GAM FDR pres

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Final Design Review Presentation Henry E. Lackey High School Engineering Design & Development (EDD) Mr. Crawford Period 2 GAM ENGINEERING GEORGE JENKINS – PROJECT MANAGER ASHLEIGH KRUCHESKY MICHAEL LAURY WRITING WITH ARTHRITIS ASSISTANT

Transcript of GAM FDR pres

1. Final Design Review Presentation Henry E. Lackey High School Engineering Design & Development (EDD) Mr. Crawford Period 2 May 21st, 2014 GAM ENGINEERING GEORGE JENKINS PROJECT MANAGER ASHLEIGH KRUCHESKY MICHAEL LAURY WRITING WITH ARTHRITIS ASSISTANT 2. THE PROBLEM There are 50 million people in the U.S. with arthritis, and by 2030, an estimated 67 million Americans, ages 18 years or older, are projected to have doctor-diagnosed arthritis. Those affected by this disability tend to have trouble with performing everyday activities using their hands, the most troublesome task being to write. 3. THE PURPOSE To reduce the difficulty that people with arthritis encounter when applying pressure to grip a writing utensil. 4. Justification 5. EXPANDING MARKET Arthritis is a disorder which affects the joints of a person. Arthritis both stiffens the joint, as well as causes pain when fluxuation occurs within the joint. Arthritis is expected to effect 34% more people in the next 20 years. Juvenile Arthritis, those effected under the age of 18, is rapidly growing at a rate of 7% each year. o The growth is due to the youths increasing usage of technology including: Cell Phones Gaming Devices IPods (N.A). (2012) Arthritis facts and background .1(1), 1-12. Retrieved December 14, 2013, from http://www.JohnHopkinsResearch/Arthritis/02341facts 6. COST OF ARTHRITIS Every year, more than 1.4 billion dollars are spent on arthritis aids/supplies throughout the world. 1.2% of the 1.4 billion dollars is spent on existing writing aids, meaning over 16 million dollars is spent annually for these products. (2011). 2006 and 2007 Market Estimates. Arthritis Industry Sales and Usage,1(1), 219-224. Retrieved December 13, 2013, from http://www.Healthcare.gov/opp00541/Arthrsales/012Arthritis 7. THE NATIONAL ARTHRITIS FOUNDATION According to a recent study done by the National Arthritis Foundation, the most troublesome object to grip and actually use is the writing utensil. These arthritis patients have a very hard time to write; even to just sign their name. 87% of people under the study said writing was the most difficult task to complete while coping with their arthritis. Dr. Baldwin, Karenina. (2012). Most Troublesome Object Survey. Retrieved November 17, 2013, from http://www.NationalArthritisFoundation.com/Connect/Surveys/000163c 8. Existing Solutions 9. BipGrip Pen Grip A widened pen holder mechanism Pros Cons Light weight Affordable Little grip required Versatile Uncomfortable Requires grip Plastic breaks easily Cost: $9.95 BipGrip BipGrip Pen Grip. (n.d.). Pen Holding systems, equipment and workshops from BipGrip . Retrieved December 15, 2013, from http://BipGrip/Arthritssupplies/pengrip/012243054 10. EZ-Grip Pen Grips Individual grips, especially designed for users with arthritis. Pros Cons Light weight Affordable Versatile Requires equivalent grip pressure of a typical pen. Non-durable Cost: $3.95 The Writing Supply Store. (n.d.). EZ-grip pen grips from the supply store. Retrieved December 17, 2013, from http://www.thewritingsuppliestore.com/c- 170-ez-grip-pens.aspx 11. Ring Pen Custom pen, put index finger through slot and write. Pros Cons Little grip required Affordable Versatile Light weight Position uncomfortable for knuckle joint. Limited life span Cost: $9.95 Ring Pen USA. (n.d.). Arthritis aid pen from Ring Pen USA . Retrieved December 15, 2013, from http://www.ringpenusa.com/ring-pen/ 12. Market Research National Arthritis Foundation & Survey Monkey Survey 13. GAM FORUM WITHIN THE NATIONAL ARTHRITIS FOUNDATION Within the National Arthritis Foundation website is a connect section, where actual people with arthritis can voice their opinions. The GAM engineering team created a Forum under this website to further research the problem and promote the survey on Survey Monkey. G.A.M.Engineering14.(2013). Writing With Arthritis . Retrieved November 17, 2013, from http://community.arthritis.org/go/thread/veiw/143393/30148403/Writing_With _Arthritis 14. GAM FORUM: THE PEOPLES RESPONSE The GAM forum received over 50 responses from actual people dealing with arthritis. Amongst the responses, key data obtained included: o The majority of the people did have a lot of trouble writing. o Children with juvenile arthritis tend to have many struggles with writing. o Many took an interest in our idea, no one knowing of a device which had the same function as our idea. o There was an overwhelming sense of support and encouragement for our idea; most responders would definitely buy our product. G.A.M.Engineering14.