P18229: Robotic Otter

Customer Handoff & Final Project Documentation

Table of Contents

1 Team Vision for Final Demo and Handoff
2 Drawings
- 2.1 3D Models - Full Assembly
3 Build
4 Test Results Summary
- 4.1 Test Plans
5 Risk and Problem Tracking
- 5.1 Risk Assessment
- 5.2 Problem Tracking
6 Bill of Materials
7 Final Project Documentation
8 Plans for Wrap-up
- 8.1 MSD II Goals:
- 8.2 Individual Goals

Team Vision for Final Demo and Handoff

During this phase our team further developed the mechanical design to improve on weak parts of the build. In addition, we made progress on the skin of the robot and waterproofing the electrical box.

Our plan for this phase to ensure that we put in maximum effort to try to meet as many of the customer requirements that we possibly can. Also, it is important that we document our project in our technical report and make our user's manual with as many details as possible for our customer's use and if a future senior design team were to pick up the project from where we left off.

Drawings

3D Models - Full Assembly

Final Full Assembly

Final Full Assembly Side View

Final Full Assembly from Below

Build

Full Assembly and Parts

Final Assembly without the Electrical Box and the Skin

Final Assembly without the Skin

Differentials for Spine and Tail

Flex Sensor Vertebrae

Skin and Waterproofing

Final Skin with the Seam Sealer Glue Used on Most Seams

Waterproof Zipper with Seam Sealer Tape

Results: The material itself proved to be waterproof, however, there was difficulty waterproofing two parts of the final skin: the seams and the holes that are between the end of the zipper and the fabric.
Seam Sealer Tape: The iron-on seam sealer tape worked well during the prototype testing, however, after over an hour of sitting in water, the tape started to become un-attach from the material. Therefore, this method of seam sealing was not sufficient.
Seam Sealer Glue: The seam sealer glue worked well on single seams that laid flat. However, the glue did not work on spots where multiple seams met in one spot or in areas where the seams did not lay flat. We did not have enough time to reapply more seam sealer glue to those areas to see if a second coat would work. Therefore, we concluded that this method should be further tested.
End of Zipper: It was attempted to solve this problem by using the seam sealer tape over the end of the zipper, the hole, and the fabric near the end of the hole to create a waterproof "sticker" over the whole area, however, the seam sealer tape started to lift, which allowed water to come through from in between the end of the zipper and the start of the fabric.