Popular Woodworking 2005-10 № 150, страница 32

Popular Woodworking 2005-10 № 150, страница 32

Tricks of the Trade

continued from page 28

Drill Spheres Easily

I recently installed a bench vise, but was disappointed by the skimpy plastic caps on the ends of the wooden dowel handle. I decided to upgrade them using a couple 2"-diameter wooden balls that I bought. Fitting the balls onto the dowels proved surprisingly simple with the aid of a setup that is so simple it hardly deserves to be called a jig.

First, I outfitted my drill press with a Forstner bit of the same diameter as the dowel, then drilled a hole through two short lengths of scrap, offsetting the holes toward one end. I then trapped the ball between the two holes, shimming between the non-drilled ends of the scrap to orient the two pieces roughly parallel to each other while clamped to my benchtop. Now I was able to bore a hole in each ball using the same Forstner bit in a hand-held drill, guided by the holes in the scrap.

The beauty of this setup is that the scrap guide pieces really don't need to be clamped parallel to each other or square to the benchtop, as the exaggerated angles in the drawing show. As long as the ball is seated firmly between the guide holes, the drill will travel through the ball's axis. For best long-grain glue strength, I made sure to bore the hole in the direction of the ball's grain. PW

Philip Roe Ann Arbor, Michigan

Forstner bit

Clamp assembly to bench top

Guide board

Guide board

Benchtop

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Use pieces of scrap to balance out diameter of sphere

Unlimited Material Thickness

Quickly switch Drill Guide Block between Portable and Benchtop Oases!

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DESIGN

Material Support Stan

Dust Collection

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K3 Master System

• (V Interchangeable OT Guide

• Benchtop Base

• Portable Base

- Dust Collection Shroud

• lateral Support Stop

• Premium Face Clamp ■ £TrllBit

• 6'and 3'-#2 Driver Bits US MSBP: SM995

K3 Standard Pack

• interchangeable Drill Cutis

• Portable Base

' Premium Face Clamp •DrtSBtt

• 6'- #2 Driver Bit

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front Side Clamping

US MSRP: $79

Upgrade the Standard Pack later,.

Convert vourKl Stanford Pack to a '■'i '.'v System with our n Upgrade Kit

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