Engineering Club Workshop 4.1

Date: Thursday, Sep 25, 2008
Time: 7:00 pm - 9:00 pm
Place: Room 202 (Mr. Hoffman's Room)
Attended By: Lani Older, Wyatt Albert, Tim Fillebrown, Doug Kehrly, Bruce Kehrly, Mrs. Kehrly, Mr. Snyder
General Activities
  • Get-acquainted session to find out about career plans, hobbies, past experience.
Electrical Engineering Activities
  • Introduction to simple DC circuits
  • Schematic symbols for battery, lamp, motor, switch, transistor
  • Introduction to DC motor control, Pulse Width Modulation (PWM)
  • Explanation of how Mindstorms RCX uses PWM to provide 8 power levels
  • Introduction to oscilloscope, voltage scale, time scale, triggering
  • Inspection of RCX output at various power levels using oscilloscope
  • Discussion of plans to build motor control units using transistors to allow RCX to control larger motors
Mechanical Engineering Activities
  • Inspection of offroad robot chassis and motors
  • Addition of rubber spacers to align and stabilize large LEGO plate mounted to offroad robot chassis
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