LegoEngineering.com Bulldozer -RCX 6-1 Suggested Time ──────────── Challenge ──────────── Age ──────────── Topics ──────────── Subjects ──────────── Programming Themes ──────────── Related Math & Scineces Concepts ──────────── Materials ──────────── Building Instructions 90 minutes ───────────────────────────────────────── In this activity, design and construct an RCX sturdy car and program it to be controlled by touch sensors that can push “dirt” ─────────────────────────────────────── 8-13 ───────────────────────────────────────── Touch Sensors ─────────────────────────────────────── Engineering &Technology ─────────────────────────────────────── Motor Forward, Wait For Touch, Task Split, & Jumps/Lands ───────────────────────────────────────── • Gears • Wheels and Axles • Acceleration • Velocity ───────────────────────────────────────── • RCX Car • 2 Touch Sensors • Dirt Reprsented by LEGO Pieces, Cotton Balls, etc. ───────────────────────────────────────── 1. Build a bulldozer by attaching a plow to the front of the RCX with skid plates. Bulldozer - RCX
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LegoEngineering.com Bulldozer -RCX
6-1
Suggested Time
────────────
Challenge
────────────
Age
────────────
Topics
────────────
Subjects
────────────
Programming
Themes
────────────
Related Math &
Scineces Concepts
────────────
Materials
────────────
Building
Instructions
90 minutes
─────────────────────────────────────────
In this activity, design and construct an RCX sturdy car and program it to
be controlled by touch sensors that can push “dirt”
───────────────────────────────────────
8-13
─────────────────────────────────────────
Touch Sensors
───────────────────────────────────────
Engineering &Technology
───────────────────────────────────────
Motor Forward, Wait For Touch, Task Split, & Jumps/Lands
─────────────────────────────────────────
• Gears
• Wheels and Axles
• Acceleration
• Velocity
─────────────────────────────────────────
• RCX Car
• 2 Touch Sensors
• Dirt Reprsented by LEGO Pieces, Cotton Balls, etc.
─────────────────────────────────────────
1. Build a bulldozer by attaching a plow to the front of the RCX with
skid plates.
Bulldozer - RCX
LegoEngineering.com Bulldozer -RCX
6-2
────────────
Programming
Instructions
2. Wire the motors to the outputs of the RCX.
3. Make a touch sensor controller, and wire the inputs to the RCX.
• Building Hints
o 2 motors are essential in order to allow the bulldozer to turn.
o Turning is easier to accomplish if a free spinning wheel or skid
plates are used.
───────────────────────────────────────── Choose whether to use ROBOLAB or the LEGO NXT Software to program (Note: You
cannot use the LEGO NXT Software if you chose to build your amusement park ride
using the RCX).
LegoEngineering.com Bulldozer -RCX
6-3
────────────
Building and
Programming
References
────────────
Related Activities
────────────
Knowledge Base
• Here is an example ROBOLAB INVENTOR 4 program:
• Click here to Download the example Robolab software: