Router Adapter for Wide Recesses via Right-Angle Grinder
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Solution Overview
Problem
Conventional woodworking routers are limited by narrow cutting diameter range and fixed motor integration, restricting their ability to cut wide grooves or recesses, and lack versatility in attachment to right-angle grinders.
Innovation Solution
A router adapter housing with a truncated pyramid design, featuring a threaded central aperture for an adjustment nut and arbor, allowing attachment to a standard right-angle grinder, with adjustable cutting depth and replaceable blades, and a safety handle for enhanced user protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If a conventional router with integral motor is used, then the motor is built-in and compact, but the cutting width is restricted to narrow range
Solution Approach 1:
The router is divided into separate components: the motor (right-angle grinder) and the router body (adapter housing), allowing independent optimization of each part. The adapter housing can be attached to different grinders and configured for various cutting widths without redesigning the motor integration.
Solution Approach 2:
The adapter housing with threaded central aperture and arbor system can accommodate different blade diameters and cutting configurations, making it a universal solution for various cutting width requirements when attached to standard right-angle grinders.
2Adaptability or versatility
If a plunge type router is used, then cutting depth adjustment is available, but the range of cutting diameters is narrow
Solution Approach 1:
The arbor assembly with adjustment nut allows dynamic adjustment of blade protrusion and cutting depth during operation. The threaded coupling mechanism enables easy modification of cutting parameters without fixed constraints.
3Adaptability or versatility
If an adapter for right-angle grinder is used, then versatility is improved, but device complexity increases
Solution Approach 1:
The adapter housing merges the functions of the grinder attachment, blade holder, and depth adjustment mechanism into a single integrated structure, reducing the number of separate components needed while maintaining versatility.
Solution Approach 2:
The threaded central aperture acts as an intermediary mechanism between the grinder's threaded shaft and the arbor assembly, providing a standardized interface that simplifies the overall attachment structure.
4Length of moving object
If conventional router design is used, then manufacturing is standardized, but cutting width cannot exceed three times typical router capacity
Solution Approach 1:
The truncated pyramid housing design utilizes three-dimensional spatial optimization, allowing the blade assembly to extend beyond conventional router limits while maintaining manufacturability through standard machining processes for the adapter components.
Data Source
AI summary
A router apparatus for cutting grooves in surfaces at a range of depths includes a housing having a central threaded aperture, a set of saw blades with a diameter less than the aperture. In addition, the apparatus includes at least one handle attached to a side of the housing, an adjustment bushing configured for operational engagement with the central threaded aperture, wherein turning the bushing adjusts the cutting depth of the set of saw blades, and a female coupling opposite the set of cutting blades wherein the female threads are operationally engageable with the male threads of a common right-angle grinder.