Woodworker's Journal winter-2009, страница 47
Four-Jaw Chucks are used B^^ m/r 1? to mount hollow bowls ^^ and boxes. They are expensive but worth the cost Use this Full-size Section View Drawing as a guide for shaping the jewelry box. Have your mirror on hand as you turn your pro|ect to ensure a proper fit. The lid is now going to be used as a ram chuck so you can reverse-turn the bottom of the base. Press the base into the lid. It should be held very firmly by the lid (see bottom photo, facing page). Use a bowl gouge and a light touch to shape the bottom. It should be concave to prevent rocking. Wrap up by sanding and finishing the bottom. Shaping the Lid With the box and lid still pressed together, start shaping the lid so it fits flush with the bottom. This gives you a perfect opportunity to exactly match the diameter of the box. It's almost like turning the top and bottom from the same piece of wood. Shape the entire outside of the lid using a skew, and then round the top of the lid for a delicate look. Since you'll probably have a few small scratches in the bottom of the box, go back and resand and finish the entire outside of the bottom (see left photo, next page). At this time, the lid of the box fits too snugly for easy use. Using a straight-edged scraper, remove small amounts of wood from the inside of the lid so the When turning this box, use a moderate speed setting of 300 to 500 RPM. For safety reasons, high speeds should be used only on very small objects, such as pen sets. Straightedge Scrapers are used to remove small amounts of wood and produce a very smooth surface. winter 2009 47 |
