Making a Drone with Lego Motors and Propellers
The motors, propellers and frame are made of Lego. Non-Lego parts are the battery, radio receiver and flight controller. After building I fly this quadcopter indoors and outdoors. Enjoy!
Drone specs:
Motors (4x): Lego L-motor [88003-1]
Propeller blades (8x): Lego Propeller 1 Blade 14L [89509]
Gearing: 1:1.67 gear-up for each rotor
Frame: Lego liftarms and other Lego parts (look at 11:41 component list)
Flight controller: Matek F411-mini
Motor driver circuit (4x): MOSFET IRLR2905 + Schottky diode 1N5819 + Resistor 12 kOhm (look at 03:57 circuit diagram)
Radio receiver: FrSky R-XSR Micro 2.4GHz
Radio transmitter: FrSky X-Lite 2.4GHz
Battery: LiPo 9s 33.3V 200 mAh (made out of nine Turnigy nano-tech 200mAh 3.7V 35-70C Pico)
Weight with battery: 410 grams
Max thrust: 470 grams
Flight time: about 2 minutes
Betaflight settings diff:
---------------------------------------------------
# version
# Betaflight / STM32F411 (S411) 4.1.1 Nov 15 2019 / 12:55:17 (1e5e3d369) MSP API: 1.42
# manufacturer_id: MTKS board_name: MATEKF411 custom defaults: YES
# start the command batch
batch start
board_name MATEKF411
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