Wood Magazine 171 by Bill Krier

Author:Bill Krier
Language: eng
Format: epub
Tags: Wood, Home and hobby woodworker
Publisher: Meredith Corporation
Published: 2006-03-25T05:00:00+00:00

Shoulders

Although similar In structure, these cuts differ due to their placement within a board. Rabbets form an L-shaped recess along an edge or end. Dadoes have two shoulders and run across the grain. Grooves also have two shoulders, but run with the grain.

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Tablesaw delivers quick, accurate channels

In the WOOD* magazine shop we turn first to the tablesaw for culling dadoes, grooves, and rabbet*, 'typically, it takes less time lo install and adjust a dado set than it docs id prep j router. And, we prefer the tablesaw "9 ability to quickly cut channels and handle most sizes of boards or panels.

You have two options in dado sets: stacked or adjustable. The stacked sets—which we prefer—reliably deliver a square, clean cut. Of course, higher-priced sets typically produce the cleanest cats with llai bottoms and square, no-tear-nut shoulders. Most slacked dado sets, however, leave tiny, triangular "ear marks" in the bottom comers caused by the beveled teelh of the outer blades.

Adjust able dado blades (sometimes called "wobble" blades) tempt you with low prices and quick seiup. Bui these sets come with serious drawbacks: They create concave or ridged bottoms and unsquare corners that need considerable cleanup.

You also can make all three cuts with a good quality 40- or 50-tooth, combination blade. For dadoes and grooves, cut both shoulders firsi. and ihen nibble away the remaining waste. Clean up the rough bottom with a sharp chisel or router dcanoui bit.

You can cut rabbets the same way. hut we prefer the following two-cut method. First, make the shoulder cut; then, using a tall auxiliary fence (5-8", depending on vvorkpiece height), adjust the blade height and cut tlie botiom perpendicular to the shoulder. To avoid kickback, be certain the waste side is not trapped between the fence and the blade.

Tips for top-notch tablesaw results

■ Tip 1: Adjust your saw for clean, accurate cuts.

To ensure aceurac> and squareness before Id to the blade, and the miter gauge must be making any cuts, first make sure you have set perpendicular to the blade. Even the your tablesaw set up correctly, The miter slightest deviation will affect ihe fit and

slots and rip fence must be perfectly para!- finish of the joint.

Outside blade

■ Tip 2 : Choose a good dado set fox best results. Stacked dado sets contain iwo outside blades., several chippyrs. and melal or plastic shims. (If your set does not include shims, make your own from thin paper or card slock.) Determine the width of your channel; tlten add the requisite number of chip-purs between the outer blades isee illustration, righr) on the arbor and tighten, Don'i worry if ihe arbor washer won'l fit—leave it off. It's more important to get the arbor nut tightened to full threads.

Oulslcte blade

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