FPV wings and fixed-wing aircraft represent the fastest-growing segment of the hobby. Unlike quadcopters which fight physics to stay airborne, wings glide efficiently, covering vast distances on minimal battery power. 3D printing is revolutionizing the DIY fixed-wing scene by enabling custom motor mounts, servo trays, control horns, camera pods, and even full fuselages designed and printed at home.
Why 3D Print FPV Wing Parts?
Commercial FPV wing kits are excellent, but they are designed for general use. A 3D printed motor mount can be angled to your exact thrust line preference. A 3D printed camera pod can fit your specific FPV camera dimensions perfectly. And when you crash (you will), you can reprint a replacement part in hours instead of waiting weeks for shipping. For scratch-built foam wings, 3D printed parts are practically essential.
Essential 3D Printed Wing Components
Motor Mounts
The motor mount is the most critical 3D printed part on any FPV wing. It must withstand thrust forces up to several kilograms, survive belly landings, and maintain precise alignment. Print motor mounts in PETG or ABS — never PLA, which softens at the temperatures reached by a warm motor. Design with a 3-5 degree down-thrust angle to compensate for the pitching moment under power. Use at least 6 perimeters and 40% gyroid infill for strength.
Control Horns and Pushrods
Control horns connect your servos to the elevon surfaces. 3D printed horns are lighter than metal and can be designed with multiple mounting holes for mechanical rate adjustment. Print in PETG with 100% infill — these parts experience constant cyclic loading. For pushrods, 3D printed connectors that accept standard 1.5-2mm music wire combine the precision of metal rods with the light weight of printed connectors.
Camera Pods and FPV Mounts
A streamlined camera pod reduces drag and protects your expensive FPV camera. Design the pod with a 19mm or 20mm camera mount integrated into the nose section. The pod should blend smoothly into the wing’s leading edge for aerodynamic efficiency. Print in PLA+ for rigidity (the pod is not near heat sources) with a minimum of 3 perimeters. Consider a two-part design: a rigid PLA+ structure with a TPU insert that isolates the camera from vibrations.
Electronics Trays and Bays
A well-designed electronics tray keeps your flight controller, VTX, receiver, and GPS module organized and protected. Unlike quads where components stack vertically, wings spread electronics across the fuselage. Design a tray that holds each component in its own compartment with cable routing channels. Use standoffs with vibration-dampening gummies for the flight controller mount.
Wing Joiners and Spars
For multi-piece wings that break down for transport, 3D printed joiners connect the wing sections securely. These must handle significant bending loads during high-G maneuvers. Print in PETG or ABS with maximum perimeters and a carbon fiber tube insert for the primary load path. The 3D printed part provides the alignment and retention; the carbon tube handles the structural loads.
Full 3D Printed Wings: Eclipsing Foam
Entirely 3D printed FPV wings using LW-PLA (Lightweight PLA — a foaming filament that expands during printing) have become increasingly practical. Designs like the Eclipson series and 3D Print Lab’s models produce fully printable airframes that rival foam wings in weight and exceed them in aerodynamic precision. LW-PLA prints at roughly 50% the density of standard PLA thanks to its active foaming agent, activated by printing at 230-250°C with 50-60% flow rate.
Design Guidelines for FPV Wing Parts
- Think about airflow: Every printed part on the exterior of the wing creates drag. Fillet corners, smooth transitions, and keep parts as low-profile as possible.
- Crash survivability: Design motor mounts to break before the wing does. A $2 reprint is better than a $80 wing replacement.
- Weight discipline: Wings are more weight-sensitive than quads. Every 10 grams behind the CG requires additional nose weight to balance, doubling the penalty.
- Use metal fasteners for primary loads: M3 heat-set inserts in printed parts provide reliable threaded connections that will not strip under vibration.
Conclusion
3D printing and FPV wings are a perfect match. Whether you are adding a custom camera pod to a commercial kit or printing an entire airframe from LW-PLA, the ability to design, print, and fly within days transforms how you approach fixed-wing FPV. Start with motor mounts and camera pods on your existing wing, and you will quickly find more components to customize.