ROVing Otter Fabrication

By S.E.Moore -- Revised July 3, 2005

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The ROVing Otter is a Remotely Operated Vehicle designed by Dr. Steven Moore of the California State University at Monterey Bay.

It is a small submarine normally deployed in the ocean at Point Lobos State Park that can be operated over the internet from a PC anywhere in the world.

It is primarily intended for use by school children in their classrooms. They can control its movement in three dimensions, and view images from its video camera in near real-time.

More information is available at Dr. Moore's web page.

Click on the highlighted items below for pages that describe the making of a ROVing Otter in detail.

A ROV's enclosure consists of an 18" length of 6" PVC pipe closed on both ends by acrylic faceplates. An exterior framework of 3/4" PVC pipe supports the motors, and serves as a protective bumper. Each of the four motors drives a polyureathane propeller. A small compressed air cylinder and regulator mounted on the rear faceplate dynamically adjusts the pressure in the enlcosure to match the external pressure. The battery, electronics, and video camera are mounted on a sled in the enlosure. The ROV is tethered to the "mother ship" by a 300 foot multiconductor cable.