Popular Woodworking 2005-10 № 150, страница 28

Popular Woodworking 2005-10 № 150, страница 28

Tricks of the Trade

continued from page 24

Lathe Chuck Gauges Eliminate Guesswork

One of my great frustrations when I took up the wood lathe was turning the correct size spigot or recess on a workpiece to match the various jaws on my chucks. I have two chucks and several sets of jaws. I often installed the wrong jaws by mistake, or made the spigot or recess the wrong size. Plus, it was difficult to figure out which chuck and jaw combination was appropriate for gripping a square turning blank.

To eliminate this aggravation, I decided to make myself a "go/no-go" gauge for each set of jaws I own. Each gauge quickly shows the minimum and maximum spigot and recess diameters, as well as the range of square blanks the setup will accommodate. I cut the gauges from y8"-thick hardwood plywood, and used a fine-tip marker to note the measurements, color-coding the spigot-diameter measurements with a red marker and the recesses with blue. To prevent the ink from wicking into the wood, I first sanded and sealed the wood with shellac before top-coating it with wipe-on urethane.

I designed my gauges on a CAD program, printing them out full size, but you could easily lay them out to size using a ruler, compass and square. Obviously, designs can be made to suit any brand of chuck. I glued the patterns to the plywood, then cut them out with a scroll saw and smoothed the curves with a spindle sander. A small hanger hole allows me to chain my gauges together near my lathe.

Kenneth Glasscock

Conway, Arkansas

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