1. P17082 Biomechanical Elbow Model Build and Test Prep
Maria Romero-Creel, Shannon Keenan, Chris Harley, Amanda Cook

2. Agenda New Issues / Problem Review / Design Updates
Accomplishments since last review
Parts Status
BOM
Build Status
Testing Status and Results
Action Items
Schedule Review
Miscellaneous Deliverables

3. Overview
Team Vision
The plan for this phase was to regroup after the break and evaluate overall project status, goals, and revisit any outstanding action items from the detailed design review and gate review. These action items mainly concerned updating documentation and continuing progress on a prototype. 
Completed Goals:
All necessary documentation was updated
Problem tracking was introduced
Initial plans for a truss structure were used
Possible design competitions were investigated.
Pending Goals:
Completed prototype and test plan data – Due to unlikely difficulties with 3D printing that should not be a regular concern moving forward.

4. New Issues and Design Updates
No new issues have been identified so far.
Design Updates
No updated have been done on the designs of the bones.
Preliminary design of truss was completed.

5. Parts Status and BOM Parts Status:
All missing parts from McMaster Carr have been ordered and are scheduled to arrive next week.
Bones are in the process of being printed.

6. Test Plans – Engineering Requirements Overview

7. Test Plans ER1,2,3 – Static Force of Muscle A, B, and C.
Test - Attach load cell to break in muscle string, hang 250g mass from hand hook, wait for arm to lower under the weight and settle, then get read out from Capstone.
Validity- Force achieved at rest must match accepted anatomical value.
ER4 – Angles at each position
Test - With each muscle attached and load cells strung, and the goniometer attached and reading out to Capstone, the arm is bent at the elbow and moved through the available range of motion.
Validity- readout must show that the arm can move from approximately 0o and 180o.
  ER5 – Max Load
Test -Hang a load of 500g from the hand hook while holding the lower arm up to the upper arm so that the angle of the elbow is approximately 0­o. release the lower arm and allow the weight and lower arm to fall.
Validity- The arm must be able to fall and stop while still holding the weight, staying upright and stable and produce steady force and angle change graphs / tables through Capstone. There should be no bending or material failure in a valid case, and the entire base must still be resting on the tabletop.

8. Test Plans ER6- Muscle Attachment Position
Test - With load cells in place, no weights, and the lower arm resting so that the angle of the elbow is approximately 90o, measure the angles of the muscles with the bones and the distance of the muscle attachment to the bones.
Validity – Both values must be within ±5%of the average adult.
ER7,8 – Deviation and Possible Positions
Test - Set the model in each possible position with the 250g weight. For each position (supinated wrist, pronated wrist, flexed elbow), allow the device to sit, with no contact or extra support from an outside object for 1 minute, measure deviation.
Validity – The position set by the user must not deviate by more than ±1cm during the wait period.
ER9- Time Required for Assembly
Test - Begin with an unassembled device. Start a timer and begin assembly, including the addition of base structure strings, load cells, goniometer, and arm straps. Include all hardware cables necessary for data acquisition (load cells, goniometer).
Validity – The full assembly takes approximately 20 minutes or less to assemble and can support a 250g weight from the hand hook upon completion.

9. Action Completion from Gate Review
Action Item from last review
Update BOM-Amanda & Maria-100%
Review Engineering Requirements - All-100%
Print Full Set of High Density Bones - All - 50%
Build Truss Structure - Amanda & Chris- 90%
Begin Considerations for Paper & Poster - All - 50%
Update Schedule (including Casting Option) - Shannon - 100%
Research Possible Competitions - All - 90%
Consider Current Problems & Plans- All - 100% 
Apply Test Plans to Prototype - All - 0%
Make Any Manual Changes to Bones - All - 0%
Purchasing - Amanda - 90%

10. Action Items Action Items Moving Forward No Casting:
Finish Printing Bones - All
Assemble Prototype w/ subsystems - All
Test Prototype - All
Document Truss Construction - Chris & Amanda
Track Any Problems - Shannon
Make Manual Edits to Bones - All
With Casting:
Prep for Casting Molds – All
Upcoming Deadlines:
Casting Decision Week 3
12 model deliverable decision Week 5

11. Plans & Schedule

12. Individual Three Week Plan
Amanda:
Lead purchasing and budget plans/requests
Work with the team to print the remaining 3-D bones
Actively participate in the building of the truss structure
Test the subsystems (bones, truss structure, and software)Continue to consult with SME for physiological accuracy of the model
Shannon:
Start & maintain problem tracking
Help with managing test plans & results
Begin tracking design competitions and upcoming dates
Assist with construction & printing
Manage timeline on upcoming decisions: Casting & 12 models

13. Individual Three Week Plan
Chris:
Get final prints of all bones (3- 8) hours
Any solidworks modeling/ drawing updates
Test plan finalization (6-8) hours
Begin building the first unit (5)
Begin testing of the first unit (6 hours)
Maria:
Consult SMEs and Customer and decide on casting vs. 3D printing.
Participate in printing and testing of design.
Participate in building and assessing feasibility of model.
Consult SMEs and help ensure physiological accuracy of model.
Work on manual for building, testing, and using the completed model.

14. Miscellaneous Deliverables
ASME IAM3D Challenge: (April 21)
IEEE Design Competition: (June 1)
BMES Design Competition: (No available date yet) is for 2016 but hopefully maybe there's a 2017 one?)

15. Questions or Suggestions?