Page 291 - LEGO MINDSTORMS - Robotics Invention System-2 Projects

Robot 9 • The SpinnerBot

Final Step 0

Begin by assembling the transmission. Slide
the half-length bushing onto the axle, leaving
one-and-a-half studs of axle exposed on the
near side of the bushing.

Final Step 1
Final Step 2

As you slide the
Place the 12t bevel gear on differential housing
the short stub inside the onto the axle, slip the
barrel of the differential. 12t gear onto the end
of the axle. This will
hold the loose 12t gear
from the previous step in place.
The new 12t gear should just
barely cover the end of the axle.
Final Step 3

Add the second axle, sliding the 12t gear over
the end as it enters the differential. Continue
sliding the axle through the gear until a full
stud’s worth of the end of the axle is exposed
inside the differential. It should just brush the
axle tip on the opposite side of the differential.

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