3D Printed Camera Mounts and Antenna Holders for FPV Drones
Camera mounts and antenna holders are the most frequently broken parts on an FPV drone. A hard crash can snap an injection-molded camera cage or tear an SMA connector right off a VTX. Replacing these with 3D-printed alternatives saves money, adds durability, and lets you customize your setup to match your exact components. With a roll of TPU and a well-tuned printer, you can produce mounts that outperform their commercial counterparts.
Why Print Your Own Mounts?
Commercial camera mounts are designed for one specific camera in one specific frame. Change either and your mount becomes useless. A 3D-printed mount can be customized to your exact combination of frame, camera, and desired angle. If you run a hybrid setup with an analog FPV camera and an HD recording camera, a printed dual-camera mount solves what would otherwise require awkward stacking of multiple brackets. When the mount breaks — which it will, eventually — you print another for pennies in material and 30 minutes of printer time instead of waiting a week for a $15 replacement to ship.
Camera Mount Design Principles
A well-designed camera mount must balance three competing requirements: rigidity to maintain a consistent angle, compliance to absorb impact energy, and adjustability to find your preferred camera tilt. TPU excels because it is rigid enough to hold the camera steady at speed but compliant enough to deform in a crash and spring back. Designs should include: side plates that fully capture the camera boards, a bottom wedge that sets the default angle, top and bottom screw holes for security, and a small gap (0.5mm) between the camera body and the mount to allow for TPU compression during assembly.
Popular Camera Mount Designs
The most downloaded camera mount designs on Printables address specific popular combinations. For the DJI O4 Air Unit, frame-specific mounts have proliferated — search for your frame name plus “O4 mount” to find a community-designed option. The Walksnail Avatar HD cameras use a standardized 19mm pattern that many existing micro camera mounts accept with minor modifications. For analog builds, the Runcam Phoenix 2 and Foxeer T-Rex share the 28.5mm mounting standard, and mounts for these are available for virtually every popular frame.
Antenna Holder Designs
Antenna holders serve two critical functions: positioning your antennas for optimal radiation pattern and protecting the vulnerable connector from crash damage. For ELRS receivers, immortal-T style antennas need to be held at 90 degrees to each other — a printed holder that slots into the rear standoffs achieves this cleanly. For VTX antennas, the goal is to relieve strain on the MMCX or u.FL connector. A well-designed holder grips the antenna shaft, not the connector, and provides a gradual strain relief curve rather than a sharp bend. The VAS天线座 (antenna mount) design philosophy — holding the rigid base of the antenna while allowing the flexible element to move freely — has become the community standard.
Common Mistakes and Fixes
Over-constraining the camera: If your mount grips the camera too tightly, vibration transfers directly to the image sensor and produces jello. Add 0.2mm of clearance to each dimension and rely on the mounting screws for security. Printing with wet TPU: Stringing between the camera cage arms creates sharp edges that cut into wires. Dry your filament. Ignoring print orientation: Layer lines parallel to the direction of impact create weak planes that separate on crash. Orient the part so that layer lines run perpendicular to the expected impact direction. Using too few perimeters: For structural mounts, 4+ perimeter walls are non-negotiable. Infill adds little strength compared to additional perimeters.
Start with community designs, learn what works for your setup, and then try modifying them in CAD. A customized camera mount is one of the most functional things you can print for your drone.