Testing a pair of triangular rollers by positioning a board and a coffee mug on them and pushing the board sideways. Mixing numerous exposures illustrates the ensuing movement.
A curve of consistent width is a two-dimensional form whose width, as calculated with calipers, is the very same, regardless of the orientation of the curve relative to the calipers. You can extrude these types of a curve into a 3-dimensional roller that will have a frequent top as you roll it about on a flat area. A board supported by a pair of this sort of rollers will go horizontally without having any up and down motion. A circle is a curve of continual width, but it’s not the only just one there are quite a few other folks. A Reuleaux triangle (an equilateral triangle exactly where every single side is a circular arc centered on the opposite corner) also has constant width, and you can use it as the foundation for rollers that search like they shouldn’t get the job done at all. Encouraged by my daughter’s superior college challenge I built an instance out of wood.
Posted by fksr on 2021-02-17 03:34:38
Tagged: , Woodworking , Wood , Triangular Roller , Coffee Mug , Numerous Publicity , Movement Trail , Reuleaux Triangle
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