Tremendous Marine RC
TMRC Yammy 250 V3 Outboard — STL Pack
TMRC Yammy 250 V3 Outboard — STL Pack
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DISCLAIMER
This is a digital STL file. No physical product will be shipped.
All sales are final. Due to the nature of digital downloads, no refunds or exchanges are offered.
Files are for personal use only. Redistribution, resale, or sharing of the files or printed parts is prohibited.
This is an original Tremendous Marine RC design and is not affiliated with, endorsed by, or associated with any real-world boat manufacturer. TMRC is not affiliated with Yamaha Motor Corporation.
TMRC YAMMY 250 V3 OUTBOARD — STL PACK
Direct bolt-on upgrade for the TMRC 3660 V3 platform.
The next evolution of the TMRC outboard lineup. The Yammy 250 V3 is engineered as a direct bolt-on upgrade for the TMRC 3660 V3 platform and designed specifically around the proven TFL lower unit setup.
This version features a redesigned mounting structure for improved rigidity, cleaner fitment, and better long-term durability under high-power setups. Built for serious RC offshore applications.
Specifications
- Motor Compatibility: 3660 brushless water-cooled setup
- Lower Unit Compatibility: TFL lower unit
- Drive Shaft: 4 mm stainless — length TBD
- Lower Unit Mounting Hardware: 25 mm M2 screws
- Steering / Swivel Bolt: M3 × 80 mm
- Platform: Direct bolt-on to existing TMRC V2 system
What's Included
- Yammy 250 V3 cowling
- Updated V3 midsection
- Swivel bracket components
- Mounting hardware locations integrated into the design
- Trim-compatible architecture
- Direct bolt-on compatibility with the TMRC 3660 V2 system
- STL files for 3D printing
Recommended Print Settings
- Material: PETG / ASA / ABS
- Walls: 5
- Infill: 5% (3D Honeycomb)
- Layer Height: 0.2–0.28 mm
- Hardware: Heat inserts strongly recommended
- Increase infill around high-stress mounting areas on aggressive setups
Filament
Printed in SUNLU PETG. Get it here (affiliate link): https://store.sunlu.com?sca_ref=11554757.OetPZf1JlD&utm_source=sunluaffiliate&utm_medium=sunluaffiliate&utm_campaign=sunluaffiliate
Required Non-Printable Components (Not Included)
These parts 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
Length TBD - 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
Assembly Video
Watch the TMRC V3 outboard assembly walkthrough on Instagram
Designed For
- High-performance RC center consoles
- Catamarans
- Offshore race builds
- Twin, triple, quad, and quint outboard setups
- Scale replica projects
Digital Download Only
No hardware, motors, electronics, shafts, couplers, or drive components included.
TMRC
Handcrafted performance.
Built by enthusiasts, for enthusiasts.
Stay Tremendous.
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