Uploaded September 2018 | Updated September 2026, 2 days ago

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I Built this with LEGO MINDSTORMS, set 31313 and a Technic hovercraft 42076.

Building instructions : antonsmindstorms.com/2018/10/24/c4tfish-the-mindstorms-fish

Then try programming it yourself. Just post any questions you have about the programming below and I will help you out within a day!