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44 Masterpiece 2 • The Learning Brick Sorter
a touch sensor added later on.This combination is what allows the Brick Sorter to track
the position of the Arm sub-assembly.The small pump, visible on the left of the model,
provides airflow for the pneumatic pistons that operate the Arm sub-assembly.
Body Step 0a
The TECHNIC Brick x4 with an open center
is used to hold the motor. If you don’t
have it, you can replace it with
standard TECHNIC bricks. This
alternate sub-assembly is
shown in Body Step 0b.
Body Step 0b
This is the alternate sub-
assembly for Body Step 0a.
Body Step 1
