P17044: Human Tremor Mitigation
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Subsystem Build & Test

Table of Contents

Team Vision for Subsystem Level Build & Test Phase

Action Items From Previous Phase

Project Plan Update

Link to Document here

As stated above, by the end of MSD II we will have a rugged prototype that can be used as a robust test plat form. This prototype will be a semi-active glove that mitigates tremors.

Goals for Week 5

Finalize Alpha Prototype (in progress)

  1. Attach additional Brake Assembly to to bottom of Arm. (completed)
  2. Fully Attach stretch sensors. (not-completed)
  3. Develop Basic Reaction Code. (completed)
  4. Include Battery. (completed)

Have a completed design of our system (in progress)

  1. Purchase-able objects approved in week 2-3. (completed)
  2. Mechanical designs complete by week 5. (in progress)
  3. Raw resources and purchasable items in BOM ready to order. (completed)

Submit IRB Submission (completed)

Build And Test

Housing For Electrical Components

Arduino Case Model Exploded

Arduino Case Model Exploded

Arduino Case Model

Arduino Case Model

Arduino Case 3D Printed Parts

Arduino Case 3D Printed Parts

Arduino Case 3D Printed

Arduino Case 3D Printed

Electrical System for Alpha

Current Layout of Alpha

Current Layout of Alpha

The changes and progress for this phase are simplified as follows. More complete descriptions of events can be found in the file here.

The preliminary code to test the systems response with the 9DOF is provided here.

  1. Old MOSFET replaced with new MOSFET board
  2. New MOSFET verified and installed on Alpha
  3. Second magnet installed on second rail
  4. Screw terminals added to Alpha
  5. Trouble shooting problem with second MOSFET
  6. Code to verify operation of magnet actuators
  7. Wiring and electronics on alpha organized and cleaned up
  8. Baseline code for magnet control based on 9DOF
Alpha Circuit Diagram

Alpha Circuit Diagram

Brake System

Mark II

Brake MarkII Test

Brake MarkII Test

Brake MarkII Spring System

Brake MarkII Spring System

Link to Test Results here

The good:

Needed improvement:

Mark III

Brake Mark III Model

Brake Mark III Model

Brake Mark III Model Exploded

Brake Mark III Model Exploded

The changes:
Brake Mark III 3D Printed Parts

Brake Mark III 3D Printed Parts

Brake Mark III 3D Printed

Brake Mark III 3D Printed

Improved Plate Design

Link to Document Improved Force Distribution systems here (PF Spoilers)

Improved Design of Bottom Plate - CAD Model

Improved Design of Bottom Plate - CAD Model

Improved Design of Top Plate - CAD Model

Improved Design of Top Plate - CAD Model

Improved Design of Wearable pivot - CAD Model

Improved Design of Wearable pivot - CAD Model

Printed View of the real parts

Printed View of the real parts

The Method of crimping and attaching system

The Method of crimping and attaching system

Picture of crimped and attached system

Picture of crimped and attached system

Solidworks Models

These models are representations of our current test model, Mark I, and the second iteration, Mark II, that we are currently working on.
Overview of the Solidworks model for Mark I design

Overview of the Solidworks model for Mark I design

Side view of the Solidworks model for Mark I design

Side view of the Solidworks model for Mark I design

Overview of the Solidworks model for Mark II design

Overview of the Solidworks model for Mark II design

Side view of the Solidworks model for Mark II design

Side view of the Solidworks model for Mark II design

Exploded view of the Solidworks model for Mark II design

Exploded view of the Solidworks model for Mark II design

Test Results Summary

Engineering Requirements With Alpha Test Schedule

Engineering Requirements With Alpha Test Schedule

Link to Document here

Test Plan Timeline:

Testing Has Been Run on (General Testing):

Bill of Materials

Parts Queue

Parts Queue

Link to Document here

Alpha Bill of Materials

Alpha Bill of Materials

Link to Document here

Order List

Order List

Link to Document here

Risk and Problem Tracking

Logistical Risks

Logistical Risks

Technical Risks

Technical Risks

Link to Document here

Problem Tracking

Problem Tracking

Link to Document here

Functional Demo Materials

Link to Customer Meeting 2/7 Pre-Read here

Link to 2/24 Review Pre Read here

Link to 2/24 Review Agenda here

Plans for next phase

Individual Plans

Link to Updated Gantt Chart here

Key Milestones for Next Phase

Final Layout of Beta

  1. Are we going to use an X layout or a + layout for brakes?
  2. How will we attach brakes so they do not slide when brakes are active?
  3. What type of battery will we use?
  4. Complete initial Beta build.
  5. Complete Bet CAD model.

Alpha Testing

  1. General Testing
  2. How will the brakes perform in different orientations (compare to normal orientations?
  3. Engineering Requirements Testing.

Logistical

  1. Where are we going to purchase products supplied by Amazon?

Imagine Outlook

Link to Updated Imagine Vision here

Link to Imagine Proposal Description here

Link to IRB Submission (.zip) here


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