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Stair-Climber • Masterpeice 1 35

Operating the Stair-Climber

Operating the Stair-Climber is relatively straightforward. Pushing the buttons on the bat-
tery pack should drive all four wheels forward or backward in unison.
I suggest that you experiment and watch how the model drives, steps, and climbs over
various obstacles.A pile of LEGO bricks is a perfect, re-configurable obstacle course.Try
making stairs of various inclines using whatever is convenient. LEGO bricks work well
for this, but books and scrap lumber are good alternatives as well.

NOTE

The CD-ROM that accompanies this book contains video of the Stair-Climber in
action traversing various obstacles.

Using an RCX instead of a Battery Pack

Should you opt to use an RCX instead of the LEGO battery pack, your model might
take the form of the Stair-Climber shown in Figure 1.7.

Figure 1.7 Stair-Climber Built with an RCX instead of a Battery Box