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PneumADDic II • Masterpiece 4 211
The Motorized Switches

The Dual Motor Switch sub-assembly provides one motorized switch, but PneumADDic
II needs two more.The following building instructions describe how to make
PneumADDic II’s Motorized Switch sub-assemblies.You will need to build two of these.
The Motorized Switch sub-assemblies require a clutch gear (the white gear added in
Motorized Switch Step 10), which prevents the motor from seizing, or causing undue
stress to the switch or the RCX by allowing the axle of the motor to turn when the
switch hits its limit.

Motorized Switch Step 0 Motorized Switch Step 1