Functional Escalator - Stepper Motor Spindle & Motor Casing
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Motorize AlexY_'s Functional Escalator with a 28BYJ-48 stepper: replacement spindle plus a printed motor casing.
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Updated at source:
Model information
- Source
- Printables
- Category
- Mechanical Parts
- License
- Creative Commons — Attribution — Noncommercial
A motorized version of AlexY_'s Functional Escalator Model - Redux (https://makerworld.com/en/models/175289). The spindle is redesigned to be driven directly by a 28BYJ-48 5V stepper motor, and a printed casing holds the motor. Print everything else from the original model.
What's included
escalator-spindle-stepper (STL + STEP): replacement spindle that fits the 28BYJ-48 shaft
stepper-motor-casing (STEP): casing for the motor
Electronics
28BYJ-48 5V stepper motor with ULN2003 driver board: https://link.amazon/B0dW9QDVy (Amazon affiliate link)
Arduino Nano Every, powered over USB; it also powers the driver board
Wiring: driver inputs IN1-IN4 to Arduino pins 7, 6, 5, 4
Any standard 28BYJ-48 / ULN2003 sketch works, for example the Stepper library examples that come with the Arduino IDE. Turn the motor slowly and continuously.
Print settings
Bambu Lab P1P, 0.4 mm nozzle, PLA, 0.16 mm layers (first layer 0.2 mm), 2 walls, 15% gyroid infill, no supports, auto brim.
Video of the build: https://www.youtube.com/watch?v=8gUp_DvAXdY