P18229: Robotic Otter
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Subsystem Build & Test

Table of Contents

Team Vision for Subsystem Level Build & Test Phase

During this phase, we were able to get the spine moving left and right. Also, we were able to see what changes needs to be made to better accommodate the motors, flex sensors, and other critical parts.

Test Results Summary

Test Plans

Our active test plans progress can be found here.

Inputs & Source

Subsystem Fabrication
Vertebrae Spacers:
Silicone Curing in Vacuum Chamber - click on the above image to view the test in action

Silicone Curing in Vacuum Chamber - click on the above image to view the test in action

Vertebrae Spacers

Vertebrae Spacers



Spine Fabrication
So far the spine fabrication consists of 3D printed small vertebrae, 3D printed large vertebrae, dragon skin spacers, .25" plywood ribs, fishing line, and micro gear motors that have a gear ratio of 298:1 and have a stall torque of 70 oz-in. Please see below for the assembly thus far.

Robotter Spine Build

Robotter Spine Build


Outputs & Destination

At this time, our differential gear had not arrived, therefore we tested directly from the motors so we can move forward with other testing and design. Although we were able to get the spine and tail to move left and right, we still have work to do to optimize the mechanics of the spine. Please see below for videos of the spine turning left and turning right.
Spine Turning Left - click on the above image to view the test in action

Spine Turning Left - click on the above image to view the test in action


Spine Turning Right - click on the above image to view the test in action

Spine Turning Right - click on the above image to view the test in action

Bill of Materials

Current Bill of Materials
Bill of Materials

Bill of Materials

Risk and Problem Tracking

Risk Assessment

Top 20 Risks

Top 20 Risks

A full list of our working risk assessment can be seen here: Risk Assessment

Parameters to calculate importance

Parameters to calculate importance

Problem Tracking

Problem Tracking

Problem Tracking


The Problem Tracking document can be seen here: Problem Tracking

Plans for next phase

MSD II Goals:

MSD II Goals

MSD II Goals


Individual Goals

Team Member
Amanda
Corry
Curt
Ethan
Tiffany
Vaughn



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