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Sub components used : https://www.amazon.com/dp/product/B07...

This will be the last sub build for a little while, while I return to some flying stuff projects. It's something I've wanted to do since I first got these Aquanauts sets in 1996. Both subs are built out of real LEGO from the original sets. The only glue used was to attach the drive motors, and I used hotmelt glue for that, so that I could easily return the sets to their spots in my collection. Both use the internals from a 3channel sub toy I found on Amazon. I removed the electronics, potted everything in hotmelt glue to waterproof, then extended motor leads as necessary to get things in the right positions. One big challenge with this was getting consistent neutral buoyancy. Every connection between bricks trapped tiny pockets of air, and getting repeatable flooding was challenging, often times I would have to disassemble and reassemble parts of the set under water to get the balance correct. This made for somewhat arduous filming, but the results were what I was always hoping for :)

As with all my builds, this is strictly for fun. I do not intend to sell any sort of kit based on this project, although I will be glad to answer questions about the build, and help anyone who is interested create their own. Do not upload my content as your own, and please provide proper attribution if you are sharing it. Build and fly at your own risk and in accordance with your local regulations. Fly smart, fly safe