Vintage Upcycling With Raspberry Pi and Arduino by Miglino Enrico

Author:Miglino, Enrico [Miglino, Enrico]
Language: eng
Format: epub
Publisher: Ediciones Baleares
Published: 2020-12-31T16:00:00+00:00

bearing I used 3 mm diameter bicycle wheel spheres, bought as spare parts on Amazon.

After both parts were in place I fixed the tooth belt to the bearing driven by the stepper controlled by the Arduino UNO through an L298 motor controller board.

Last-minute update: I found a missing part – my mistake – when the mechanism was in place; I added a small end-stop switch to find the point zero of the torso every time the system is powered on. Also, the switch is controller by a digital GPIO pin of the Arduino.

The torso does not make a full rotation, so the tooth-belt has been tensioned and fixed on the upper part of the flat bearing (the rotating half). With this mechanics, the top body of the mannequin can rotate about 120 Deg in both directions.

In the page below, from top-left to bottom-right the image sequence illustrates the assembly of the torso rotation mechanism as described in this paragraph.





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