzle
Step-Star 3D puzzle

  • crafted in Vermont using upcycled 0.1 inch (2.5mm) thick MDF-type material
  • parts press-fit together - no gluing necessary
  • puzzle comes with illustrated instruction sheet
  • number of pieces: 24
  • completed puzzle size: 5 x 5 x 7 inches (13 x 13 x 18 cm)
  • shipping weight: 8 ounces
  • please contact us for a USPS shipping quote
  • price: $12.00 (USD) + USPS shipping





Trefoil Knot 3D puzzle
Trefoil Knot 3D puzzle

  • crafted in Vermont using upcycled 0.1 inch (2.5mm) thick MDF-type material
  • parts press-fit together - no gluing necessary
  • puzzle comes with illustrated instruction sheet
  • number of pieces: 24
  • completed puzzle size: 5 ½ x 5 ½ x 5½ inches(14 x 14 x 14 cm)
  • shipping weight: 8 ounces
  • please contact us for a USPS shipping quote
  • price: $15.00 (USD) + USPS shipping



 

©2017 Tom Longtin