Making a stepper motor move is easy with an A4988 driver. They’re super straightforward and very versatile, making them very popular for 3D printers and other DIY CNC machines.
You want a robot to move when someone clicks a button on a RESTful website, and the robot reboots every time you click the web page. Here’s how I fixed it.
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In this tutorial I’m going to show you how to recursively generate a well formed maze in Java without overflowing your computer’s stack.
Marginally Clever’s very own Luke Brooks has been working overtime. Not only is he designing a 3D printer, not only does he film and edit all Marginally Clever videos, not only did he help on the Giant Wall of LEDs (coming to World Maker Faire 2015), but he also designs cool portable speaker systems. Made from laser cut parts, hot glue, and determination. At a moderate volume they’ll play for nearly 10 hours. That means it will outlast your phone battery!
Get all the details and the step-by-step pictures on the Vancouver Hack Space forums.
The electronic parts used in the kit are available here:
[products skus=’elec-0031, elec-0032, ELEC-0037, ELEC-0057′]
Controlling a linear actuator is fun and easy. They’re really strong and can be used for all kinds of things: raising your TV out of a hidden pocket; crushing your enemies; or building an RC backhoe or dump truck. I did this entire project in about 20 minutes for around $150 CAD.
