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A comment on Bruce Shapiro’s Mesmerizing Kinetic Sand Drawing Machines (2015). Parent comment

Re:Bruce Shapiro’s Mesmerizing Kinetic Sand Drawing Machines... by glass_of_water on Saturday May 12, 2018 @12:05PM (#17054678)
Beyond how the machine works, I'm wondering how he designed the patterns.
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Re:Bruce Shapiro’s Mesmerizing Kinetic Sand Drawing Machines... by pavel_lishin on Saturday May 12, 2018 @08:04PM (#17056688)
I bet a healthy dose of trial and error, plus software to draw it out without dedicating hours.
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