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30mm Spinner for 2.3mm shaft

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3D model description

Several small electric model airplanes uses direct drive motors with a 2.3mm shaft, remnants for the Mabushi 370 brushed motor resold as the then popular Graupner SPEED400 motor.
But finding spinners for that shaft size is getting ever more difficult, these days.
This is a 30mm spinner alternative for 2.3mm motor shaft and is a companion to the Mooner electric racer when equipped with a low cost BR2445 motor and a 30mm precision spinner is not handy.

The Mooner is also available on Cults3D here: https://cults3d.com/en/3d-model/gadget/mooner-900mm-entry-level-r-c-electric-sp400-pylon-racer

In order to complete this spinner you will need:
- PLA
- Bullet Prop Adapter 2.3mm
https://www.banggood.com/1PC-2-6mm-Brushless-Motor-Propeller-Clip-Aluminum-Alloy-Adapter-Bullet-Paddle-Clamp-for-RC-Models-p-1335137.html
- M4 nut
- Small prop like a 5x5 or 4.75x4.75.
https://www.banggood.com/Gemfan-GF-4075-5050-7050-Electric-Propeller-1-Pair-For-RC-Model-p-977958.html

This spinner relies on the collet found on the Bullet Prop adapter to clamp the spinner and prop securely to the motor shaft.
Screw the M4 nut to the threaded end of the collet to secure the prop and spinner.

You might want to balance the prop & spinner before flying. Be sure to check that your motor shaft is really 2.3mm. Other popular shat sizes are 2mm, 3mm and 3.2mm but will not work on the 2.3mm collet.


3D printing settings

No support required.
STLs and factory file are provided.

3D printer file information

  • 3D design format: STL and ZIP Folder details Close
    • Base2.3-v09.stl
    • Cone2.3-v09.stl
    • PSpinner30x2.3mm.zip

    Learn more about the formats

  • Last update: 2020-12-29 at 22:42
  • Publication date: 2020-12-23 at 23:32

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