Water Jet Propulsion Unit Hamilton Water Jet Thruster

Water Jet Propulsion Unit Hamilton Water Jet Thruster 3D print model


My 50mm design water jet thruster for bigger rc boats. Great design with big steering angle, low drag for maximum water flow, high angle of attack impeller. With brass inserts witch are inserted very easily using soldering iron. You can choose between normal difusor or steering difusor. Walls are 3mm thick and this makes it very robust design. Easy to print (hard parts with PLA and gaskets with flexible filament). All you need to assemble it is: 2x skateboard bearing (8mm ID, 22mm OD, 7mm thickness), lip seal (same dimension as bearing), 6mm M4 brass thread insert-6x, 7mm M4 brass insert-x3 (for motor mount), 6x M4 bolt, 2x m4 nut, 2x kniping screw, 1x 150mm long shaft 8mm thick with 37mm thread at one end, 1x M8 nut which is inserted in impeller while printing process.

You can check video of my 30mm bigger jet unit in the added link.


Impeller- first calculate time for printing not completed impeller. This is the time you will hit pause button and stop priting complete impeller. In that time you have to insert M8 nut inside (it is tight fit. If its to tight, use soldering iron to heat the nut to press it in easily). When the nut is in, just continue printing.

Bearings and lip seal- just pres them inside (first bearing, then lip seal)

Shaft- needs to be as straight as possible. Any vibration will cause bearings to heat. Its best if its made of inox.

Printing: Infill for all the hard parts: 100% Infill for seals: 15% Supports: only for steering difusor Layer hight: 0.2-0.3mm ( on picture is printed with 0.3mm) Temp: PLA 205C, Flex 230C

If you are interested in finished product you can get it on our official website. We offer much improved jet pumps of size 80mm and large 100mm version. Both offer much more power than this pump. ** Jetx-80V3 demonstration video:** https://youtube.com/shorts/bgK93VX-U5Q?feature=share

JetX-100V2 demonstration video: https://youtu.be/wIYQqkqNang https://youtube.com/shorts/FIrxqD0FED8?feature=share

*JetX-100V2 steering system deomnstration video: * https://youtu.be/hbXR6C-6q_c

*Official website: * https://ma-3d.com/

*Jet thruster store: * https://ma-3d.com/product-category/propulsion-systems/water-thrusters/

Item rating
2 0
moorehousesurg 2022-02-09 20:37:47 UTC
General format of the unit is good. I will trial the unit and scale up by 1.6.Will probably make some changes to the difusor vein profile.
Water Jet Propulsion Unit Hamilton Water Jet Thruster
Royalty Free License 
Water Jet Propulsion Unit Hamilton Water Jet Thruster
Royalty Free License 
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3D Model formats

Format limitations
  • Stereolithography (.stl)10.7 MB
  • OBJ (.obj, .mtl)7.45 MB

3D Model details

  • Publish date2020-08-17
  • Model ID#2562184
  • Ready for 3D Printing