Vertical Windmill Helix

This is not my model…. but it's a shame it's not here.My print, my video… https://www.youtube.com/shorts/y7_rashMtlM SummaryThe construction is very stable and light due to the wave shape. For optimum pressure equalization, it is not closed in the middle. The wind turbine starts to turn in very light wind. Last time there was a storm with gusts up to 120 km / h, without problems for the windmill.The wings are 0.8mm thick and optimized for printing with a 0.4mm nozzle. The windmill is designed to