/diy/ - Do It Yourself

>>1373990
>>1374006
You could do it pretty cheaply DIY. Picrelated assuming cheap parts from banggood eg;

Tarot 650 Sport frame
Tarot 4108 380kv motors
Hobbywing XRotor 40A ESCs
15" T-style props (HobbyKing sell cheap ones)

Use something like an old APM for a cheap flight controller simply because Arducopter will handle a big quad like this better than Betaflight.

For the battery, you can often pick up big 6S packs discounted on HobbyKing. I got an 8000mAh 6S Graphene for £60.

The quad itself will be around 1kg before battery, hence the 3kg in the calculator to take your payload into account.