Jet propulsion pump
thingiverse
Latest version available on cults3d.com with water cooling connector, cooling sleeve for motor, and steering nozzle. https://cults3d.com/en/various/water-jet-pump Cooling sleeve fits motors with 40mm diameter. Two Orings measuring 40X3mm are required for a watertight fit over the motorhousing. The motor utilized is a type 4074.
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