Traction engine. By Homemade projects.
1:08 video:
https://www.youtube.com/watch?v=V3biJ5PujxE
9:16 video:
https://www.youtube.com/watch?v=7rNF0KY_fh4
11:33 video:
https://www.youtube.com/watch?v=3cdyVLQ_3-o
1:55 video:
https://www.youtube.com/watch?v=9GNnnBbZXV0
Previously:
https://www.homemadetools.net/forum/...402#post181546
https://www.homemadetools.net/forum/...815#post140294
https://www.homemadetools.net/forum/...257#post138594
https://www.homemadetools.net/forum/...336#post135181
https://www.homemadetools.net/forum/...2579#post96643
https://www.homemadetools.net/forum/...403#post181561