Z-axis stabilizer
thingiverse
Patio Umbrella Lock Designed to Prevent Spinning Prevent your patio umbrella from spinning out of control when tilted to block the sun with this clever lock. Specifically designed for a 37mm umbrella pole, it may also work for sizes ranging from 36-38, but thorough testing is recommended. If you found this solution helpful, consider donating what you think its worth to my PayPal account at paypal.me. Your contribution will help offset the time spent on design and development.
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