Adjustable Miter Gauge Fence Alignment for Precise Saw Cuts
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Solution Overview
Problem
Miter gauge assemblies face challenges in accurately guiding stock movement along a work table, particularly in adjusting the orientation and position of the fence relative to the blade and work surface, leading to inaccuracies in cutting precision.
Innovation Solution
The miter gauge assembly includes a base assembly with a fence plate and brackets that allow for adjustable orientation and position adjustments relative to both axes, using deformable members and collars to fit various channel widths, and a locating pin system for precise calibration of the scale.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the fence is fixed to the miter gauge base, then the structure is simple, but the fence position and orientation cannot be adjusted relative to the blade and work surface
Solution Approach 1:
The patent applies dynamics by making the fence plate movable relative to the base through brackets that can slide along slots. This allows the fence to be adjusted to different positions and orientations while maintaining a relatively simple overall structure. The movable connection enables adaptation to different cutting requirements without requiring complete redesign of the mounting mechanism.
Solution Approach 2:
The fence mounting system is segmented into separate components: the base, the fence plate, and intermediate brackets. This segmentation allows independent adjustment of each component, enabling precise positioning of the fence relative to the blade and work surface while keeping the individual components simple in design.
2Measurement precision
If standard slots are used for mounting the fence, then the manufacturing is simple, but the fence cannot be precisely positioned and squared to the blade
Solution Approach 1:
The patent introduces intermediate brackets as mediators between the standard slots and the fence plate. These brackets provide reference surfaces and adjustment mechanisms that enable precise positioning and squaring of the fence to the blade and work surface, while still utilizing simple standard slot geometry for mounting.
Solution Approach 2:
The brackets are pre-configured with slots and reference surfaces that establish precise geometric relationships before the fence is mounted. This preliminary preparation of alignment references simplifies the subsequent positioning process and ensures accurate fence alignment without requiring complex manufacturing procedures.
3Adaptability or versatility
If the fence position is fixed, then the device is simple to operate, but the fence cannot be repositioned to accommodate different work piece sizes and cutting operations
Solution Approach 1:
The fence plate is designed to be movable relative to the base through sliding brackets, allowing users to easily reposition the fence for different work piece sizes and cutting operations. The dynamic connection maintains operational simplicity while providing the necessary adaptability through straightforward adjustment movements.
Data Source
AI summary
A miter gauge for guiding a work piece over a work surface of a work platform in relation to a saw blade. A fence plate is connected to a base assembly and is movable relative to a base of the base assembly to adjust the position of the fence plate relative to the base. Brackets connecting the fence plate to the base are each movable relative to the base to adjust the orientation of the fence plate relative to a first axis perpendicular to the blade in order to square the fence engaging face to the blade. The fence plate is movable relative to the two brackets to adjust the orientation of the fence plate relative to a second axis perpendicular to the work surface in order to square the fence engaging face to the work surface.