ID Risk Item Effect Cause Likelih ood Severi ty Importan ce Action to Minimize Risk Owner Describe the risk briefly What is the effect on any or all of the deliverables if the cause actually happens? What are the possible cause(s) of this risk? L*S What action(s) will you take (and by when) to prevent, reduce the impact of, or transfer the risk of this occurring? Who is respons ible for followin g through on mitigatio n? 1 Is TPU foam the best option for preventing concussion impacts Won t change our. However future MSD s could be focused on the new New types of foam are discovered 3 1 3 This concern is outside the scope of the. We accept that this is a high possibility None 2 Cell wall stiffness will affect density calculations and size This will primarily determine how big our foam s are Printer 2 2 4 Design around this parameter 3 Time requiremen ts to scan, import, and print must be short to make production practical Slow production will hinder product adoption Printer speed, required 3 2 6 Reduce requiremen t without increasing impact force s to the head Nate/Tiffany
4 Will the design and phase require more than expected Increased cost Varied designs to test 2 3 6 Use computer modeling to insure the design is viable before actual 5 How will 3D printed foam help reduce concussion s from rotational impacts Effectivenes s at concussion prevention is reduced Foam is primarily used for linear impacts. Straps can help with rotational impacts 3 3 9 A neck guard while not within the scope of the could be helpful in reducing rotational forces on the neck Nate/ 6 Printer failure time Human error or machine malfunctio n 3 3 9+ Learn how to properly operate within its parameters 7 Printer availability time Other students needing time 1 1 1 Plan time a week in advance with customer 8 Printer size Limits size Defined 2 2 4 Design the size within Kayla
9 Printer operability Printer can malfunction and delay requirement s Ignorant operation of 3 3 9 Learn required skills to operate efficiently 10 Customer accessibilit y Required answers could delay schedule Dennis travels a lot for work 3 2 6 Plan meetings in advance. Constant email contact with customer 12 High test rig costs/failur e Go over budget building test rig/failure can delay foam Expensive parts/sens ors. Improper build technique s 3 3 9 Visit design lab to witness proper build techniques 13 Sense software produces incomplete scans Extra time reproducing complete scans Limited of Sense hardware and software 3 2 6 Expect extra time to obtain complete and usable head scans/chec k with Dennis Nate/Tiffany 14 Integrating solidworks and scanning software Frustration with obtaining custom sizes Limited of Talking between software s 3 3 9 Check with Dennis/tea m members Tiffany 15 Acceleratio n sensor accuracy Inaccurate measureme nts of impact forces Inefficient placement or lower quality sensor 1 2 1 Preliminary will show how good a sensor we need
16 Failing to meet plan deadlines Fall behind schedule and miss deliverable due dates Related to numerous other concerns and risks 2 2 4 Constant contact with team members. Be willing to ask if you need help 17 Cracked plastic helmet during Increased cost for extra helmet and delayed time Hard impact 2 3 6 Research previous test plans. Did they have this problem within test parameters? 18 All printed designs do not meet requiremen ts spec Unmarketable idea. Maybe printed TPU is inefficient compared with marketed helmet foams 3 3 9 Develop, follow, and maintain proper sequence of tests Kayla 19 Attachment failing Inaccurate force measureme nts. Failed test Adhesive used to apply foam s fails 1 2 2 Durability issue most likely apparent during. Apply more adhesive
20 Material sensitivity to water/swea t and cleaning solutions Does not meet biocompatibility and parameters TPU form does not respond well to wet conditions 1 2 2 Prior TPU analysis has shown this is a non-issue with this foam. However could change this 21 Helmet durability Test fails required parameter Foam is not durable/he lmet breaks during 2 2 4 Redo design for next test with high emphasis on durability 22 Loss of parts Increased budget cost. We lose parts for the 2 3 6 Materials required to be locked up after use 23 Scanner does not perform up to standards Lose way of scanning a person s head, Scanner is not high quality 3 2 6 Create models that allow measured parameter to be entered Tiffany 24 Makerbot is not operational every time we need it to be Delays test plan and the production of the foam Flexibility of filament causes jamming and other extrusion issues 3 3 9 Try a new type of filament with similar properties. Order new parts for the Tiffany/Kayla Severity Scale: 1 = Not Severe 2 = Moderately Severe 3 = Very Severe Likelihood Scale: 1 = Not Likely 2 = Conceivable 3 = Very Likely Importance = Likelihood*Severity