Ventilation Diffuser

thingiverse

I'm designing a lock that keeps patio umbrellas steady when tilted to block the sun's glare. It fits 37mm umbrella poles and might work for sizes between 36-38, but I haven't tested it thoroughly yet. If you find this design helpful, please consider donating what you think it's worth via my paypal.me account. Your contribution will help cover the time spent on designing this solution.