1. May15-03 Design Review Team (May 15-03) Shawn LaGrottalagrotta@iastate.edu Matt Eckesmweckes@iastate.edu Jacob Mayerjdmayer@iastate.edu Trevor Boonetdboone@iastate.edu Jacob Schulzjschulz@iastate.edu Client HGST Advisor Mr. Harker

2. May15-03 Problem Statement Background Requirements Literature Review System Overview Concept Explanation Concept Sketch Hardware Design Existing Technology Custom Parts Software Design File Parsing Server-Client Robot Control Project Management Risks Cost Schedule Agenda

3. May15-03 PROBLEM STATEMENT

4. May15-03 Background Malfunctioning HDD Send HDD to engineer Shipping costs High turn around time Find via using chart Time consuming Easy to make mistakes Manually probe via

5. May15-03 Functional Requirements Control system for oscilloscope probe LeCroy Oscilloscope Probe Objective Enough pressure to make good electrical contact with PCBA Contact Execute commands from remote user Control

6. May15-03 Non-Functional Requirements Move to test point within 60 seconds Time LEDs and LCD display to show operational status Indicators Provide status feedback to the user Communication System should be limited to 4 cubic feet Size

7. May15-03 Market Survey Bed of NailsFlying Probe Pros Cons

8. May15-03 SYSTEM OVERVIEW

9. May15-03 Concept Explanation Hardware 3D Printer HDD Jig Probe Holder Software File Parser Client- Server Robot Control

10. May15-03 Concept Sketch

11. May15-03 HARDWARE DESIGN

12. May15-03 Existing Hardware RepRap Prusa Mendel I2

13. May15-03 Custom Hardware – HDD Jig Material: Aluminum Supports 2.5” HDD Secured using latches

14. May15-03 Custom Hardware – Probe Holder Material: ABS Plastic Supports LeCroy PP007 Probe Fastens into 3D printer carriage Spring loaded tip

15. May15-03 Hardware Testing Motor Controls X, Y, and Z Motion Probe Electrical Contact Transition Time Locating Test Points

16. May15-03 SOFTWARE DESIGN

17. May15-03 Overview Software is broken up into three main modules: client, server, and robot. User Interface & Web Client Web Server Firmware Host Software & G-Code Interpreter Gerber & Tool File Parser G-Code Generator

18. May15-03 File Parsing Copper Drill Solder Mask Gerber files Combine X,Y Parse Test Points

19. May15-03 Calibration Manually move probe over left most bottom via to set the origin

20. May15-03 Server-Client The client software allows for control by the user and communication with the server. The server is a point of communication for the client for management and delegation of actions to the robot.

21. May15-03 Robot Control A source (server) inputs G- Code… …Then the host software & firmware outputs electrical control signals which manipulates the robot. Host Software G-Code Interpretation Command Generation Command Management Delegation to Firmware Firmware Command Execution Signal Generation Status Updates

22. May15-03 Software Testing Operational Tests of GUI Navigation to Points File Management Unit Tests Via Selection Module File Selector Module Embedded Communication Module

23. May15-03 PROJECT MANAGEMENT

24. May15-03 Risks Operation HDD Damage Calibration Issues Time Part Fabrication Unexpected Challenges Legal Proprietary File Sharing Licenses

25. May15-03 Costs CostDescription $619.37RepRap Prusa i2 3D Printer Kit $40.00Raspberry Pi B+ w/ 8GB NOOBS microSD card $5.99AC to DC 5V 2A international to microUSB $32.00SainSmart LCD Control Panel $5.05Locked Spring Loaded Metal Security Barrel Bolt Latch 5.5cm ~$10.00Probe Holder (3D Printed) at $5/in 3 ~$100.00HDD Jig ~$863 / $1500Total / Budget

26. May15-03 Schedule – Fall

27. May15-03 Schedule – Spring

28. May15-03 Summary Problem Remote HDD Testing Hardware Solution Modified 3D Printer Software Solution Web + Python + Printer Cost ~$863 / $1500 Delivery May 2015

29. May15-03 QUESTIONS?

30. May15-03 Block Diagram