Scroll saw. By Uncle Carpenter's imagine woodworking workshop. 13:20 video:
https://www.youtube.com/watch?v=fC0_EZpkvGc
Previously:
https://www.homemadetools.net/forum/...900#post167789
https://www.homemadetools.net/forum/...890#post160096
https://www.homemadetools.net/forum/...757#post159733
