Posted: Wed Dec 10, 2008 2:21 am
I forgot to mention - the angle of the chisel to the turning has a lot to do with the ease and feel of the cut. In Scraping, the chisel attacks the turning in almost a perpendicular angle. After rounding, done with a gouge, scraping is the method most used by newer turners. Scraping can give the turner the shape he wants, but is a bit slower than cutting and does tend to rip portions of more porous woods.
I personally had a hard time in learning a cutting (Shearing) method of shaping and struggled quite a while to try to get away from scraping. Finally at a traveling session with Rick Davis, I learned to ride the bevel. Here's how I would describe how to cut rather than scrape:
First lay the tool on the tool rest and the back of the tool on the turning. Then slide the tool back across the tool rest until the bevel of the tool is on the turning. Holding the tool firmly slowly let the sharp edge of the tool touch the turning wood. Bingo! it's now slicing, rather than scraping.
I'm still learning how to shear using the skew!
I personally had a hard time in learning a cutting (Shearing) method of shaping and struggled quite a while to try to get away from scraping. Finally at a traveling session with Rick Davis, I learned to ride the bevel. Here's how I would describe how to cut rather than scrape:
First lay the tool on the tool rest and the back of the tool on the turning. Then slide the tool back across the tool rest until the bevel of the tool is on the turning. Holding the tool firmly slowly let the sharp edge of the tool touch the turning wood. Bingo! it's now slicing, rather than scraping.
I'm still learning how to shear using the skew!