P20414: Indoor Dry Toilet Base

Build & Test Prep

Table of Contents

Improvement Plan

Based on MSD I, the team member evaluated the team as a whole, and every member evaluated themselves. This evaluation was used to generate a plan on how to improve the team for a better outcome in MSD II. An improvement plan can be found below along with the original team self-critique for reference.

Improvement Plan.

Team's Self Critique.

Such plan would improve the team's function and prevent repeating old mistakes.

Team's Final Deliverables

The team's final deliverable would be a successfully completed mold. The mold will be consisted of two parts, inner mold and outer mold. The deliverable's main functions are to facilitate the manufacturing process and capture all the geometry needed to produce an aesthetically pleasing dry toilet. The team also hopes to complete another deliverable, which is resolving the male contact problem with the diverter.

Imagine RIT

The team should be ready to present the assembled mold and a life-sized prototype for the toilet. By then, the prototype would have been tested by human subjects to ensure that it fulfills all the ERs and CRs. The team will present design drawings, function decomposition and test results with the audience.

Team Vision for Build & Test Prep Phase

Summarize: Our team wanted to finish building the small toilet mold. We had finished the wood mold in the previous phase but that was all we had. For this phase we had planned to apply all the chemical parts and pour the concrete. This would allow us to check the feasibility of the concrete being pulled away from the mold.

Our team had fulfilled our plans of completing the small toilet mold. We had sanded the epoxy down for a smooth surface that the fiberglass would rest on. Then we had painted on the fiberglass resin and applied 2 layers of the fiberglass. After that we had poured the concrete. After 48 hours we pulled away the mold. This resulted in a success of our feasibility as there was no damage to the mold. This would allow us to move onto the life size scale toilet mold. This test also gave us insight on the concrete we had to use. We used Quickqrete concrete which was "chunky" and resulted in a rough surface. In the future we need to use smoother concrete with no rocks or particles.

Test Plan Summary

All the test plans are now populated with step by step instructions on how to perform the test. Anyone not affiliated with this project would be able to look at the plans and and perform them without knowing anything else. Shown below is an example of the steps to follow as well as a link to the actual test plans.

Test Plan Steps

Test Plan Steps

Test Plans.

Risk and Problem Tracking

During this phase, the team had the opportunity to close many of the risks that were still open from the last phase. After the small-scale toilet was created and the team figured out feasible molding techniques, many of the technical risks that were open, such as the concrete sticking to the fiber glass, had been realized. The team learned that action towards the project deliverables will lower the risk levels so it is important to stay on the project objective to ensure that the objectives are being fulfilled.

MSD Risk Management Updated.

There were some problems that were identified during this phase that were not apparent until the small-scale model was molded. From this exercise of problem tracking, the team learned how problems should best be monitors and strategies on how to attend to them were brainstormed as well as utilized.

Problem Tracker.

Design Review Materials

A budget tracker was also created to help visualize where the team's budget was going to. The team is currently on track and plans to spend a third of its budget but have all the materials for the full size mold. This will leave over a thousand dollars in the budget to focus on the diverter and anything that the team might miss.
Budget Tracker

Budget Tracker

Plans for next phase

Team's plan for next phase is to ensure that all the 3D drawings and Toilet dimensions are fixed. Confirm with guide and SOIL that the design is acceptable and applicable. Purchase LDF boards and start the cutting process according to the drawings. Begin sanding, applying fiberglass and assembling the mold to create the first life-sized prototype.

Colin Three Week Plan.

Patrick Three Week Plan.

Zyad Three Week Plan.

Jakob Three Week Plan.

Gantt Chart Example

Gantt Chart Example

Full Schedule below:

Full Schedule.

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