Water jet boat

thingiverse

I got a water jet from eBay that I'm fitting into my boat. The deck needs more support, so I drilled holes to fit the water cooling pipes and mount the screws for the water jet. It's still a bit of a wet ride, but I printed lids using TPU flexible filament hoping it would make a seal. I made a time-lapse video of the print: https://youtu.be/566jpPi0YbE To prevent splashes from getting on the deck, I added spray rails. Here are some test videos: https://youtu.be/W_sI2ammbOo (pool testing), https://youtu.be/8OqoHRGLBb4 (river test). I also upgraded to a 3s lighter battery, which is less weight and more speed: https://youtu.be/jjtF9ZksYhc Here are the parts I used: * Jet pump: https://www.ebay.co.uk/itm/2Pcs-16mm-Spray-Water-Thruster-for-RC-Boat-Jet-Pump-DIY-Toy-Ship-Accessories/163700859579?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649 * Motor: https://www.ebay.co.uk/itm/Surpass-2040-4480KV-4-Pole-Non-inductive-Brushless-Motor-RC-Accessory-RC-Car/401789389616?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649 * Motor water cooling jacket: https://www.ebay.co.uk/itm/Original-Hobbywing-SEAKING-Water-Cooling-Jacket-Water-Cooled-Tube-Cover/253151078026?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649 * Electronic speed controller: https://www.ebay.co.uk/itm/HP-SimonK-30A-ESC-Brushless-Speed-Controller-BEC-2A-for-Quadcopter-F450-X52-Q5I7/123823792421?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649 * Motor shaft to jet pump joint: https://www.ebay.co.uk/itm/2-2-3-3-3-17-4-5-6mm-Motor-Drive-Bass-Shaft-Coupling-Coupler-Connector-Sleeve/192182196356?ssPageName=STRK%3AMEBIDX%3AIT&var=492099833640&_trksid=p2057872.m2749.l2649 You'll need a receiver, pipe for cooling, 9g servo, and some wire to connect the steering to the servo.