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Salamibot
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This is an automated test tube carousel which holds 20 13x100 mm test tubes. The carousel is controlled by an Arduino, with a serial interface for starting/stopping and manual stepping.
The carousel is held onto the shaft of the NEMA 17 stepper motor using a #4-40 screw and a tapping insert from McMaster-Carr:
https://www.mcmaster.com/99362A200/
The carousel is held onto the shaft of the NEMA 17 stepper motor using a #4-40 screw and a tapping insert from McMaster-Carr:
https://www.mcmaster.com/99362A200/
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