TMRC 3660 V2 Outboard STL pack

🚨 NO REFUNDS – DIGITAL PRODUCT 🚨

All sales are final. No refunds, no exchanges, no cancellations.
This is a digital STL file intended for experienced RC builders.

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TMRC RC Outboard Motor — STL File

Community-Inspired • TMRC-Finalized • Digital Download

This listing is for a digital STL file only.
No physical parts, motors, electronics, or hardware are included.

The TMRC RC Outboard Motor started as a solid foundation shared by a TMRC community member. TMRC then refined, adjusted, and finalized the design to ensure printability, consistency, and real-world RC compatibility.

This release represents what TMRC stands for: community collaboration finished the right way.

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Design Overview

• Designed around a 3548 brushless outrunner motor

• Intended to pair with a TFL lower unit

• Geometry refined for improved printability and assembly

• Optimized for RC boat outboard applications

• Built for builder customization

This file is intended for builders comfortable sourcing electronics and assembling RC drivetrains.

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What You’re Getting

✔ Finalized STL files for the TMRC RC Outboard Motor
✔ A community-inspired design, completed and supported by TMRC
✔ Minor refinements if released for this model

❌ No physical motor, hardware, electronics, or lower unit included

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Required Non-Printable Components (Not Included)

These components are not printable and must be sourced separately:

3660 Brushless Motor (2150KV)
https://amzn.to/3OrRagp

Lower Unit – TFL B54210 H-KIT-E
https://tflnorthamerica.com/product/tfl-b54210-h-kit-e-for-b54210/

4.0 mm Stainless Steel Drive Shaft
https://amzn.to/4q64TGN
Required exposed length: 21.34 mm ± 0.5 mm

Elastic Shaft Coupler (5 mm → 4 mm)
https://a.aliexpress.com/_msaWfy5

Reference Motor Mount Screw (Optional)
https://www.mcmaster.com/91273A349/
Any standard M3 screw of suitable length may be used

youtube Video of assembly -https://youtu.be/vJ56jMa7Hlc?si=cNOe1XT5LX-_ekv-

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Recommended Print Settings (Summary)

Material

• ✅ PETG (recommended)

• ⭐ ABS or ABS-CF (highly recommended for maximum strength)

• ❌ PLA not recommended

Orientation (Critical)

• Print straight up and down, matching how the motor sits in the boat

Motor Stay & Transom Bracket

• 6 walls

• 35% infill

Motor Mid Section

• 4 walls

• 25% infill (Gyroid or Cubic)

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Who This Is For

✔ RC builders with 3D printing experience
✔ Users familiar with brushless motors and outboard setups
✔ Builders looking for a refined, proven design

❌ Not a beginner or plug-and-play solution

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Important Notes

• Digital product only

• No refunds once files are delivered

• For personal use unless otherwise stated

• Final fitment and performance depend on printer calibration, materials, and build setup

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About This Release

This project exists because of the TMRC community. A strong starting design was shared, and TMRC took it the rest of the way — refining, validating, and preparing it for release.

Community ideas. Finished properly.

Stay Tremendous.