1. SVAT Mid Semester Design Review October 1, 2013 1

2. Project Sew Kelsey Wasilczuk Jennie Boehm Alex Mount Haley Smith Scott Vicenzi 2

3. Outline Client Background Prototypes o Senior Design o EPICS Semester Two o EPICS Current Semester Future Plans 3

4. Client Background Amputations due to surgery complications She wants to sew for family members 4

5. Problem Statement 5 http://chestofbooks.com/ Team Goal: Design a prosthetic that enables her to sew

6. Prototypes 6 Prototype #1:

7. Prototypes 7 Prototype #2 :

8. Feedback Recent meeting outcomes: o Happy with simplicity of design o Wants a rough surface on outside edge in between her thumb and finger o Wants rounded edges and a longer extension o Interested in padding on the interior to provide more comfort 8

9. Prototypes Prototype #3 9

10. Padding Analysis 10

11. Future Plans 3D print prototype #3 Obtain samples for rough surfaces Meet with client Machine final prototype out of Delrin® 11

12. Questions? 12

13. Braille eReader Kyle McNulty Daniel Darcy Daniel Delacruz Jessica Place 13

14. Problem Currently only single-line Braille readers on commercial market Prices range from $2,500 to $15,000 on average Single-line devices can only display 40 – 80 characters at a time o Requires constant refreshing of device Research teams all over the world have explored a variety of solutions. o Many projects found a solution but were never able to commercialize it. o Federal funding for research projects on multi-line readers has shrunk. 14

15. Week # Activity12345678910111213141516 Research: braille language, braille displays Meet with Dr. Greg Williams Disassemble HP PSC 3155 printer Interface printer with Arduino Motor Knob Arduino activity Design CAD sketch Order parts Mid Semester Design Review Build scaled prototype Program run cycle for prototype Test prototype for robustness and positional accuracy Program device to allow display user inputted character in braille Prepare for Design Review Design Review Semester Timeline 15

16. Semester Progress Researched methods of pin actuation o Piezoelectric o Electromagnetic o Wedges o Hydraulics o Electroactive Polymers (EAP) Met with Dr. Williams, our project partner Disassembled an HP Inkjet printer o Inkjet printers contain a timing belt system that controls the printer head Presently working to control the printer’s stepper motor with our own microcontroller. 16

17. Semester Progress 17

18. Semester Progress 18

19. Semester Progress 19

20. Current Solution 20 Electromagnetically actuated pins o One solenoid per pin Pin actuation mechanisms located on moving platform. A servo motor and timing belt system moves the platform in a linear motion Platform will begin beneath line one, then move line by line down the device Braille characters will be set one line at a time, then locked in place.

21. Basic Idea: Timing Belt System 21

22. Issues Finding additional target users to test our device Getting the printer to work with the stepper motor o Allows team to control its movement o Our electrical components may not work with the HP printer May need to build new device 22

23. Fall 2013 Goals Build a proof of concept device o Built to 3x scale, approximately 30”x30” Select the best mechanism to actuate pins Test device according to the following criteria: o Robustness o Positional Accuracy o Maximum Refresh Speed Program a basic user interface o User inputs English character o Device displays the braille character 23

24. Future Plans Scale prototype to be 10” x 10” Program an advanced user interface Display graphics using braille pins Create a device that makes computer programming easier for the blind 24

25. We welcome any Questions, Comments, or Recommendations 25

26. Medicine Cabinet 26

27. Introduction Ryan Reichert – Mechanical Engineering Tom Bruttomesso – FYE (Planning on going into Mechanical Engineering) Steven Larson – FYE (Planning on going into Biomedical Engineering) 27

28. Community Need Centers for Disease and Control Prevention reports that 100 people die from drug overdoses every day. We need to discover a way so children and teens cannot simply open a prescription bottle and take the medicine inside of it. Most of the overdoses are from children under the age of five and teenagers. 1 in 5 teens have abused drugs. 28

29. Project Background The project was started in the Spring of 2008 In the Fall of 2009 a plexiglass container was made o Was able to hold 1-2 pill containers Fingerprint hardware was completed 29

30. Goals The box should be able to hold one prescription pill bottle to be used when prescription drugs are taken home. Quick and simple manufacturing process. Create a locking mechanism that will be 99% reliable when in use Box can withstand abuse up to explicit attempt to break in. 30

31. 31

32. Conceptual Design The box will be opened from a fingerprint scan from the user o User will have a brief timeframe to open the door before the door locks A button will be placed on the door frame to check if the door is in a closed state o Only then will the stepper motor will change the lock position In its passive state, the door will be locked Have a backup lock as a manual overdrive for the fingerprint scanner. 32

33. Conceptual Design The pillbox should hold at least one prescription bottle. o Not too bulky o Compact yet sturdy Box will be separated into two compartments, separating user from technical components Lock will feature a stepper motor rotating two reinforcing bars, that will rotate into a slit on the door panel. 33

34. Budget Information Budget is still being finalized Currently predicting $15-$30 for the stepper motor Approximately $60-$70 dollars for the box framing and internals 34

35. Current Progress Acquiring Skills: o Solidworks, Autodesk o Arduino coding Electronics: o Circuit Design (In progress) o Coding the Arduino Design: o Analytical modelling for internal gear design o CAD drawing for rapid prototyping o Manual override design 35

36. Questions? 36

37. Microprocessor Leonidas Georgakopoulos Chen-Hsiang Ko Christian Knebel 37

38. Project Partner: St. Vincents Therapists use a soccer ball to try and track strength of patients It is hard to quantify the strength of the patient without electronic equipment 38

39. Objective The microprocessor team was created to provide programming support to teams that had hit a roadblock due to a lack of these skills Three teams required programming help: o Fatigue o HEC Hardware o Ball 39

40. Fatigue and HEC Hardware Fatigue Purpose: To help therapists measure muscle fatigue in patients Programming Requirement: The programing microcontrollers to communicate between a computer and an accelerometer HEC Hardware Purpose: To create a device to run computer games off of that is durable Programming Requirement: The programming of a microcontroller to record drum hits and send them to a computer 40

41. Ball Purpose: To create a device to place inside a soccer ball that will quantitatively measure the acceleration and force of a kick Programming Requirement: The creation of a code to record data sent from an accelerometer and graph the data 41

42. Ball (cont.) Progress: o A device has been created to gather data from the soccer ball and wirelessly send the data to an excel program o The excel program then graphs that data for the therapist 42

43. Excel Menu 43

44. Output 44

45. Future Problems Removal of need for user input in collection of data Power conservation of accelerometer device inside the ball Wireless communication range 45

46. Thoughts and Concerns? 46