Transcript PowerPoint 1: SeaPerch Overview and Design Challenge

SeaPerch
Design Challenge and
Construction Overview
Introduction
• The SeaPerch is a simple ROV
(remotely operated vehicle) made
from PVC pipe, motors, and floats.
• You will utilize the design process
to create an ROV that meets this
year’s specific challenge(s).
• You will work in teams to
construct and test a working ROV.
The Design Challenge
• You will work in pairs for this challenge.
• The ROV is expected to:
– Be remotely controlled
– Be connected to a tether
– Submerge in water
– Move left and right
– Rise to the surface
• Each student is responsible for creating his or
her own design sketches.
The Design Challenge
Each student is expected to:
1. Create 4 different sketches of your ideas for a
structural system (the PVC pipe).
2. Evaluate your ideas with your partner.
3. Select a final design idea (standard or
modified structure).
4. Draw your final idea for the structure.
5. Give reasons for your final choice (in
writing).
Design Constraints
Each group will have the following materials:
• 5’ – 8’ of ½” PVC pipe
• PVC connectors
• 3 motors with props,
holders, and containers
• 2 floats
• Tether wire
• Netting with tie wraps
• Screws
• 1 – 12 volt battery
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1 circuit board
1 control box
CAT5 wire
Wire
Solder
Electrical Tape
Rubber Tape
Tools
Design Constraints (2)
• The frame is made of ½” PVC pipe
• The frame must hold the motors, floats, and
weights (as needed)
• The motors are positioned on the frame
• The motors are expected to submerge the ROV,
move it left and right, and raise it to the surface
• The ROV is powered by a 12-volt battery and
tethered to the control box, which allows the
student to maneuver the ROV.
Tools
In order to build your SeaPerch ROV, you will
use a variety of tools:
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Safety glasses
Saw
Screwdriver
Drill
Drill bits
Vise/clamp
Pliers
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Ruler
Scissors
Hot plate
Soldering iron
Construction Overview
• There are four different steps to the
construction of your ROV:
– Structural System
– Mechanical System
– Electrical System
– Integration/Quality
Control/Testing
Structural System
• Design the frame to be
made out of ½” PVC pipe.
• The frame must hold
motors, floats, netting, and
weights as needed.
• Students may use a
standard structure (see
picture at left) or develop a
modified structure of their
own.
Mechanical System
• Identify the position and
direction for the three
motors.
• The motors must
submerge and raise the
ROV, and move it left
and right.
• The motors must be
sealed tightly from the
water, using wax.