Workzone drill

thingiverse

Here's a simple locking device that can keep your patio umbrella in place when tilting it to block the sun's glare. This design specifically caters to 37mm umbrella poles, but might also work for sizes ranging from 36-38mm, although this hasn't been tested extensively. If you find this helpful, consider donating what you think it's worth to my PayPal account at paypal.me. Your contribution will help cover the time and effort invested in designing this solution. Enjoy!