Project Overview
This Manufacturing Project Involved Designing and Manufacturing a Custom Coffee Grinder,
which Focused on Creating a Manufacturable, Durable, and Functional Design through Injection Molding, CNC Machining, Manual Milling, and Manual Lathing.
The Highlight of the Coffee Grinder’s Design is the Injection-Molded
Adjustment Knob, which Allows Users to Fine-Tune their Coffee Grain Size.
Key Contributions & Responsibilities
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Designed the Coffee Grinder’s Internal Components,
Ensuring Proper Tolerances to fit the Clear PVC Tube for a Smooth Grinding Mechanism.
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Created a Custom Injection Mold for the Adjustment Knob, using
CNC-Milled Aluminum to Achieve Precise Dimensions.
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Selected Food Grade Fasteners and Materials for the Coffee Grinder to Allow for Coffee Beans.
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Used Manual Mill and Lathe to Achieve Tight Tolerances on the End Caps, Threaded Shaft and the Middle Piece Holding the Spring for the Adjustment Knob.
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Verified the Final Assembly’s Functionality through Tterative Testing
and End-User Feedback, Focusing on Consistent Grind Size and Ease of Use.
Skills & Technologies
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Injection Molding: Design of Mold Cavities, Gating Systems,
and Idealized Material Flow for Plastic Part Production.
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CNC Machining: Milled Aluminum Mold Insert to Precise
Tolerances, Ensuring the Final Injection-Molded Parts fit Correctly.
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Manual Machining: Used both the Manual Mill and Lathe to Achieve Tight Tolerances
for Aluminum Threaded Shaft, End Caps, and Middle Piece for Adjustment Knob Spring.
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Product Design: Developed Ergonomic Features and
Mechanical Assemblies that Withstand Repeated use in Coffee Grinding.
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Testing & Validation: Conducted Trials to Ensure
Consistent Grind Quality, Durable Components, and User-Friendly Operation.
Outcome
This Completed Coffee Grinder Featured a Robust, Injection-Molded Adjustment
Knob and Precision-Machined Components, which Resulted in a Reliable, User-Friendly
Product. Through Careful Material Selection, Mold Design, and Iterative Testing,
the Final Grinder Offered a Consistent Grind Quality while Showcasing Advanced
Manufacturing Techniques and Attention to Detail.
