Edit: I updated this when I noticed that the Latchbolt Catch didn’t meet the Latchbolt
correctly and the orientation didn’t match the image. I edited the screenshots and deleted the old screenshots.
This is based on the image of a Steve Latta - Circle Cutter that used to be made by Lie-Nielsen. I used my own dimensions that seemed about right to me.
The last of the Steve Latta stringing tool set that Lie-Nielsen used to make is a Stringing Thicknesser that is fastened to a benchtop with an F-clamp. The dims. are my best guess.
I remeber Michael Fortune had an article about a tool like this in Fine Woodworking Magazine, but I don’t remember the date or issue number.
Edit: Re-posted the skp with correction as seen in @mihai.s ’ video.
Steve Latta, “Add Pop to Panels,” Jul-Aug 2018, Issue #269 FWW magazine - is the reference for this panel with Stringing.He routed with a Dremel with an end mill 0.030-in. and 1/16 in. cutting diameter. He had a Stewmac.com Plunge Router Base #5806 with the Dremel.
He explains in the article that he had to stop short of corners and start again after them, and then he came back with either a chisel or small gouge to cut the corners. He also glued the three inlay strings together in small length segments and clamped them with paper clips. Can you imagine?
I tried to find the latch that Adrian Ferrazzutti used in his article. Lee Valley no longer carries it. I found one similar by Viola of UK. This one has a fancier escutcheon. It would be a challenge making the mortise I’m guessing with gouges and chisels.