In this video I show a Lego Technic gearbox for pneumatic system that toggles between two group of switches. It consists of four identical modules and a shifter. Four Lego Technic Power Functions Servo Motors toggle the Pneumatic switches. One M-Motor shifts between the two groups.\r
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Music:\r
Platinum Butterfly (feat. Snowflake, Innabar) – Synergistic Effects, new, CC-BY 3.0\r
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