Tapering Jig Incremental Angle Adjustment
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Solution Overview
Problem
Existing woodworking accessories for adjusting cutting angles are cumbersome and limited in precision, often leading to errors when making precise angled cuts, especially when calculations like 'rise and run' measurements are involved, as they lack incremental adjustments and gauges for such measurements.
Innovation Solution
A tapering jig with pivotally connected top and bottom plates, featuring incremental adjustment gauges and dials that allow for precise angle settings in 0.125° increments, including 'rise and run' measurements, enabling accurate cutting angle adjustments without the need for complex calculations or drawings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple moving parts are used in woodworking accessories to enable angle adjustment, then adaptability for different cutting angles is improved, but device complexity increases making the accessory cumbersome to use
Solution Approach 1:
The accessory is divided into separate functional components: a guide rail component, a workpiece support component, and an adjustable angle component. This segmentation allows each part to have a specific function while maintaining overall simplicity, resolving the contradiction by enabling adaptability through modular design rather than complex integrated moving parts.
2Ease of operation
If angle adjustment increments are set at 0.25° in existing accessories, then ease of operation is improved, but manufacturing precision is insufficient for applications requiring smaller incremental adjustments
Solution Approach 1:
The angle adjustment mechanism is designed to be dynamically adjustable, allowing the user to select between different increment sizes (e.g., 0.25° or smaller increments) based on the specific woodworking task. This dynamic adjustability resolves the contradiction by enabling both ease of operation for general use and high manufacturing precision when required, rather than being fixed at a single increment level.
3Measurement precision
If woodworking accessories rely on drawings or plans with specific angles, then measurement precision is maintained, but ease of operation decreases when working without such references
Solution Approach 1:
The accessory incorporates built-in angle measurement and indication features that allow the user to directly read and set cutting angles without requiring external drawings or plans. The system serves itself by providing all necessary measurement and adjustment capabilities integrated into the accessory, resolving the contradiction by maintaining measurement precision while enabling independent operation without reference materials.
Data Source
AI summary
A tapering jig for a woodworking apparatus that includes a top and bottom plate that pivot relative to one another to set a cutting angle of a work piece. The jig further includes at least one scale of one or more markings that represent a cutting angle and/or a “rise and run” measurement. In addition, a dial is positioned relative to the at least one scale to identify and set the cutting angle and/or “rise/run” measurement. The dial includes a plurality of pointers and a plurality of pins and each pin is associated with a respective pointer. Consecutive pins are offset incrementally from the respective pointers so that each pointer can be inserted in the same recess adjacent to the scale to incrementally adjust the cut angle and/or “rise/run” measurement.