Kurran Kelly – Lead Designer Silas Van Natter – Team Lead Josh Van Patten – Team Budget Manager Brandt Pedrow – Team Liaison and Recorder Branden Bakken – Team Website Manager 1

Mechanical Targets Size Fits in a 72x36x36 in Box Currently about 35x15x15 Weight Must be under 120 pounds Aiming for 40 pounds Actions Drop a Marker Shoot a projectile 5 feet Grasp object from below 3 planes of Thrust Knock a pipe off pegboard Positioning Cameras down and forward In-line with torpedoes and droppers Separate battery pod Compass away from magnetic interference Features Easy access to electronics Watertight enclosure Even and minimal drag Dynamically and statically stable Very configurable Slightly positive buoyancy Convenient carrying by two people Crane hooks Heat mitigation Condensation and leak mitigation External switches 2

What We Need To Know Now Mini Computer Are we going to use one or not? Hydrophone What are your ideas for Circuit Boards? Size and appearance of the hydrophone droppers? Is there a location that you would want to see us place them? 3

Current Design 4

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Frame Sub- Assembly 6

Current Design Circuits and Circuit Rack Sub- Assembly 7

Current Design Torpedoes, Cameras, & Marker Droppers Sub- Assembly 8

Components The slides under “Components” are showing what we know we must mount to the circuit rack inside the circuit tube. Power Supply Board Motherboard and Hard Drive 9

Components Cont’d Sabertooth Motor Controllers (x3) Depth Sensor, Compass, Gyroscope, Accelerometer WSU/Digilent Board 10

Components Cont’d CO2 Canister and Regulator Pneumatic Solenoids and Manifold 11

Connectors 12

Battery Box Box cartridge design with internal sealing Hot swappable No need to open for battery changing or charging Stackable 13

Battery Box 14

Senior Lab Experiment Old vs. New Thrusters Voltage Supplied vs. Force Created Forward and Reverse Operation Analyzing for Statistically Significant Differences between Forward and Reverse Thrust and Old vs. New Thrusters 15

Senior Lab Results Plot With Outliers 16

Senior Lab Results Plot Without Outliers 17

Milestones Project Learning / Research / Background End of September Designing / Prototyping End of November Order & Delivery of Parts Middle of January Construction of Mark 1 Sub Middle of February Mark 1 Design Evaluation End of February Mark 1 Testing End of March Time for Re-Design Middle of April Deliver Re-Design Middle of April Portfolio and Logbooks End of April 18

Expected Expenditures Acrylic Tubing and Sheet Already have 3/8” and ½” sheet purchased Several Electrical Underwater Connectors More Bosch Extruded Stock and Connectors For assembling the frame Plate Aluminum For machining the bulkheads and circuit rack O-Rings For external housings and bulkhead seals New Marker Droppers Also the ball bearings will be re-done Pneumatics System will get upgrades or full re-design Ready Rod (All-Thread) and Assorted Fasteners 19

What We Need To Know Now Mini Computer Are we going to use one or not? Hydrophone What are your ideas for Circuit Boards? Size and appearance of the hydrophone droppers? Is there a location that you would want to see us place them? 20

Questions For You Is there a certain location that you see specific circuits needing to be placed? On the circuit rack for your ease of use Out of our Mechanical Targets: Are there any more that you see us needing to account for? Do you have an accurate file for the Marker Droppers 21

Any Questions For Us? 22