Black & Decker KW800 User's Guide download pdf (Page 17)

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Joint Fit Adjustment

R9PLUS BENCH OPERATION

CHAPTER 5

The Leigh eBush

Note: Normal tolerances with bits, guide bushings and router runout will generally produce poor fitting joints. Leigh

elliptical guide bushings (e7 and e10) solve this problem.

Patents for all Leigh elliptical guide bushings: U.S. 8,256,475 UK GB2443974

5-2

With the eBush turned to “10”

in the base the active

“diameter” is increased, allowing less side-to-side movement,

resulting in smaller sockets and larger pins. Turning the eBush to

“0”

allows more side-to-side router/bit movement and more

wood removal, producing larger sockets and smaller pins, and

thus a looser fit.

5-1 The Leigh eBush barrel is elliptical

, unlike plain

circular template guidebushes

. When rotated, the effective

diameter of the barrel changes, allowing fit adjustments as small

as .001"[0.025mm]. The e10 eBush is included with the R9

PLUS

5-4 All settings for the eBush will be aligned to the scratch or

ink marks on the router. The eBush will always be set on index

mark 5 as a starting point for dovetails and box joints.

5-3 Make a small scratch line or permanent ink mark on

the router baseplate

or guidebush adaptor at the 12 o’clock

position.

Joint Fit Adjustment

eBushes and Adaptors

eBush Adaptor Selection

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Black & Decker KW800 User's Guide Page 17