It may not be a laundry-folding robot, but this robotic launders line build by [Radical Brad Graham] is pretty neat. He has a 75-foot hanging laundry line from his house to a woodshed, and decided to roboticize it using some bits that were lying around. The result is a simple build that adds push-button control to pull the line back and forward, making it easier to hang everything out to dry. It’s a simple build, but [Brad] did a great job of documenting what he did and why, from mounting the posts that support the line to wiring up the control buttons.
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The heart of this build is an old motor from a wheelchair. Although the motor is over 20 years old, it still works well and was ideal for this sort of slow-speed, high-torque requirement That’s especially true when you consider the weight of the 75-foot line loaded with wet clothes. [Brad] decided to undervolt the engine so it would run off a 12 V battery. At the moment it is running off a car battery, but it is built to run from a smaller battery that is charged from a solar panel. After all, this will be used when the sun is out, so solar power makes perfect sense.
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