Transom Adapter Bracket TWIN/QUAD

Freeman Transom Adapter Bracket — STL File

3548 Outboard Motor Compatibility •  / Twin / Quad Configurations

Digital STL File • TMRC Original Design • Instant Download

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What this is

The Freeman Transom Adapter Bracket enables TMRC’s 3548 outboard motor system to be installed on existing Freeman hulls originally designed for flat transom motor mounts.

This adapter bridges the original transom geometry to support single, twin, or quad outboard configurations without requiring hull redesign or reprinting.

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What it solves

Legacy Freeman hulls were not designed for the mounting geometry or torque loads of modern 3548 outboards. This adapter:

• Corrects outboard mounting alignment

• Provides proper transom spacing for modern motor geometry

• Distributes load across reinforced mounting surfaces

• Supports higher torque applications, including quad motor setups

• Eliminates the need to modify or reprint the hull

Print it. Install it. Scale your build.

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Compatibility

✔ Freeman hulls originally designed for flat transom motor mounts
✔ TMRC 3548 outboard motor assemblies

⚠️ Not designed for non-Freeman hulls or custom transoms unless modified by the user.

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Print Recommendations (Required)

• Material: PETG, ASA, or ABS-CF (recommended)

• Layer Height: 0.20 mm (required)

• Walls: 4–6 perimeters

• Infill: 30% (Gyroid or Cubic recommended)

• Orientation: Print flat on the transom face

• Supports: Not required

This part was designed and tested specifically at 0.20 mm layer height and 30% infill for optimal strength, dimensional accuracy, and vibration resistance.

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What’s Included

• Freeman Transom Adapter Bracket STL

• Print-ready geometry optimized for strength

• Designed for direct integration with existing Freeman hull files

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Important Notes

• Digital product only — no physical parts included

• Does not include motors, hardware, or hull files

• Quad motor configurations increase stress; proper print settings and quality control are critical

• Minor sanding or fitment adjustments may be required depending on printer tolerances

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STL File Disclaimer

This product is a digital STL file intended for hobbyist and educational use.

By purchasing and using this file, you acknowledge:

• You are responsible for print quality, material choice, assembly, and final use

• TMRC is not responsible for print failures, improper installation, or component damage

• High-power and multi-motor configurations involve inherent risk and require appropriate testing

• Always test at low power before full operation

This file is provided as-is, without warranties of any kind, expressed or implied.

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Brand Disclaimer

This is an independent TMRC design.
Not affiliated with, endorsed by, or associated with Freeman Boatworks or any other manufacturer.