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A comment on BrachioGraph – a cheap, simple pen plotter.

Re:BrachioGraph – a cheap, simple pen plotter by makotoNagano on Thursday October 17, 2019 @10:28AM (#21282412)
Nice stuff. Raspberry Pis are generally pretty terrible at running servo's though. Adding an intermediate Arduino would work wonders (I appreciate the complexity would jump significantly though)
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Re:BrachioGraph – a cheap, simple pen plotter by DanieleProcida on Thursday October 17, 2019 @10:33AM (#21282473)
Turns, out, it's actually very reliable in practice. I'm trying to work out at the moment just how far I can go with more powerful servos: https://raspberrypi.stackexchange.com/a/104662/42583. There are limits, but they seem to be greater than I expected, especially when the only power to the Raspberry Pi is provided by a MacBook.
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Re:BrachioGraph – a cheap, simple pen plotter by dekhn on Thursday October 17, 2019 @04:34PM (#21286122)
we live in a world where a macbook can power a raspberry pi which powers servos.
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