I’m not at all affiliated with this project, just came across it and thought it looked interesting - it kind of resembles the sled from a CD drive tray. I could imagine an open hardware version of the printable files being created if they don’t already exist.
A quick search for the stepper motor drivers used shows sets of 5 for around $15, perhaps pair with a cheaper microcontroller than the Arduino Uno and total BOM costs could be $30 or so.
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[ 3.6 ms ] story [ 24.2 ms ] threadA quick search for the stepper motor drivers used shows sets of 5 for around $15, perhaps pair with a cheaper microcontroller than the Arduino Uno and total BOM costs could be $30 or so.