Tests a pair of triangular rollers by placing a board and a coffee mug on them and pushing the board sideways.
A curve of constant width is a two-dimensional shape whose width, as measured with calipers, is the identical, no matter of the orientation of the curve relative to the calipers. You can extrude these types of a curve into a a few-dimensional roller that will have a constant top as you roll it around on a flat surface. A board supported by a pair of these rollers will go horizontally devoid of any up and down motion. A circle is a curve of consistent width, but it can be not the only one there are several some others. A Reuleaux triangle (an equilateral triangle where just about every side is a circular arc centered on the reverse corner) also has continual width, and you can use it as the basis for rollers that appear like they shouldn’t function at all. Inspired by my daughter’s substantial university project I made an example out of wood.
Posted by fksr on 2021-02-17 03:34:38
Tagged: , Woodworking , Wooden , Triangular Roller , Coffee Mug , Reuleaux Triangle
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