A 3D‑printed windshield washer fluid funnel specially designed for Tesla models (including Model 3, Y, S, and X), featuring a honeycomb lattice structure and precise diameter matching, effectively addresses the common pain points of “narrow openings leading to awkward fills and frequent spills” when topping off windshield washer fluid at the factory. The funnel boasts a bright blue exterior, with an upper opening that perfectly aligns with Tesla’s windshield washer fluid fill port (inner diameter approximately 3–4 cm) and a tapered lower opening that fits most standard windshield washer fluid bottle nozzles (diameter roughly 1.5–2 cm). The central cavity is designed with a conical flow‑guiding geometry, ensuring smooth, spill‑free liquid delivery.

The honeycomb lattice structure not only reduces weight—making the funnel lightweight and easy to handle—but also enhances structural integrity, preventing deformation under pressure. At the same time, the open air channels promote efficient airflow, helping to equalize internal and external air pressure during filling and delivering a more consistent, stable liquid flow. The funnel’s edges are finished with smooth, rounded chamfers to prevent scratches on vehicle paint or user hands. With its sleek, minimalist design, this funnel is perfectly suited for everyday maintenance tasks and self‑service windshield washer fluid refills for Tesla owners.

Key Design Features

• Precise Diameter Matching: The upper opening precisely matches Tesla’s windshield washer fluid fill port (inner diameter ≈ 3–4 cm), while the lower opening is tailored to fit common windshield washer fluid bottle nozzles (diameter ≈ 1.5–2 cm), ensuring a snug fit and eliminating spills during filling.
• Honeycomb Lattice Structure: Combining lightweight construction with high strength, the funnel’s conical cavity and honeycomb design help balance air pressure and accelerate fluid flow, delivering a steady, spill‑free pour.
• User‑Friendly Details: Smooth, rounded edges protect both vehicle paint and user hands from scratches; the compact overall dimensions—approximately 8 cm long, 6 cm wide, and 5 cm tall—make it comfortable to hold and easy to store.
• Customization Options: The 3D‑printed model can be customized in terms of color and nozzle size, making it compatible with other vehicle models (such as BYD, XPeng, and more) or different types of windshield washer fluid bottles.

Technical Specifications

• Compatible Vehicles: All Tesla models (Model 3, Y, S, X) — customizable to fit additional vehicle makes and models
• Compatible Containers: Standard windshield washer fluid bottles (with nozzle diameters ranging from 1.5 to 2 cm)
• Recommended Materials: PLA (eco‑friendly, easy to print, available in a wide range of colors); PETG (temperature‑resistant and abrasion‑proof, ideal for outdoor use or car wash applications)
• Printing Recommendations: Use a 0.2 mm nozzle, set the infill density to 20–30% (balancing strength with lightweight design), ensure honeycomb wall thickness is ≥ 1 mm to prevent breakage, and reinforce the nozzle area with higher infill (30–40%) for added support.
• Dimensional Reference: Upper opening ≈ 3.5 cm, lower opening ≈ 1.8 cm, total height ≈ 5 cm, base diameter ≈ 6 cm

Application Scenarios

▸ Self‑Service Refills for Tesla Owners: With its precise fit to the fill port, this funnel eliminates spills and makes topping off windshield washer fluid quick and hassle‑free.

▸ Car Washes & Repair Shops: Offer bulk customization to provide convenient refill services for Tesla owners, boosting operational efficiency.

▸ Outdoor Emergency Use: Compact and portable, this funnel is perfect for emergency windshield washer fluid refills during road trips or camping adventures, helping to avoid spills that could pollute the environment.