P17082 Integrated System Build & Test Review Maria Romero-Creel, Shannon Keenan, Chris Harley, Amanda Cook

Agenda Problem Review / Design Updates Accomplishments since last review Build Status Testing Status and Results Action Items Schedule Review Miscellaneous Deliverables Issues and Concerns

Overview Team Vision The goal for this project phase was to finalize the model design and gather anatomical information to complete the test plans for the first model. Additionally, the goal was to prepare for final model scale up and submit necessary information to ImagineRIT and design competitions. Completed Goals: Updated Bone Design according to SMEs input Printed new radius for testing Submitted to ImagineRIT Submitted to Biomechanics Design Competition Considered solutions to set muscle and angle string lengths Pending Goals: Finalize Testing Print new model after model 1 testing is complete  

Action Completion from Build and Test Prep Review Action Item from last review Analyze Test Data 70% Model 1 Testing 80% Model User Manual 50% Continue Printing Bones (on going) 0% American Society of Biomechanics Paper 100% - ImagineRIT submission 100% Update bone designs and attachment points - 100% Recieve SME input on design - 100% Obtain test equipment and work space access - 90% Individual Contributions: Analyze Test Data - All Model 1 Testing - All Model User Manual - Maria & Amanda Continue Printing Bones (on going) - All American Society of Biomechanics Paper - Amanda - ImagineRIT submission - Amanda Update bone designs and attachment points - Chris & Amanda Receive SME input on design - Amanda Obtain test equipment and work space access - Shannon

Design Updates Updates on bones New attachment points Larger bend in radius to allow for better wrist rotation Hole in humerus for truss bar Larger ‘pads’ for hinge to screw on Printing Updates Radius 3D printed yesterday (only bone necessary to complete testing, other bones will be reprinted after Model 1 testing is compelted)  

Test Plans – Engineering Requirements Overview

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.

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 Validity – The full assembly takes approximately 20 minutes or less to assemble and can support a 250g weight from the hand hook upon completion. ER11- Structure Dimensions Validity – The base of the device must be within 2ft by 2 ft.

Testing Results

Problem Tracking

Action Completion Review Action Item from last review Analyze Test Data 70% Model 1 Testing 80% Model User Manual 50% Continue Printing Bones (on going) 0% American Society of Biomechanics Paper 100% - ImagineRIT submission 100% Update bone designs and attachment points - 100% Recieve SME input on design - 100% Obtain test equipment and work space access - 90% Individual Contributions: Analyze Test Data - All Model 1 Testing - All Model User Manual - Maria & Amanda Continue Printing Bones (on going) - All American Society of Biomechanics Paper - Amanda - ImagineRIT submission - Amanda Update bone designs and attachment points - Chris & Amanda Receive SME input on design - Amanda Obtain test equipment and work space access - Shannon

Action Items Action Items Moving Forward Finish Building Model 1 Test Model 1 Build and Test 6 models Complete ImagineRIT deliverables Finish Manual High School Presentation deliverables (by next Friday)

Plans & Schedule

Miscellaneous Deliverables Summary: American Society of Biomechanics Paper – Written and submitted. RIT Imagine – Poster – Written and submitted. Biomedical Engineering Society – Not written or submitted High School Presentation – Printing of bones completed

Individual Three Week Plan Amanda: Actively participate in the testing of the completed model (12 hours, ongoing) Consult with RIT athletic trainers to ensure the model behavior is anatomically accurate (ongoing) Update the bill of materials, as necessary (1 hour, ongoing) Keep track of conferences and submittal dates (1 hour, ongoing) Finalize the paper and work on a poster for the RIT Imagine display (8 hours, ongoing) Participate with the construct to show high school students the project (3 hours, April 7th) Shannon: Updating Problem Tracking Keeping track of status of each model’s build and test Assist with construction & printing of more models Manage deliverable status

Individual Three Week Plan Chris: Continued modeling of bones and complete system in Solidworks (10 hours) Research specific parts that we will need to buy (5 hours) Research additional 3d cad methods for creating bones (5 to 10 hours) Finish the static analysis of the 3 force system, consult a professor (5 hours) Research materials to build the bones out of. (3 to 5 hours) Maria: Participate in building and testing of model Update Testing Plans file with raw data and results Work on manual for proper assembly and usage of model Communicate with Dr. Bailey to ensure customer requirements are being met / make sure assumptions about angles and tensions are correct

Issues and concerns Gigabot experiencing issues (yesterday)

Questions or Suggestions?

Material Information String Information from PASCO