Ultralight 3 inch quadcopter on barbeque sticks

thingiverse

### English My father wanted to create an ultralight quadcopter with a 3D printed frame. After several iterations, he achieved a great result with a stiff frame made from barbecue sticks. * Weight without battery: 56 grams * Weight with 2s 400mah battery: 85 grams * Weight with 3s 400mah battery: 98 grams ### Print Settings The frame should be printed **without** supports. The camera holder should be printed **with** supports. This frame was printed using a trimmer line (yellow color), but can also be printed with PETG or Nylon. All the strength and stiffness come from the sticks. ### Part List * F4 2-4S AIO Brushless Flight Controller 12A (BLHeli_S) or any other brushless whoop style flight controller with ESC * Lil Floaters 1103 8000kv motors * Happymodel Diamond VTX 5.8G 40ch 25mw-200mw Switchable VTX * Runcam nano 2 camera * Foxeer Lollipop antenna * TBS Crossfire nano receiver with regular antenna * HQProp DP T3X2 props * 2s 400mah battery * 3s 400mah battery (not recommended, can burn) * 3 x M2 20 mm screw * 1 x M2 14 mm screw ### Build Guide Secure the sticks in the frame with CA glue. Cut the rest after the glue is fully set. Solder motors directly to the flight controller, do not use plugs. Glue and fix XT30 with threads first, assemble with the frame and only after solder wires to XT30. Fix the camera with screws on the left and right side of the camera mount. Glue the crossfire receiver into the camera holder. Antenna supports are made from trimmer line (or filament) and glued into holder with additional fixation with heatshrink. Fix antenna parts with heatshrink. Put VTX antenna in its place and secure the cut with heatshrink.