Siren from old 3.5 inch harddisk
Description
Version 2 - print without supports https://youtu.be/WlweDnIe6fU Version 1 - distance 0.2mm is to small https://youtu.be/7TuIpAaVvcY Controller https://www.banggood.com/it/5V-12V-DC-Brushless-Motor-Driver-Board-Controller-For-Hard-drive-motor-3-or-4-wire-p-1018624.html?akmClientCountry=IT&utm_campaign=12686806_1192297&utm_content=11209&p=3Y290412686806201707&cur_warehouse=CN
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