M-Jet 30 Jet Pump - 3D Print Files

3D printable files for M-Jet 30 by M-Jet Development, now also available here on RCPrinter.

Join the official M-Jet facebook group! https://www.facebook.com/groups/623045356071128

Full documentation, manual, part list, drawings: https://drive.google.com/drive/folders/1JcEGcyh6E7lrhXk4kT1SKNdzvIaI_VNe?usp=drive_link

Hardware and electronics kit by RCPrinter: https://rcprinter.com/products/m-jet-30-pump-build-kits

M-Jet 30 includes:

STL files for all parts of the assembly, designed to be FDM 3D printed, mostly with no supports.

STEP file for most of the assembly except for the pump (the pump is only included in the STL format).

You can 3D print it and assemble it with help of the manual, link above. You need to buy all electronics, screws and other necessary parts yourself - part list is in the manual, too.

The M-Jet 30 is a 3D printable jet pump for RC jetboats. It is a good match for hulls of size 35-55cm. The newest version of the M-Jet 30 introduces all key M-Jet features:

• 2-stage configuration
• Single blade impeller
• 4-path nozzle with a quick-swap vertical trim
• Rear installation

The M-Jet 30 is compatible with the following hulls:

Ragnarok: https://www.cgtrader.com/free-3d-print-models/hobby-diy/other/ragnarok-3d-printable-rc-jetsprint-boat

Valkyrie: https://www.cgtrader.com/free-3d-print-models/hobby-diy/other/valkyrie-3d-printable-rc-jetski

The M-Jet 30 has the same internal pump geometry as the Supersprint and utilizes most of the same hardware and electronics.

You don't need the M-Jet 30 to build the Supersprint, and you don't need the Supersprint to build the M-Jet 30. These are separate systems.

Performance:The M-Jet 30 achieves 5.3kg static thrust at 18.5m/s exit velocity, consuming 1315W from battery. This data comes from a static thrust test.

Update log

Update 05.09.2024: Brand new M-Jet 30 has been released, introducing all important M-Jet features developed over time. The new M-Jet 30 replaces the original M-Jet 30. The original M-Jet 30 stays available as old_M-Jet_30.

Fix 11.09.2024: Wrong dimension of the steering shaft (112mm) has been corrected to 110mm in the manual.

Fix 05.10.2024: Based on a report, KV selection for 28xx motors was designed too high and could lead to damaging the motor. Recommended KV for 28xx motors was reduced in the manual. No other changes.

Update 16.11.2024: A motor mount with ESC holder for Bash Jet or other boats where this configuration is useful, was added to the mods folder. Thanks Bart for creating and sharing the design!

Update 30.11.2024: A new version of the ESC mount for a Hobbywing 150A forthe Valkyrie by Bart was added into the mods folder, thank you for your work.

Update 12.05.2025: A new TPU shaft seal design by Fabien was added into the Mods folder. This can be used instead of the regular oil seal. Full watertight seal was achieved in a test run.