About a year ago I was into (as current argot has it) sundials. I made quite a few. Alas, one of them broke. It dropped on the floor, and the bottom portion of the dial itself broke. Sigh. Although the material cost on these things is zero, I have usually put in quite a bit of time carving the numerals and marking out the dials. The one that broke was an equatorial, too. Easiest to mark out, hardest to get the inclination just right. The stylus (the pointy thing that casts the shadow) must be exactly parallel to the polar axis of the earth. That is, it must tilt at an angle equal to your latitude (62 deg in my case). Well, I decided to repair it. So the bottom part of the semicircle that forms the dial had broken off. I built a replacement piece out of scrap wood, and then I cut a groove in it with my tiny Lee Valley rabbet plane. Now I had to make the dial fit into the groove. So I set it up on the Taig lathe with a milling attachment.
myfordboy for the tip. In the foreground, the slottted piece I must fit. Later I will cut it to shape. And to the scrap board I have attached a pair of very small C-clamps which (by serendipity) I found at a flea market a couple weeks ago. Very small clamps are hard to find. Now the dial is stable and I can mill it down to fit the groove in the slotted piece. I am actually routing on the lathe. Only we call it milling!
In the end it does not look so bad.