
Russian Balls
thingiverse
These Stewart Coffin "Pennyhedron" puzzles are like geometric Matryoshka dolls, with each piece fitting snugly inside the next. Disassembling them can be a challenging task due to the awkward three-fingered grip required to grasp each tiny piece. Nine sizes of these puzzles range from 48mm across (black) down to 8mm across (purple). Each size has right-handed and left-handed part files, with four different surface offset options available. Smaller pieces require larger offsets; try these settings: 1. Purple - minus-100 2. Blue - minus-75 3. Green - minus-75 4. Yellow - minus-50 5. Orange - minus-50 6. Red - minus-50 7. White - minus-25 8. Gray - minus-25 9. Black - minus-25
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