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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 delinka on Saturday May 12, 2018 @11:53AM (#17054619)
I’d put a big magnet on a two-axis carriage built on extruded aluminum bars. Simple! There might be a better solution, but I’m the wrong kind of engineer to work it out.
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Re:Bruce Shapiro’s Mesmerizing Kinetic Sand Drawing Machines... by toomuchgov on Saturday May 12, 2018 @12:05PM (#17054676)
One axis radial, the other linear?

Like an indexable stepper-motor, with another stepper attached that uses a belt-drive, like an inkjet printer?

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Re:Bruce Shapiro’s Mesmerizing Kinetic Sand Drawing Machines... by mijoharas on Saturday May 12, 2018 @02:05PM (#17055229)
Looks like it does use one radial axis and one linear [0]

[0] https://sisyphus-industries.com/about/

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