Download the Best 3D Printed Racing Drone Frames (with links to STL files)
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FPV Racing Drone 5" X-Frame 240mm
Very good design, very durable, but at the same time quite heavy. This 3D Printed drone frame is based on the X-frame. It provides good stability and durability. The same carbon-based drone would cost $30, but if you use a 3D printer and ABS filament, then the approximate cost is $ 1-3.
The frame is a 240mm X frame with individually replaceable arms. The body has holes for a flight controller and other modules with 30x30mm bolt holes. The Frame is designed to be printed with thick walls (3.2mm) and around 30%-50% infill with a triangle infill pattern. Recommended motors are 2306 with prop adapter shaft thread: M5.
Peon230 - 230mm drone for 2204-2206 engines
This is the most popular 3D prints drone ever - Peon230. Based on 2204-2206 engines, it is very simple and fast to print. There are no complicated parts there, and even supports are not required. True, legs could have been more durable, so if you plan aggressive flights, then it is advisable to fix them with a carbon plate. The width of the plate installation distance is 30 mm.
A Peon230 has a lot of modifications, a lot of instructions on how to make him. It is also easy to install a GoPro camera and shoot your flight at the highest resolution.