C-clamp with thrust bearing. By JamesPark_85. 13:30 video:
https://www.youtube.com/watch?v=Rooy4zDv9a4
Previously:
https://www.homemadetools.net/forum/...159#post145589
https://www.homemadetools.net/forum/...257#post154089
https://www.homemadetools.net/forum/...723#post152046
https://www.homemadetools.net/forum/...827#post140326