(2013). Writing With Arthritis . Retrieved November 17, 2013, from http://community.arthritis.org/go/thread/veiw/143393/30148403/Writing_With _Arthritis 15. THE SURVEY The first question was do you have arthritis? If the respondent answered yes, the survey was valid. If they answered no, the survey was not valid. The GAM survey had 97 valid respondents. The survey was open to the general public. Responses could have come from anywhere in the U.S. The following are the results. 16. MARKET RESEARCH All the people who took the survey said to have trouble gripping objects, proving that arthritis effects the ability to grip objects. Everyone does use a writing utensil daily, showing the product would be beneficial to have, since it would be used daily. 17. MARKET RESEARCH 64% of those surveyed use their writing utensil 5 times a day or more, showing the product has to be very durable for many uses. 88% found writing with arthritis difficult, justifying the need for a product to assist those effected. 18. MARKET RESEARCH 96% of the people surveyed have at least some interest in the product, and 52% were very interested. 64% of the people surveyed would be willing to spend at least $20 on the product. 19. Product Development 20. CRITERIA 1. The product must be universal in terms of the device working for men, women, and young adults of most hand sizes and must be universal to hold any sized writing utensil. 2. The product must be easily attached in less than 30 seconds. 3. The device must require no grip from the user while writing. 4. The handwriting from the device must be legible or not dramatically changed from the users original handwriting. 5. The products cost cannot exceed more than 20 dollars. 6. The device cannot weigh more than 1 pound. 7. The products life span must meet at least 9 months. 21. BRAINSTORMING IDEA 1 A Velcro strap would wrap around the users hand. The strap has a series of elastic band loops, which the pen will go through. These bands will secure the pen so it does not move when pressure is applied. The pen will rest snuggly against the users palm. 22. BRAINSTORMING IDEA 2 The larger loop is an adjustable Velcro ring. Connected is a plastic pen holder, in which the pen would be inserted, and would be fastened by a mini clamp on the side. Users would have the pen attached directly to their index finger. 23. BRAINSTORMING IDEA 3 A Velcro strap would wrap around the users hand. Attached to the strap is a plastic mold, into which a pen could be inserted. To secure the pen, the user would tighten the screw top which would fasten the pen down firmly into the mold. The mold would rest on the users palm. 24. BRAINSTORMING IDEA 4 The pen would be inserted into the stress ball, which has a hole through the center. The pen would stay secure because of the compression the ball would apply. On the top and bottom was an attached elastic band, which would wrap around the users hand, securing the ball to the users palm. 25. BRAINSTORMING IDEA 5 The user would put on the glove. The pen goes in between the index and middle finger. There between the two fingers is a block angled and tapered, which has straps to hold the utensil in place. This block is connected to the glove by an adhesive or by sewing, which ever attachment method is more favorable from material research. 26. DECISION MATRIX Weighted Heavily: Affordability, Feasibility, and Ease of Use. Weighted: Weight, Durability, and Universality. Scale: 0 Low 1 Neutral 2 High Weight Elastic Band Holder Ring Holder Plastic Mold Holder Stress Ball Holder Glove Holder Decision Factors Rating Weighted Score Rating Weighted Score Rating Weighted Score Rating Weighted Score Rating Weighted Score Afforability X2 1 2 1 2 1 2 2 4 2 4 Feasibility X2 1 2 0 0 0 0 2 4 2 4 Ease of use X2 1 2 1 2 1 2 1 2 1 2 Weight X1 2 2 2 2 1 1 2 2 2 2 Durability X1 1 1 1 1 2 2 0 0 2 2 Universality X1 2 2 2 2 2 2 1 1 1 1 Total 11 9 9 13 15 27. PRELIMINARY DESIGN 28. Product Design & Build 29. INVENTOR MODEL 30. WORKING DRAWING 31. MATERIAL SELECTION Arthritis Glove 3-D Printer Plastic Block Mini Elastic Bands Sewing Materials (Needle & Thread) Super Glue 32. DESIGN BUILD 3-D printed the plastic block. Drilled holes into the block in order for the block to be sewn to the glove. 33. DESIGN BUILD Attach block onto glove by sewing. Attach bands to block by super glue. 34. Preliminary Testing & Revisions 35. PRELIMINARY TESTING Device was tested on functionality. Device was attached and a sentence was written with it. The product failed this test: o One of the bands broke. o There was not sufficient friction between the block and the pen to prevent vertical motion. 36. DESIGN REVISIONS An additional band was added to the design. The rubber bands were replaced with hair ties. A piece of foam was added to the block to increase the coefficient of static friction of the material surface. 