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Generate Product Concepts

Table of Contents 1 Step 1. Clarify The Problem 2 Step 2. Possible Methods of Operation 3 Step 3. Early Concept Sketches 4 Step 4. Explore Systematically 5 Step 5. Reflect on the Results and the Process

Step 1. Clarify The Problem

Intuitive Function Tree.jpg

Step 2. Possible Methods of Operation

Cutting Methods

1. Vertical rotary drum with single blade

2. Guillotine type tray device (Horizontal Chopping)

3. Pencil lead type cutting device

4. Heated wire cutter

5. Laser/Electron Beam

6. Band Saw

7. Deli slicer blade

Material Feeding

1. Hoppers-Ordered hopper, not random

2. By hand

3. Cartridges

Material Removal / Separation

1. Vacuum for scrap and straws

2. Trap door system

3. Separation Chutes

4. Lifter table to clean of scrap and separate straws

5. Blade with holes at end

6. Vacuum to suck up scrap and blower to blow off cut straws

Step 3. Early Concept Sketches

Sliding Cutter and Chopping Cutter.pdf

Heated Wire, Band Saw, Deli Slicer.pdf

Pencil Lead Cutter.pdf

Stacking Chopper.pdf

Modified Original Holder.jpg

Rotary Drum.jpg

Linear Feed Circ Saw.jpg

Vertical Straw Loaders

-Hand held and shoot loader: Vertical Straw Loaders.pdf

Step 4. Explore Systematically

Morph Chart Description of Concepts and Pugh Chart.xls

Step 5. Reflect on the Results and the Process

Based on the earlier concept generation steps a very basic block diagram has been constructed to show the system interactions for this device.

Block Diagram.pdf

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