Ski boot walking attachment redesign
From DDL Wiki
Contents |
Extended Summary
Market Research
Survey
Existing Solutions
Products
Hacks
Initial Concepts
Introduction
Track
Spring-Damper
Hinged Boot
Comparison with Existing Solutions
Pugh Chart - Initial
| Description | WalkEZ | Slider | Spring-Damper | Boot Hinge | |
|---|---|---|---|---|---|
| Sketch |  | | |
| |
| Criterion | Weighting | Reference | Concept 1 | Concept 2 | Concept 3 |
| Physically minimal | 2 | 0 | - | 0 | + |
| Durable | 1 | 0 | - | - | - |
| Easy to Use | 1 | 0 | 0 | 0 | - |
| Improves step | 3 | 0 | ++ | ++ | + |
| Universal | 2 | 0 | + | 0 | -- |
| Inexpensive | 1 | 0 | -- | - | -- |
| + | 0 | 8 | 6 | 5 | |
| 0 | 9 | 1 | 5 | 0 | |
| - | 0 | 5 | 2 | 8 | |
| Totals | 0 | 3 | 4 | -3 | |
Selected Concept
Desired Traits
Theoretical Equivalence
Physical Form
Comparison
Pugh Chart - Final
| Description | WalkEZ | Unbuckling | Unbuckling & WalkEZ | Track-Spring-Damper Device | |
|---|---|---|---|---|---|
| Sketch | | | |
| |
| Criterion | Weighting | Reference | Alt. Solution | Alt. Solution | Final Concept |
| Physically minimal | 2 | 0 | ++ | 0 | - |
| Durable | 1 | 0 | 0 | 0 | - |
| Easy to Use | 1 | 0 | - | - | 0 |
| Improves step | 3 | 0 | - | - | +++ |
| Universal | 2 | 0 | - | - | + |
| Inexpensive | 1 | 0 | ++ | 0 | -- |
| + | 0 | 6 | 0 | 11 | |
| 0 | 9 | 1 | 4 | 1 | |
| - | 0 | 6 | 6 | 5 | |
| Totals | 0 | 0 | -6 | 6 | |
