Woodworker's Journal 2001-25-2, страница 76

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A set ot differently sized bearings gives one rabbet bit the power of seven. Cuts range from 1/8" to 1/2". and the largest bearing makes the bit a flush trimmer.

Profiling Edges

A decorative profile (that is. a contoured relief) lends an air of character and style to a work piece. The profile can be machined directly on the edge of a tabletop or door, or applied as an attached molding. The range of profiles available is unbelievable. Typically, a profile cutter has a pilot bearing on the tip. The bearing rides along the work edge, ensuring that the cut can't veer into the middle of the stock. Some profile bits can also be

used in the middle of a board. These are called groove-forming profile bits, and they don't have a pilot bearing. When they're used on the edges of work, they're guided by a fence attached to the router (called an edge guide). For example, with an edge guide on your router, you can use a core box bit (a groove-forming bit that cuts a round-bottomed channel) to produce the same edge profile as a standard cove bit (which is used to cut a half-groove on an edge).

Begin assembling your collection of profiling bits with cutters thai produce simple profiles such as roundovers, coves and ogees. Check out a catalog to familiarize yourself with these shapes.

1 find that I use small radius roundovers (1/8" and 1/4") more than larger ones (3/8" and 1/2"). Smaller bits break an edge without making it look bullnosed. (When you want a bullnose look, a roundover bit can produce it in

Today's Shop continues on page 78...

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April 2001 Woodworker 's Journal