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Skreppa - The Modular Shoe Detailed Design

Skreppa - The Modular Shoe Detailed Design. By Nick Amato, Mickey Evans, Haley Gallagher, Lydia Yeckley. Greetings. MSD Guide - Jerry Adamski. Customer - VP Engineers for Sustainable World - Bri Goold. Project Team - Skreppa (Modular Shoe). Industrial Designers - Noah Flynn & Chris Flemming.

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Skreppa - The Modular Shoe Detailed Design

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  1. Skreppa - The Modular Shoe Detailed Design By Nick Amato, Mickey Evans, Haley Gallagher, Lydia Yeckley

  2. Greetings MSD Guide - Jerry Adamski Customer - VP Engineers for Sustainable World - Bri Goold Project Team - Skreppa (Modular Shoe) Industrial Designers - Noah Flynn & Chris Flemming

  3. Agenda • Purpose Statement • Project Objective & Mission • Phase Gate Reviews • Current Phase Plans • Scope Changes • Similar vs Dissimilar Materials of each Shoe • Shoe Last • Prototyping • Finalizing Test Plans • Life Cycle Assessment Comparison • MSD II Plan • Feedback & Comments

  4. Purpose Statement 20 Billion Pairs of Shoes Made per year • Fast-changing fashion industry • 79% of shoes are thrown in landfills • Americans toss 300 million pairs of shoes per year • Components aren’t recycled - various components

  5. Project Objective & Mission Skreppa is... • Reinventing how people use shoes • Using ethically sourced materials • Enabling wearers to swap components with ease

  6. Phase Gate Reviews

  7. Detailed Design Plan Project Steps • Finalize mechanism design • Decisions regarding scope • 3D printing shoe last - cutting template • Project plan for next semester • Bill of Materials Update with Purchases • Finalized test plans • Identify obstacles for MSD II Detailed Detailed Design (11/9 - 12/3) • Mid-phase progress report • Complete design output • All design documentation • Complete & up-to-date on EDGE • MSD II plan • (first draft, but with project-specific detail) • Engineering Requirements (complete) • Risk assessment, mitigation plans & triggers • Test plan (complete, addresses all requirements, equipment & procedures defined, traceable to requirements) • Ready to order long lead-time parts and implement the design

  8. Scope Change From • 2 upper types, 3 cupsole types, working mechanism To • Hiking & Flat - upper & cupsole with working mechanism Why? • Additional complexity with bending requirements • Different techniques used for different shoes

  9. Similar & Dissimilar Material Report

  10. Shoe Last • 3D Printed via the Construct @ RIT • Cost approximately $6.60 to print • Premade shoe lasts were $70 or more from an online retailer. • Used to: • Generate upper template • Gain perspective on sizing • Visualize mechanism • Sized to a Women’s 8.5

  11. Mechanism Prototype- Slide Mechanism Slide mechanism on calculator cover served as inspiration for our joining mechanism First pass 3D print of slide mechanism

  12. Finalized Test Plans Comfort Scale Engineering Requirement → Test Plan • Comfort for Customer → Comfort Scale (See Image on Right) • Outsole Cure Time → Based on average time taken taken to fabricate • Changeover Time → Integrated into comfort scale (+100 Tests) • Topsole Fabrication Time → Based on average time taken to fabricate • Durability → Based on testing of 50 users • Toe Bending Give Test → Simple Scale Testing Required • Waterproofing - Submersion Testing

  13. Lifecycle Shoe Comparison • Materials have most impact on CO2 footprint • Skreppa values based on construction with non ideal materials

  14. Bill of Materials Update with Purchases Total Purchased $82.40 External items addressed $77 of material identified (Quick TAT) Mostly internal build items remain

  15. Project Plan for MSD II • Build & Test Prep • Subsystem Build & Test • Integrated System Build & Test • Customer Handoff & Final Project Documentation

  16. ESW Winter Presentation

  17. Next Gate Objectives Project Steps • Receive Ordered Items • Upper cutting • Fabricate female track • Fabricate male track • Construct prototype • Generate physical proof of concepts • Concept Refinement • Risk & Problem Tracking • Pattern/template drawn up for topsole Build & Test Prep (1/15 - ~2/12) • MSD I post-mortem • MSD II project plan (rev 2) • Status long-lead time purchases • Test plan (rev 2) • Test bench setup • Problem tracking in place

  18. Feedback & Comments

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