Longtime artist Jeff Leonard has built a pair of Arduino-driven CNC painting machines with the motivation to grow his toolbox and expand the kinds of marks he could make simply by hand. By pairing the formal elements of painting with modern-day computing, the Brooklyn-based Maker now has the ability to create things that otherwise would’ve never been possible.
Machine #1 consists of a 5’ x 7’ table and is capable of producing pieces of art up to 4’ x 5’ in size. The device features a variety of tools, including a Beugler pinstriping paint wheel, a brush with a peristaltic pump syringe feed, an airbrush with a five-color paint feed system and five peristaltic pumps from Adafruit, a squeegee, and pencils, pens, markers and other utensils.
In terms of hardware, it’s equipped with three NEMA 23 stepper motors, three Big Easy Drivers, as well as an Arduino Mega and an Uno. There are two servos and five peristaltic pumps on the carriage–the first servo raises and lowers the tool, while the second presses the trigger on the airbrush. An Adafruit motor shield on the Uno controls the pumps, and the AccelStepper library is used for the Big Easy Drivers.
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