P20006: BalanX Exercise Machine
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Preliminary Detailed Design

Table of Contents

Team Vision for Preliminary Detailed Design Phase

Our team planned to begin design of the highest risk details of the exercise machine including the frame and seat and this was accomplished and presented in our preliminary design review.

Feasibility: Prototyping, Analysis, Simulation

All usage scenario requirements were met for the highest risk components of our design; the frame and the seat. Being able to adjust the seat for different use scenarios was a big part of our requirements. The seat in our current design can be folded to adjust for space for a wheelchair via a hinge and latch system and is height adjustable for different sized individuals via a lead screw system. The resistance is adjustable via a resistance band connector system. Evaluation of our team's concepts were performed using Autodesk Fusion 360 and screen shots of the design can be seen below. New risks were added based on this design.

public/Detailed Design Documents/Frame.png

public/Detailed Design Documents/Frame.png

Guide Rail Bracket for Seat Movement

Guide Rail Bracket for Seat Movement

Seat

Seat

Seat Back

Seat Back

Seat Hinge

Seat Hinge

Seat Pin Lever for Latching

Seat Pin Lever for Latching

Lead Screw for Seat Height Adjustment

Lead Screw for Seat Height Adjustment

Band Connector

Band Connector

Inputs and Source

  1. Engineering Requirements
  2. Concept Selection
  3. Results of preliminary prototyping, analysis, and simulation

Outputs and Destination

  1. A list of Design Parameters, Quantified Targets, and acceptable tolerances
  2. Sensitivity analysis
  3. Refined concept Selection
  4. Drawings, Schematics, Flow Charts, etc.

Bill of Material (BOM)

Screenshot of Bill of Materials

Screenshot of Bill of Materials

Input and Source

  1. PRP.
  2. Design Files.

Output and Destination

Completed BoM and Budget

Test Plans

As a team we plan to run material stress analysis mimicking real life use through Autodesk Fusion 360 as well as an ergonomic study when our design is complete.

Design and Flowcharts

Screenshot of Updated System Flow Chart

Screenshot of Updated System Flow Chart

Risk Assessment

Nine new risks were added during this phase associated with the adjustment of the seat, guide rails, resistance band set up, and frame These risks are outlined below:
Screenshot of Risks Added During Phase 3

Screenshot of Risks Added During Phase 3

Design Review Materials

Plans for next phase

In the next three weeks after our review we expect to design the exercise specific components of our machine and ensure our design is complete

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