1. Preliminary Design Review Week 7 Group A3: HMS “Bloodhound” Matt Prygoski Matt Morris Jay Slaggert Fred Thwaites Dan Zibton Thursday March 20, 2008

2. Begin Building Boom and Mast for Final Prototype All PVC has been purchased Rely on pressure fits until sensors can be mounted Glue once position has been field tested Previous Week’s Action Item #1

3. Boom Parts List: Segments of 1.5 inch ID PVC pipe 1 mounting flange 2 female-female 90 degree elbows 1 ‘T’ joint

4. Order Components for Drive System Specifically the motors, driveshafts, and bearings Motors have been ordered and should arrive today Driveshafts and bearings have not been ordered We wanted to finish our detailed CAD model These parts depend on the vehicle size and layout Previous Week’s Action Item #2

5. Motor Specifications Top speed: 380 rpm Stall Torque: 1.7 Nm Length: 4 inches Shaft: 7 mm with flat 6 or 12 Volts Meant for direct wheel connection Previous Week’s Action Item #2

6. Current Status of Concept Third Generation CAD model including… Boom Assembly Drive Assembly: Motors to Wheels Body Assembly: Shouldered Panels

7. Detail of the Drive Assembly Motor 7 mm motor shaft with flat Shaft connector with set screws (self fabricated) ½ inch drive shaft with machined flat Machined aluminum hub 8 inch plastic and rubber wheel Cotter pins (both sides)

8. Current Status of Concept On schedule, but fabrication needs to begin immediately No showstoppers

9. Next Week’s Action Items 1.Interface the motors with the microcontroller - Need to integrate H-Bridges for motor speed control 2. Complete CAD/CAM for all body panels so CNC can begin next week - HDPE and brackets have been purchased

10. Questions???