Hi Mike, nice to see a non turner sneaking around our little slippery slope.
You are correct in saying you can use sacrificial pieces around the edges, usually glued on with a paper glue joint. BUT unless that joint is VERY good they have been known to leave the work and cause mayhem around the shop. As I know, to my expense when I had to replace a window pane after a piece went through it. I am only glad it detached away from me and not into the shop (me). Since then I have never used glued pieces, just used up a few pieces of timber until I could turn the corners properly. All you really need is a fast speed, (the faster the better) a really sharp tool, and a bit of nerve. Once you have done it a couple of times it's just like turning a normal bowl.
You are correct in saying you can use sacrificial pieces around the edges, usually glued on with a paper glue joint. BUT unless that joint is VERY good they have been known to leave the work and cause mayhem around the shop. As I know, to my expense when I had to replace a window pane after a piece went through it. I am only glad it detached away from me and not into the shop (me). Since then I have never used glued pieces, just used up a few pieces of timber until I could turn the corners properly. All you really need is a fast speed, (the faster the better) a really sharp tool, and a bit of nerve. Once you have done it a couple of times it's just like turning a normal bowl.