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132 Masterpiece 3 • The LEGO Turning Machine
Erase Switch Step 7
The #4 axle is the arm that will
push the liftarms. Insert the arm
from the right and connect it to
the universal joint.
The Write Switch
The Write sub-assembly is similar in construction (but obviously not in function) to the
Erase Switch sub-assembly.The function of the Write sub-assembly is to push the liftarms
on the Tape sub-assembly upwards.The upward movement of the liftarm equates to the
process of writing a symbol in a cell on the Tape sub-assembly.
Write Switch Step 0
