Router plane. By i made this. 14:04 video:
https://www.youtube.com/watch?v=4iUi4jmU2M4
Previously:
https://www.homemadetools.net/forum/...036#post171968
https://www.homemadetools.net/forum/...342#post161705
https://www.homemadetools.net/forum/...2241#post44929
https://www.homemadetools.net/forum/...285#post142093
https://www.homemadetools.net/forum/...491#post135775
https://www.homemadetools.net/forum/...3437#post99090
https://www.homemadetools.net/forum/...2960#post97672