Spider Steppers (aka 28BYJ-48 stepper to 1/2 PVC Pipe)

Ever wanted to make something move up and down (like a spider) using a super cheap 28BYJ-48 Stepper?
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updated September 20, 2022

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This model allows you to make automated spiders or anything else that is light enough to move with an ungeared 28BYJ-48 stepper move up and down.  It's designed to hook to ½ inch schedule 40 PVC, but you can hook it to whatever you like.  I run multiple steppers and spiders off a single RPi 2040, but you can use whatever you like.  I'll provide links to some circuitpython code, micropython code, that allows you to move these. 

5v ULN2003 28BYJ-48 stepper and driver boards can be found for $3 per stepper making them the perfect cheap project motor.
Link to Stepper: https://amzn.to/3BugSYQ

It's tough to find RPi Pico 2040's at times, but any CircuitPython, Arduino, or other board will do..
Links to Boards that are easy to work with:
RPi 2040(up to 4 spiders per board): https://amzn.to/3RBfZ6q
QT Py 2040(control a single): https://amzn.to/3es5X8K

Video of it in action:
https://youtube.com/shorts/4XJpeybyHT8

Link to the Spiders I use:
https://www.printables.com/model/273364-black-widow-spider-bendable-model-with-loop

CircuitPython Code that drives 4x steppers:

https://github.com/mperino/Spider-Stepper-2


 

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