HW-504 joystick+base

thingiverse

This lock helps stop patio umbrellas from spinning out of control when you tilt them to block the sun's harsh rays. It fits perfectly on a 37mm umbrella pole and may work with sizes ranging from 36-38mm, although that has not been thoroughly tested. If this helpful hack was worth something to you, consider sending some money my way via paypal.me to help offset the time spent designing it. Your generosity is greatly appreciated!