Reptile 600

By flinkebernt on Sep 17, 2015

5 908 4

Modified my cheap HJ.MWC frame and made it into a 600-size Reptile quadcopter. AUW at 2170g and flighttimes around 10-12 minutes. The extended aluminium arms are really good compared to the original ones.

Used to have an APM flight controller, but after it smoked I replaced it with a Pixhawk. I just love the endless possibilities of this flight controller. In combination with Mission Planner GCS or the Tower Android app this is just amazing to fly. My longest autonomus flight so far is about 2km with a speed of aroung 6 m/s.

When in Stabilize or PosHold modes the maximum forward speed I've tested is around 18 m/s which is around 64 km/s.

The propellers listed here are not the correct size. I'm actually flying 11x5, but bought them on a norwegian site.

Photos

Part List

Frame	HJ MWC X-Mode Alien Multicopter Quadcopter Frame Kit Landing Gear Banggood.com	$17.00
Flight Controller	New Pixhawk PX4 Autopilot PIX 2.4.6 32Bits APM Flight Controller Banggood.com	$119.99
Motors	4 x Multi Rotor Brushless Motor BE2808-13 (1080KV) for Quad Hexa Octa Multicopter (2 builds) Ebay.com	$104.48
Propellers	NEW Graupner Propeller E-Prop Set 10x5 1326.10X5.22SET NIB Ebay.com	$33.90
FPV Transmitter	Eachine TS832 Boscam FPV 5.8G 48CH 600mW 7.4-16V Wireless Transmitter for RC Drone FPV Racing (5 builds) Banggood.com	$9.90
Batteries	2 x ZOP Power 3S 11.1V 5500mAh 35C Lipo Battery XT60 Plug Banggood.com	$69.64
HD Camera	Original XiaoMi Yi Ambarella A7LS BSI CMOS WIFI Sports Action Camera Banggood.com	$74.99

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Discussion

maximum Mar 01, 2016

I'm looking at building something similar, and I plugged your numbers into ecalc. According to that, you would be drawing more than 27A from those motors at full throttle, however they are only rated for 22.2A. I don't know if you've tested the current draw physically, but if those numbers are correct, you could lose a motor mid flight under full throttle...

Whiffles Sep 17, 2015

Nice build! I prefer to see these AP rigs over all the 250's. Looks like some fairly nice components. Here's my build.

Silverlogic55 Oct 07, 2015

AP rigs take a lot more planning and problem solving.

Whiffles Oct 07, 2015

Yes they do! Sometimes I wish I had built a 250 for all the time I've had to put into maintaining my gimbal.

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