P19037: Skreppa Modular Shoe
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Integrated System Build & Test

Table of Contents

Team Vision for Integrated System Build & Test Phase

What did your team plan to do during this phase?

Our team planned to continue on the construction of the upper portion of the shoe with the materials we have identified as the best, most sustainable for our shoe. Our team also planned to implement the mechanism to the bottom mold to establish a working prototype. From there we planned to continue to test our subsystems.

What did your team actually accomplish during this phase?

Bill of Materials & Current Budget

The live spreadsheet, that will be updated throughout MSD II, can be found here.

BOM & Budget

BOM & Budget

BOM & Budget

BOM & Budget

Risk and Problem Tracking

Risk Tracking

The live spreadsheet, that will be updated throughout MSD II, can be found here.

Risk Matrix

Risk Matrix

Risk Matrix

Risk Matrix

Risk Matrix

Risk Matrix

Problem Tracking

The live spreadsheet, that will be updated throughout MSD II, can be found here.

Problem Tracking Update As Of 26 March 2019

Problem Tracking Update As Of 26 March 2019

Photos of Work Completed

Upper Revision

During this phase, the Skreppa team worked diligently on the first thing people notice about shoes - the upper. Since the team is making 2 versions of an upper - a hiking boot and a low cut shoe - double the work had to be done to make sure that it is both aesthetically pleasing and functional. Below, you will find a photo gallery of the progress between the different versions of each type of upper. As of Gate 7 - we are completing the fourth version of the hiking upper & second version of the low cut shoe.

Hiking Boot

Version 1 - Lumpy The first version of the hiking boot was a quick throw together of what the team expected of a hiking boot. This version was hashed together as both a sewing challenge & rush to finish. Additionally, some unique aspects of the version included recycled pillow stuffing in the toe and a stitched delta in the tongue.

Version 1 of Hiking Boot Upper

Version 1 of Hiking Boot Upper

Pros

Cons

Version 2 - Aardvark

For the second iteration of the shoe, we had found a recycled mesh material that could potentially build up the strength of the walls of the shoe. Additionally, we experimented with sizes - since the tolerance we had given ourselves for sewing were too small. Unfortunately, this yielded in a shoe with very large proportions - specifically a large tongue. We also experimented with stitching patterns to better separate the parts of the shoe. The version below was also the first time we had experimented with stitching a majority of the shoe, and then flipping it inside out to finish the stitching.

Version 2 of Hiking Boot Upper

Version 2 of Hiking Boot Upper

Pros

Cons

Version 3 - Frank

The third iteration of the shoe, lovingly named "Frank" after everyone's favorite monster, is the most complete dry-run template that we completed. After consulting with our various Industrial Designers, we noticed that we should include a third piece on the heel to add more structure. Additionally, we noticed that a low cut shoe featured a strip of fabric on the back of the heel that merged the two side panels together - and decidedly added it to our hiking boot. This also created a tab to help the user put the shoe on. The most noticeable aspect of this shoe is the fact that it is the first iteration to be fully enclosed. This involved a quick hand-sewing to show proof of concept. We learned that enclosing the shoe would be too difficult without a complete set up like the big manufacturers have - which is why we resulted to needle, thread, and hands. Ultimately, this third iteration was greenlit by Lydia & Haley to begin working on the fourth iteration with the Sunbrella Fabric and high quality thread.

Version 3 of Hiking Boot Upper

Version 3 of Hiking Boot Upper

Pros

Cons

Low Cut Shoe

Version 1 - Oh Honey No

The first version of our low cut shoe came from the realization that we had not focused at all on its construction. This caused one poor donated shoe to be ripped apart to create a very rough template. The goal for this iteration was to show proof of concept - NOT a final look in the slightest. A second iteration was immediately made to correct our wrongdoings. However, we learned a lot from this first iteration to not only use in future versions of the low cut but the hiking boot as well

Version 1 of Low Cut Upper

Version 1 of Low Cut Upper

Pros

Cons

Version 2 - TBA

Outsole Work

Mechanism Revision

During this phase, we had worked on versions four through six of the sliding mechanism. Below you will find the iterations and different aspects of each version.

Version 4

This iteration included a dovetail design that sought to potentially help out the mechanism to not flex out during usage. This mechanism failed very quickly and caused us to look into a different design.

Version 4 Mechanism

Version 4 Mechanism

Pros

Cons

Version 5

This iteration was openly discussed during the last gate review - but did not exist yet. We looked back to version 3, and decided that geometrically, that sliding worked the best. We mirrored the surfaces so that we have one overall mechanism with two pieces - instead of four. This solidified our overall profile for the mechanism.

Version 5 of Mechanism

Version 5 of Mechanism

Pros

Cons

Version 6

The sixth iteration of the mechanism has been the most successful so far. This one is what we are working on moving forward with in future iterations.

Version 6 of Mechanism

Version 6 of Mechanism

Pros

Cons

Functional Demo Materials

Plans for next phase

Team Plans

The Skreppa team will be working towards making a functional prototype of both pairs of shoes (Hiking boot, Flat) and begin the final testing for the overall shoe unit as a whole. We, as a team, want to have a working prototype because everything is coming together with each gate review and the final review is coming up.

Individual Plans


Home | Planning & Execution | Imagine RIT

Problem Definition | Systems Design | Preliminary Detailed Design | Detailed Design

Build & Test Prep | Subsystem Build & Test | Integrated System Build & Test | Customer Handoff & Final Project Documentation