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3D Printed Flip Dot Display #3 - Magnets. How do they work again?
Mechanical 7-segment Display, most simple and smooth
Flip up Red Dot sight $44
10 Segment Clock
Erecting Flap Clock - 3D printed
Flip Board: Full-Screen Split-Flap Display
Maker Update: DIY Flip Digits
Making a PCB Motor spin 30,000 RPM FASTER