Octagonal bar cut jig. By Ohyo56. 8:05 video:
https://www.youtube.com/watch?v=2ePrt4gKMo0
Previously:
https://www.homemadetools.net/forum/...671#post182635
https://www.homemadetools.net/forum/...173#post180496
https://www.homemadetools.net/forum/...054#post180050
https://www.homemadetools.net/forum/...809#post179065
https://www.homemadetools.net/forum/...506#post177823
https://www.homemadetools.net/forum/...833#post175253
https://www.homemadetools.net/forum/...690#post174625
https://www.homemadetools.net/forum/...464#post173705
https://www.homemadetools.net/forum/...363#post173295
https://www.homemadetools.net/forum/...744#post170867
https://www.homemadetools.net/forum/...997#post164503
https://www.homemadetools.net/forum/...237#post154020