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allowing for movement in a new direction
Business Card jig
The slotted mounting allows for 12
All kits now ship with universal cross pins that fit both 6
Solids Of Constant Width - Variety of 4 shapes Phone Stand allowing for movement in aSet of four Cones of constant width with one of each Triangle, Hexagon and a Heptagon and Sphere. CNC machined in Canada out of brass or aluminum bar stock. Approximately 1" in diameter. These non spherical solids amazingly have constant width in every directionallowing them to roll smoothly. They are derived from two dimensional curves that were put into use by the 19th century German engineer Franz Reuleaux.
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