Window Duct Adapter 125mm / 5-Inch Duct Version - STL File for 3D Printing | 3D打印文件

Need to vent air through a cracked or tilted window? This 3D-printable U-shaped window adapter is designed specifically for 125mm (5-inch) ducting and offers serious airflow capacity in a space-saving form factor. Ideal for indoor growers, makers, apartment dwellers, and workshop users who need a clean, easy, and modular solution.
✅ What’s Included:

STL file for U-shaped window vent body (optimized for 125mm ducts)

STL file for 125mm duct adapter ring

15mm overlap interlock with 0.3mm clearance for secure fit

Designed for two M3 screws (or glue-in) for fastening the duct ring

Prints support-free on FDM printers—designed for strength and ease of use

🛠️ Print Info (Solid Print Example):
Part Filament (Solid) Print Time (Bambu X1C)
U-shaped duct ~600g ~18 hours
Duct adapter ~230g ~8 hours
Total ~830g ~26 hours

You can adjust wall count and infill to suit your needs—this model is rock-solid when printed thick, but lighter-duty applications can reduce material/time significantly.

🧰 Use Cases:

Grow Tent Ventilation – exhaust fans or carbon filters venting outdoors

Laser Cutter Fume Extraction – perfect fit for home laser enclosures

Portable Air Conditioners – create a functional exhaust path in tilt-open windows

Tumble Dryer Exhaust – great solution for venting in small apartments

Workshop Air Management – redirect fumes or dust from enclosed CNC, soldering, or resin printing setups

⚙️ Compatibility:

Designed specifically for 125mm / 5-inch ducts

Compatible with flexible ducting (aluminum, vinyl, plastic)

Adapter ring fits into U-duct with friction lock + 2x M3 screw fastening

PETG, ABS, ASA recommended for durability and heat resistance

🔑 Features:

Modular design – swap or customize the duct ring for your setup

No supports needed – optimized with max 45° overhangs

Slim U-shape profile – fits in narrow tilt-open windows

Print-tuned interlock – secure 15mm overlap with 0.3mm fit

Easy to install & remove – renter and DIY-friendly

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📦 Notes:

This is a digital product – STL files only, no physical item included.

Designed for 3D printers with a minimum ~220mm build area (prints diagonally or in two parts if needed).

Hardware not included—requires 2x M3 screws or can be glued if preferred.

👀 Coming Soon:

Smaller versions optimized for 100mm and 80mm ducts with equivalent airflow but reduced print time and material usage—perfect for narrower window openings.

Ready to vent smart, without ugly hacks or duct tape nightmares? Download the STL, print your own high-performance adapter, and get clean air flowing today.

→ Print. Vent. Relax.

🖨️ Recommended Print Settings (For Most FDM Printers)

These settings are aimed at balancing strength, dimensional accuracy, and print success—particularly for this large-format, support-free duct adapter design.
🔧 General Settings:
Setting Recommendation
Nozzle Size 0.4mm (standard) – larger nozzles like 0.6mm can reduce print time for heavy-duty builds
Layer Height 0.2mm (standard), or 0.28mm for faster prints
Wall Count 6+ (≥2.4mm thickness), or more for extra rigidity
Top/Bottom Layers 4–6 depending on infill
Infill 15–30% Grid or Gyroid – adjust for intended use
Material PETG or ABS preferred for strength and heat resistance (PLA works but less durable)
Print Cooling On for PETG/PLA – Off or minimal for ABS
Bed Adhesion Brim or skirt recommended – large flat part area
Supports ❌ None required – part is designed to be fully support-free
Build Volume Needed ~220x220mm minimum (or diagonal placement)
🧱 Filament Usage & Print Time Estimates (125mm Version):
Part Filament (Solid Print) Time Estimate
U-Shaped Duct ~600g ~16–20 hours
Duct Adapter ~230g ~7–9 hours
Total ~830g ~23–29 hours total

📝 Users can reduce wall count, use lower infill, or scale down slightly if not used for high-pressure airflow.

💡 Pro Tips for Best Results:

Tune bridging settings: Keep bridge speed low (20–30mm/s) and enable "bridge flow rate" settings for cleaner undersides.

Z-seam alignment: Set to "random" or hide at corners if visible lines bother you.

Filament color: Light colors show less blemish if bridging slightly sags.

Dry your filament: Especially for PETG/ABS—moist filament affects layer adhesion and bridging.