Large welding clamp. By LaKema. 8:03 video:
https://www.youtube.com/watch?v=LuJnnVrXg9M
Previously:
https://www.homemadetools.net/forum/...085#post164896
https://www.homemadetools.net/forum/...997#post164503
https://www.homemadetools.net/forum/...995#post164500
https://www.homemadetools.net/forum/...352#post161773
https://www.homemadetools.net/forum/...257#post154089
https://www.homemadetools.net/forum/...159#post145589
