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4 pairs of 3x5045 DAL props, and 4 pairs of DAL 5045bn. 1 Imax B6 charger, and a 4S1P 1550mAh 75c Tattu battery :P Making the switch to some 4S

Awful feeling indeed, I did this to 4 motors on a build, started to takeoff and ESCs got warn, and had I not noticed a problem the moment it would not take off it certainly would have caught on fire. Hard lesson learned hahahaha.

It sounds too heavy to me, or like the motor/prop combo is wrong. I had a heavy quad using 1240kv motors 9'' props @ ~3ibs, it barely got lift, and would yaw on the sidewalk during initial test

Might try using google drive.

@Mike H.

Theoretically you need P and I, but D makes tuning easier. Some flight controllers don't use D so it it certainly not impossible. The I should fix the problem that is arising over time, see your P is causing you to overshoot level, you need a value to slow it down and take up the problem...

can you take a picture looking down at the quadcopter to show the props?

Get the quantum V2 goggles, or the Quantum V2 Pro. If you get the Emax Redbottoms (EMAX RS2205 2300KV, which I strongly suggest) then I'd suggest some mini quad ESCs that do 30 amps burst. I'd also suggest that you get a more expensive clone of the Imax (around 21$ as they are higher quality...

Just security, I'd suggest they had is as low as 6 or 8, but I'd suggest you use a "passphrase" to kinda help you remember if you wish to use a password for their site.

If it doesn't fly be sure to take a couple photos or video.

Yeah, I second the balance, you want to have your vertical balance(center of your z axis) at the center of your props hub. If it is too far off your quadcopter will get a kinda pendulum effect, which is not fun.

Generally you would not want to add a GPS to a 250 just simply due to their shorter flight times, the added weight would not really give you any useful features, and makes crashes more expensive. For a 250 the CC3D is a pretty good choice, and with luck you should be able to get the tuning...

Not as much about selling as it is shipping.

Not exactly correct, the I is time based, so if the copter is out f level for lets say 400 ms it will apply 300 ms worth of correction, the D is mainly to pickup where P and I have failed, and not always needed for multirotors> Fast ocilations and difficulty controlling throttle means P is...

I thought Amazon and Paypal were not on good terms? Last I heard Amazon does not meet Paypal's security standards and for this there is no check out with paypal option on Amazon, has this changed?

by time you get everything together it is really around 100$ hahahaha.

Not due to them being a startup, due to the language barrier and their location's reputation for customer service for online stores hahahaha

Not so fast xD I'd certainly stick to only paypal hahahaha I can't immagine good customer service either :P.

Well neither are based in or near Turkey, using a known Tor exit node, or a known proxy hahaha