Woodworker's Journal Summer-2008, страница 38

Woodworker

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Metal spacers help set up cutters correctly on the spindle, while a variety of throat plates accommodate the different diameter cutters.

and dust. Most shaper tables also have a standard 3/8"-deep, 3/4"-wide miter gauge slot, useful for guiding cross-grain cuts with either a standard miter gauge or custom jigs.

Spindle Sizes and Features

Different shaper models are distinguished by the size of their spindles. Common spindle sizes include 1/2", 3/4" or 1M" diameter shafts. European shapers typically have 30mm spindles. Motor size is proportionately related to spindle size, and hence, the thicker the spindle, the higher the horsepower.

While professional cabinet shops need shapers with big W (or 30mm) spindles that can run the biggest cutters and take massive cuts, most small shops rarely need machines with that kind of capacity. A versatile design feature found on many modern shapers is interchangeable spindles that allow a single machine to handle spindles of several different diameters. For example, my 2 HP JET JW-34L shaper accepts 3/4" and 1" spindles (a 1/2" spindle is optional). The advantage of an interchangeable spindle is that you can use light-duty, small-bore cutters or heavy-duty, large-bore cutters on the same machine. For example, use a relatively inexpensive 1/2" bore cutter for a less demanding cut, say putting a 1/2" roundover on a tabletop edge (these cutters have smaller overall diameters, to allow shaping smaller-radius inside curves). Then, when you need to take a heavy cut, say to shape a large-profile raised panel, switch over to a 3/4" or 1" spindle that will handle larger-diameter cutters.

Interchangeable spindle machines also offer another bonus: Most such models accept collets that run regular router bits, so you can use your shaper as a super-beefy router table. This setup is best reserved for really big router bits, as most shapers aren't set up to run at a high enough rpm for small (1/2" diameter and smaller) bits.

Setting Up a Shaper

Because of the near infinite variety of shaper cutters (see sidebar, page 40), every time you set up a cut is going to be a little different. Some cutters are narrow, some wide; some are used individually, some are used in sets, with two or

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38 using a shaper