CNCLess Ultra Light Tubular 6’ Mid Range FPV Frame

I want to design a super lightweight yet rigid 6-inch FPV frame. Inspired by Eyefly's designs, I believe utilizing materials like carbon tubes and 3D printed parts, which do not require CNC machining, is a very clever approach and the best way to enable everyone to enjoy a low-cost, high-performance FPV frame.
The frame utilizes lightweight 5mm carbon tubes and adopts a pre-stressed design to achieve sufficient rigidity. Through flight validation, this drone effectively suppresses low-throttle vibrations and exhibits no jello effect in the mid to high throttle range. With an 850mAh 6S LiPo, it achieves approximately 9 minutes of flight time, while with a 6S 5000mAh 21700 battery, the flight time can exceed 35 minutes. At 35% throttle, the cruising speed can be maintained at 50 km/h, making it well-suited for medium to long-distance flights.

Frame Specifications:
Motor Mount: 12mm x 12mm
Flight Controller Stack: 20mm x 20mm
Video Transmitter: 20mm x 20mm
Camera: 19mm
Weight: 55g

For the installation of the frame, please refer to the following diagrams for installing the printed parts. Please use 5x4 3K round carbon tubes. After completing all assembly steps, it's necessary to use instant glue or epoxy resin to bond the printed parts with the carbon tubes.

Tube Length

Main Frame Installlation

Canopy Installation