Open and Close Sign Board

Based on the idea by Ikeda Yosuke's Open and Close sign design which relies on gravity and relatively joints.
Vedio : https://youtu.be/QG7Hyc2_T9U

Hope you like it, enjoy!

Thanks for sharing by Ikeda Yosuke.
Vedio : https://www.youtube.com/watch?v=cdjuwFD5jmg