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Team HazardHawk Team HazardHawk 2008
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Last Week Concept Finalization Complete Preliminary CAD of Concept Complete Budgetary Estimates Parts Selection ○ Complete Material Selection ○ Complete Team HazardHawk 2008
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Last Week GPS and Infrared Testing Complete Select Trade Study Topics Complete Complete Concept Memo Incomplete Team HazardHawk 2008
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Concept Status Body: 2.5’ x 1.3’ x 1’ Arm: Two 30” segments Retractable Equiped with two infared sensors Can swivel 180 o Powered by 12-V DC Motors Tank Drive Each side powered by a 24-V DC Motor LCD Display w/Keypad Team HazardHawk 2008
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CAD
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Preliminary Budget Team HazardHawk Budget ItemCommentsQTYPrice L-BracketHome Depot - For Body8$4.64 HingeHome Depot - For Body2$2.43 HDPEMcMaster-Carr #9785T1621$115.38 MotorMerkle - Korff 24V Gear Motor2$40.00 MotorBi-Polar 2 Phase Motor2$20.00 Drive ShaftMcMaster-Carr #8632T91$22.27 SprocketMcMaster-Carr #6280K3212$15.24 SprocketMcMaster-Carr #6280K3844$50.32 Rod Hobby Lobby Carbon Fiber.5x10x1000mm1$21.00 Screws/BoltsBolts+Nuts100$15.00 HingeFor Arm2$8.50 Battery From Mr. Brownell - 24V Borrowed2$0.00 Gear15 Tooth 1 in.2$23.30 ChainMcMaster-Carr #6261K297 - 7 ft.1$19.18 Chain McMaster-Carr #6261K261 - Connector1$1.34 RingsMcMaster-Carr #98430A138100$8.00 WheelsMcMaster-Carr #2331T184$46.16 BearingsMcMaster-Carr #2705T248$25.92 TOTAL $438.68
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GPS Test Results Data taken on 1/30/2008 Test 1: Start at an arbitrary location, move away from the location for 5 minutes and then return to the location and determine whether coordinates are the same. ○ Start: N 41.7825, W 14.340 ○ End: N 41.7808 W 14.330 Test 2: Start at an arbitrary location, move a great distance away from the location, and looking only at the GPS, return to the starting coordinates. ○ Start: N 41.41.7600, W 86.14175 ○ End: ~Six feet from target
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Trade Study Topics Infrared Sensor Sensitivity Kerry Kalman Filtering Techniques for Improving GPS Precision Tim Kinematic Analysis of the Arm Mechanism Andy GPS: Accuracy, Optimal Usage, etc. Dave Feasibility of Using Wheel Encoders to Improve Navigation Guillermo
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Action Items Complete Concept Memo We will initiate this today (2/5/08) during our group meeting and divide the memo into parts Individual Assignments will be completed by Thursday (2/7/08) The memo will be compiled during the group meeting on Thursday (2/7/08) Trim Budget Investigate Different or Scrap Material for body Look into used wheels Talk to Mr. Brownell about less expensive motors Team HazardHawk 2008
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Action Items Order Parts We will put in our online McMaster -Carr order on Friday (2/8/08) after double checking our B.O.M and consulting with Mr. Brownell and Prof. Strebinger on our arm material selection Complete Trade Study Proposals Individuals will complete their assigned proposals by 2/12/08
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Team HazardHawk 2008
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