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<br>\r<br>Music:\r<br>Platinum Butterfly (feat. Snowflake, Innabar) – Synergistic Effects, new, CC-BY 3.0\r<br>\r<br>\r<br>More:\r<br>Twitter \r<br>Facebook \r<br>Flickr \r<br>Web (coming soon)\r<br>\r<br>LEGO® is a trademark of the LEGO Group of companies.
