Here is a mini quad turbine in TPU with 1103 brushless motors that accepts the 3S with the propellers 4 blades and 2S with the 5 blades. The chassis and the lipo door are in TPU Ultimaker and the top plate in Polycarbonate or ABS to rigidify the whole. It takes 20% filling for the frame with 230 ° on a carpet at 70 ° at a speed of 30mm / s. FC Lumenier F4: https://www.drone-fpv-racer.com/lumenier-micro-lux-f4-1308.html Receiver spektrum dsmx: http://www.lemon-rx.com/index.php?route=product/product&path=72&product_id=109 Receiver Sbus/ ppm frsky: http://www.banggood.com/fr/FD800-Tiny-Frsky-8CH-PPMSBUS-Receiver-Compatible-FRSKY-ACCST-X9DPlusDJTDFTDHT-For-QX95-QX90-p-1108071.html?p=LD020411878172015024 Esc4X12amp: http://www.banggood.com/fr/20x20mm-Racerstar-Mini-RS12Ax4-12A-Blheli_S-BB2-2-4S-4-in-1-Brushless-ESC-D-Shot-Ready-p-1132683.html?p=LD020411878172015024 Brushless 1103 7800kv 3S: http://www.banggood.com/fr/Kingkong-1103-7800KV-1-3S-Brushless-Motor-For-50-80-100-RC-Mini-Multirotor-p-1122783.html??p=LD020411878172015024 Propeller 4 blades : http://www.banggood.com/fr/10-Pairs-Racerstar-2035-50mm-4-Blade-ABS-Propeller-1_5mm-Mounting-Hole-For-FPV-Racing-Frame-p-1127196.html?p=LD020411878172015024 Propeller 5 Blades max 2S !!!: http://www.banggood.com/fr/4Pcs-2_0-Inch-50MM-ABS-5-Blade-Square-Propeller-2-CW-2-CCW-for-1104-Motor-p-1120653.html?p=LD020411878172015024 Lipo 3S 450mha: https://hobbyking.com/fr_fr/turnigy-nano-tech-450mah-3s-65c-lipo-e-flite-compatible-blade-180cfx-eflb4503sj30.html Lipo 2S : https://hobbyking.com/fr_fr/turnigy-nano-tech-450mah-3s-65c-lipo-e-flite-compatible-blade-180cfx-eflb4503sj30.html https://www.facebook.com/Microdure/