Corner clamp with pin. By Ohyo56. 11:46 video:
https://www.youtube.com/watch?v=b4a_L0BDndM
Previously:
https://www.homemadetools.net/forum/...246#post150109
https://www.homemadetools.net/forum/...892#post164063
https://www.homemadetools.net/forum/...744#post170867
https://www.homemadetools.net/forum/...158#post176521
https://www.homemadetools.net/forum/...671#post182635
