Not sure what an "idiot engine" is, but the LEGO motors (RCX and Power Functions) work fine underwater. Been doing things like this for many years now. There is really no issue with their operation. The thing that kills them is corrosion. Just be sure they are dried out after each use, and they k...
Not sure what an "idiot engine" is, but the LEGO motors (RCX and Power Functions) work fine underwater. Been doing things like this for many years now. There is really no issue with their operation. The thing that kills them is corrosion. Just be sure they are dried out after each use, and they k...