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A variant of Rubik's Cheese 3D-printed for IPP 35 in 2015.
Tom van der Zanden designed and built his own FDM 3D printer. He tried to design a twisty puzzle that could easily be 3D printed and came up with the prototype in image 4.
Given this basic design, he decided to make an IPP-themed puzzle for IPP 35 in Ottawa, Canada, not as an exchange puzzle. In the solved state the pieces read "IPP35", with the 6th piece reading "Ottawa". The two faces have a maple leaf logo, and the color scheme is appropriate.
This puzzle did not have a name, until Hendrik Haaks called it the "Canadian Barrel" and thereby gave it a de-facto name.
Height: 37 mm
Diameter: 41 mm
Weight: 33 grams
Tom made 40 sample of these.
He also made 4 sample which are 1.5 times larger.
Weight: 70 grams
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