P20414: Indoor Dry Toilet Base

Subsystem Build & Test

Table of Contents

Team Vision for Subsystem Level Build & Test Phase

Our team plan for this phase was to ensure that all the 3D drawings and Toilet dimensions are fixed. We also wanted to purchase LDF boards and start the cutting process according to the drawings.

During this phase our team accomplished the design situation. All the 3D drawings and dimensions are fixed and they are ready to be looked over a final time before starting the cutting process. Most of the materials were also purchased and are ready to be used in the life sized toilet mold.

Test Results Summary

The team conducted a test on the prototype mold to ensure its capability and to confidently start scaling the mold up for the life-sized toilet. The following report captures the testing process and results in details.

Test Results Summary

Risk and Problem Tracking

Our Risk Management file was updated. The new risks now populated have to do with getting the full sized mold built since that is our next step. We also have more risks that deal with the diverter and problems that may arise.

Risk Management Updated

Problem Tracker Updated

The problem tracker was updated to include more potential solutions to some of the problems that continued to affect the team from the last phase. Many of the problems had also been resolved, since the team ultimately decided to purchase the LDF from Lowes because the other vendor was no longer being responsive. This problem tracker has been helpful to the team throughout this phase and it has taught us that some of the problems need to be addressed daily while others can be checked by a weekly basis.

Functional Demo Materials

Inner Mold

Inner Mold

Inner Mold-This piece will be split up into 5 different sections one we begin cutting with the CNC router. The router also has 3D cutting capabilities meaning we can add curved depth cuts into each 3/4" layer making it easier to sand. We have als had talks about making certain parts of this hallow to reduce weight for shipping to Haiti.
Outer Mold

Outer Mold

Outer Mold- Updated from the last design, this piece now has extended out edges to make the layers easier to line upp when gluing. The 3D cutting feature will especially help us with this section since it would have been hard to sand the inside edge of the part. The window will be added this week using the ratchet strap technique we previously discussed.
Assembled Mold

Assembled Mold

Assembled Mold- As seen in the picture, there is not much clearance between the inner and outer mold. As of now, the gap is .5" uniformly between the inner and outer mold. This is to also compensate for the thickness of 3 layers of fiberglass and epoxy.


Inner Mold with diverter and Bucket- This picture shows the inner mold shelled out with the diverter and bucket placed inside. The bucket has significant clearance from the outside edges meaning employees should be able to remove the bucket with ease. The diverter is a great fit and leaves a bit of a height gap between the back edge and the bucket rim.

Plans for next phase

Patrick 3 Week Plan

Colin 3 Week Plan

Zyad 3 Week Plan

Jakob 3 Week Plan

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