Team Mejor

1
Team Mejor The Spyder

• Chassis Design
• Perry Smith
• Dave Millar -11/2/04

2
Material

• Polymerized Methyl Methacrylate (Plexiglas)
• Soft acrylic glass
• Machineable
• Clear
• Does not splinter
• Source
• Scrap from hockey rink
• Free
• Assigning a price of 5.00

3
Manufacturing

• Band saw used to cut out shape
• 18x 15 rectangle
• Sanded faces
• 0.475 thick
• Drill press to drill holes for attachments

4
Attaching Components

• Threaded fasteners hold up electronics
• Stand-offs
• Aluminum brackets for structural elements
• Motors
• Sensor arm
• Spool System

5
Component Layout

• Two aluminum brackets support motor
• Motors support wheel
• Caster in back
• Battery centered on board under spool system
• Compass away from other electronics
• Other electronics in accessible weatherproof box

6
Component Layout
7
Chassis Design
8
Chassis Issues

• Waterproofing motors mounted on bottom
• Leveling chassis by shimming caster
• Selecting threaded fasteners