37. REVISED INVENTOR MODEL 38. PLASTIC BLOCK WORKING DRAWING 39. ASSEMBLY WORKING DRAWING 40. BILL OF MATERIALS Part Unit Dimensions Retail Price Price per Unit Quantity Used Total Cost Retail Source Arthritis Glove 2 Gloves $14.99 $7.50/Glove 1 Glove $7.50 Wal-mart.com ABS Plastic 1 inch^3 $4.00 $4.00/in^3 0.12in^3 $0.48 forums.reprap.org Support Material 1 inch^3 $1.63 $1.63/in^3 0.02in^3 $0.03 www.engineering.com/3DPrinting Hair Ties 50 Count $1.25 $0.03/Band 6 Bands $0.18 Wal-mart.com Thread 1 ft $0.25 $0.02/inch 6 inches $0.12 Wal-mart.com Hot Glue 12 Sticks - 4 inches $2.25 $0.05/inch 2 Inches $0.10 Wal-mart.com Bill of Materials Total Cost $8.41 WEIGHT OF THE DEVICE The devices total weight is 0.5lbs. 41. Prototype Testing 42. TESTING ATTACHMENT TIME The device had to be fully attached in under 30 seconds. For the test, the user had to: o Put on the glove. o Insert a writing utensil into the block. The user was timed from start until the pen was properly secured. 43. TESTING ATTACHMENT TIME 44. TESTING ATTACHMENT TIME Trial Number Elapsed Time (Seconds) 1 18 2 17 3 18 4 16 5 16 6 17 7 18 8 16 9 18 10 16 11 17 12 18 13 18 14 17 15 18 Average 17.2 45. TESTING MAXIMUM APPLIED FORCE The test was conducted to see how much force could be applied to the pen when writing before the friction between the pen and the block converted from static to kinetic friction. A spring scale was connected to the tip of the pen and then was pulled. The maximum applied force(lbs) was recorded when the pen initially moved by the force acting on it. o This represented the same force that the user could press down on the pen before it would move. 46. TESTING MAXIMUM APPLIED FORCE 47. TESTING MAXIMUM APPLIED FORCE Trial Number Force(lbs) 1 1.7 2 1.8 3 1.6 4 1.8 5 1.5 Average 1.68 P - Pressure F - Force A - Area of a circle - Radius of a circle P = F/A P = 1.68lbs/ 0.0112 P = 152.727psi A = 2 A = 0.062 A = 0.00362 A = 0.0112 The average person applies approximately 103psi to their pen when writing. 48. TESTING WRITING WITH THE PROTOTYPE The handwriting from the device must be legible or not dramatically changed from the users original handwriting. In testing, the user had to write the following sentence with and without the glove. o The quick brown fox jumps over the lazy dog. The handwriting was then compared with a side by side comparison. 49. TESTING WRITING WITH THE PROTOTYPE 50. TESTING WRITING WITH THE PROTOTYPE 51. RELIABILITY TESTING Durability of the bands. 1,350 trials completed. Device never failed through the duration of the testing. 52. Design Analysis 53. DESIGN ANALYSIS The device can be used by most sized hands but is limited to pen sizes less than 0.453 inches in diameter. The attachment time of the device is under the 30 second constraint. The device does not require any grip from the user, although placing the thumb on the tip of the pen without pressure increases functionality of the device. Handwriting from the device is practically identical to the original handwriting from the user. 54. DESIGN ANALYSIS The user can provide a sufficient amount of force to the pen in order to write. Products cost is under the 20 dollar constraint. Products weight is under the 1 pound constraint. All reliability testing indicates products lifespan is over 9 months. The prototype is a marketable design that meets the needs of the target consumer. 55. Time Management 56. GANTT CHART - COMPRESSED 57. Gantt Chart - Expanded 58. The Future 59. MARKETING PLAN GAM engineering would mass produce the prototype. o The gloves and bands would be bought in bulk. Manufacturing processes include: o Connecting the block to the glove through plastic injection molding. o Connecting the bands to the block by glue through human labor. The cost of labor would be little since most of the production is through automation. The cost would be set at $15, making close to a $5 profit per glove. o The price fits into the price range of 84% of the target market. 60. NEXT GENERATION PRODUCT Device would be able to hold any type of pen. o Clamp to replace bands. o Alternate bands Bigger Block o More bands on the block o Greater pen stability 61. NEXT GENERATION PRODUCT Strap loop for attachment o Instead of the user having to grip the end of the glove, they would just have to pull a loop with their finger hooked through to secure the glove. The device would be built for left handed people to use as well since the prototype is specifically designed for right handed consumers. 62. Questions 63. REFERENCE - MOTION OF WRITING Fine motor control is the coordination of muscles, bones, and nerves to produce small, precise movements. An example of fine motor control is picking up a small item with the index finger and thumb. Fine Motor skills are the precise movements of the hands, wrists, fingers, feet, toes, lips, and tongue. Problems of the brain, spinal cord, peripheral nerves, muscles, or joints may all decrease fine motor control. Mannheim.(2013).Fine Motor Control. Retrieved January 14, 2014, from http://www.nlm.nih.gov/medlineplus/ency/article/002364.htm