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Just Another Marble Robot (JAMR)
Just Another Marble Robot (JAMR) is a very simple Arduino based, 3-axis robot that you can build yourself as a school project or as a fun project with your kids. This robot will make your marble track much more interesting.
Despite being tiny it has all the stepper functionality of a larger robot including a high accuracy. With a ramp-up and ramp-down function it moves much smoother that servo controlled robots.
The robot is based on the inexpensive 28BYJ-48 12V stepper motor with the ULN2003 driver that you can buy for around €/$4,- per set. In combination with an Arduino Uno the total cost for this project is around €/$32,-.
On this page you will find all the needed information to start building the robot.
The parts that you need for this robot are:
Download the JAMR wiring diagramClick on the image to download the schematic in PDF-format
Download the JAMR STL filesClick on the image to download the STL files
Download the JAMR Arduino programClick on the image to download the Arduino program