Large circle/arc router jig
I made this jig about 2 years ago for a project but, after building it, I found that it didn't work as intended due to the project, rather than the jig. I got the plans from a shopnotes, can't remember which one.
There is a round disc of ply that you stick to the center of your material, unlock the sliding mechanism, slide to desired diameter and lock it off. The holes in the head part are for my DW625, but there's plenty space to add holes for other routers to the same head. I also made the head detachable so I can use it as a seperate larger base when hand routing.
When everything around you is going to pot, get out in the workshop.