Adjustable wobble dado assembly for cutting grooves with greater

Details Adjustable wobble dado assembly for cutting grooves with greater Adjustable wobble dado assembly for cutting grooves with greater

1992-10-14

1993-08-24

Bray, W. Donald

Woodworking

Rotary cutter

Wobble saw

144218, 407 48, B23C 102, B27B 3300

Patent

active

052380378

ABSTRACT:
An adjustable wobble dado assembly has a planar circular blade with spaced peripheral cutting teeth. The cutting teeth have respective top cutting edges at their radially outer extremities which are located at progressively different radial distances from the axis of the blade so that, when the axis is tilted relative to the arbor for purposes of cutting a groove, those top cutting edges located at progressively greater radial distances from the axis cut portions of the groove located progressively further from the longitudinal center of the groove. The top cutting edges also have respective different top angles relative to the axis of the blade, those edges located at progressively greater radial distances from the axis having progressively greater top angles relative to the axis. An adjustable hub assembly includes a hub composed of an integral portion of the material of the blade having a thickness greater than that of the blade. The hub protrudes axially in opposite directions from the blade and terminates in parallel planar outer surfaces facing opposite to each other and inclined with respect to the axis of the blade.

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