P18025: ZoomTots RIT
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Subsystem Build & Test

Table of Contents

Team Vision for Subsystem Level Build & Test Phase

During this phase of MSDII, our goal was to assemble and test the individual systems of the car including power steering, carseat mounting, child controls mounting, and controls connection. This phase resulted in a completed power steering system, a completed carseat mounting system, a partially completed child control mounting system, and software connections between "specific parts idk". The culmination of these individual successful build tasks will allow for a simplified integration phase coming up.

Manufacturing and Build Results

Power Steering

The power steering system initially required a slot to be manufactured. This slot was made using a found sheet of aluminum and manufactured using a mill.The progression of photos below show the slot being manufactured, attached to the gear, and meshed with the a shoulder bolt that will be used as the pin for power steering.
Dimensioned Slot Drawing

Dimensioned Slot Drawing

Initial Slot

Initial Slot

Final Slot Attached to Gear

Final Slot Attached to Gear

Final Slot Attached to Gear

Final Slot Attached to Gear

Final Slot Attached to Gear

Final Slot Attached to Gear

Initial Servo Test

The link to our initial servo test can be found here. It can be observed that depending on the direction of the joystick on the controller, the servo turns one way or another. The link to a video of this test is:https://youtu.be/QKh8bYBauds

Initial Power Steering Test

The link to our initial power steering test can be found here. This test is more complete than the last and shows the servo mounted onto the axle. This test is not complete as the servo is not fully attached to the axle. The link to a video of this test is: https://youtu.be/O070QgYs0MM

Final Power Steering Assembly

Carseat Support Structure

Carseat Support Structure

Carseat Support Structure

Carseat Support Structure

Mounted Power Steering Test

The link to our fully mounted power steering test video can be found here. This video shows the servo mounted to the car using a thick metal plate and screws. The link to a video of this test is:https://youtu.be/h3yzXAVoXuw

Carseat Mounting

Carseat Support Structure

Carseat Support Structure

Carseat Mount

Carseat Mount

Set up for testing 80/20 frame strength

Set up for testing 80/20 frame strength

Resulting broken corner bracket

Resulting broken corner bracket

Controls Mounting

Carseat Mount

Carseat Mount

Software/Controls

Test Results Summary

Remote Range Test

Remote Range Test

Remote Field Test

Remote Field Test

Torque Test

Torque Test

Frame Strength Test

Frame Strength Test

Link to test plan summaries can be found here.

Risk and Problem Tracking

Issue Tracker

Issue Tracker

Link to issue tracker can be found here

Link to risk assessment can be found here

Technical Paper Plan

As we move forward in our project, we have begun to think about how to present our project as a whole. An outline of our technical paper can be found here.
Tech Paper Plan

Tech Paper Plan

MSDII Gantt Chart

MSDII Gantt Chart

MSDII Gantt Chart

A link to a working version of our MSDII Gantt Chart can be found here.

Plans for next phase

For the integrated system build and test phase, the team will finish up the car by completing the tasks listed below.

Mechanical

Electrical

All


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