Pickup Truck Printer
dot matrix | engineering | machines | printers | water
Ryder Calm Down loves to make things. Inspired by how dot-matrix printers lay down ink, he built an oversized print head that attaches to the back of his pickup truck and sprays out water droplets at the right time to create letters and numbers. The system uses a Raspberry Pi to control relays and solenoids that open and close valves.
