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Mini RC Twin Jet Boat 200

Creation's quality: 4.9/5 (6 votes)
Evaluation of members on the printability, utility, level of detail, etc.

3D model description

Boat full Size with Stator and Nozzle 230x80x50mm
Boat Size without Stator and Nozzle 200x80x50mm
You need a 3D printer with a print-high of >200mm.

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RC controlled Mini Jet Boat 200 Mono
RC controlled Mini Jet Boat 200 Twin
RC controlled Mini Jet Boat 300 Mono
Take this model, if you only need the Water Jet Drive
For beginners, i recommend to start with RC Jet Boat 200 Mono or the Jet Boat 300 Mono



Brushless Motor

Brushed Motor

My RC Controller (example)


Is it waterproof ... YES!

  • Watch the video RC MiniMono Boat - 3D printed Jet Drive UNDERWATER! After that, there was no water in it!
  • If your print of the hull is good, it should be waterproof. But, if you want to be safe, you could still paint it with a thin layer of car clear coat. I tried both variants and it works very well.
  • The drive shaft of the boat is sealed between two plain bearings with a lubricating seal.
  • The cover is sealed with a 2mm cord of foam rubber


  • 20200827 added sticker decoration as svg and pdf
  • 20200630 update coord system of boat_cover.STL
  • 20200611 update esc and motor part list
  • 20200430 upload

Object License - Standard Digital File Store License

  • Remixing Not Allowed
  • Commercial Use Not Allowed
  • Add Credits To Designer When Sharing Links, Photos and Videos of Objects

Show me your makes.

Discover my other jtronics designs on cults3d


3D printing settings

slicer: cura (please take cura, Don't take slic3r!)
Nozzle: 0.4mm
wall: 3 Perimeter
support: only for cover
Optimize Wall Printing Order: Yes
Fill Gabs Between Walls: No
adaptive layers: Yes with Layer: 0.10 to 0.20mm
material: PLA
infill: no (only for cover)
Infill Travel Optimization: Yes

Not to fast! Print the parts with about 30mm/s, to get a good layer connection. (It depends on the quality of your printer)
not to hot, because of dropping nozzle PLA 205*C

  • 3D file format: ZIP
  • Last update: 2020/10/01 at 12:50
  • Publication date: 2020/04/30 at 22:38





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Add a comment


@thomasschmid Yes, that's also possible. I will check it next time. Thank's for the good idea.

I am not 100% sure after looking at the wiring, but why not just use a V-Tail mixer for the differential thrust? They work great on tanks, so could work here similarly well.

  • 1 like

@aqulia_technicus Vielen Dank. Das Twin Jet Model gefällt mir auch sehr gut. Die Lenkung ist zwar mechanisch einfacher, dafür ist die Konfiguration der "differential thrust" Funktion der Fernsteuerung viel schwieriger. Ich finde das Modell ist daher eher etwas für Fortgeschrittene, da es auch viel weniger Platz für die Elektronik, als das Mono Jet Boot bietet.

Thanks you very much. I also like the Twin Jet Model very much. The steering is mechanically easier, but the configuration of the "differential thrust" function of the remote control is much more difficult. I think the model is therefore something for advanced users, since it has much less space for the electronics than the mono jet boot.

Wieder ein sehr schönes Modell, Druck läuft gerade. Prusa Slic3r kommt mit den STL gut zurecht. Die Lenkung ohne Servos finde ich super, das vereinfacht den Bau und man hat zwei Löcher weniger im Rumpf.

Again a very nice model, print is in progress. Slicing works fine with Prusa Slic3r. Differential steering is a nice touch, makes the build easier and its two holes less, that might leak.

  • 1 like

Hi, the 18650 cells are very compact and with a high density of power. We also measured the power consumption of the motors and it was not much. After a full run, the temperature of the batteries are only hand warm. So the batteries are very good for these small boats.

very nice, but motor can use 7,5A! 18650 - max 2A for cheap one... it not safe for battery, unless using hight drain battery as HG2 or VTC6

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