Wiring help large bullet to small bullet saftey and flight controller question (noob)

[NotchbackDET]

http://www.hobbyking.com/hobbyking/...s_28_30S_900kv_270w_short_shaft_version_.html these are the motors using a slightly larger wire than my afro slim 20amp ESChttp://www.hobbyking.com/hobbyking/..._Motor_Speed_Controller_SimonK_Firmware_.html

Now my question comes as is this safe to change even with the smaller wire? The ESC is rated up to 30a but brought down to 20a due to the smaller wire so,e in the slim series. This is explained in this video from the manufacture https://www.google.com/url?sa=t&sou...rtI-0J9fDB4StK0eg&sig2=Q-Myad0GizK2_-ESb93faA

I'm comfortable soldering so I want to just solder in larger connectors to the smaller wires (or remove the bullets all together but this is my first quad coptor and I may need faster motors later since I got 900kv) I do like the quick connection . and if nothing will work I may just remove the smaller wire and solder in new large wire and appropriate bullet connectors.

A little of my build explanation and another problem

I'm getting stuff a piece at a time and want to work this out before I get my last parts a battery and controller (TX and RX). I may need to get a new flight controller since I got a cheap eBay one (the only eBay I team I have) since I thought I could flash better firmware on it but I haven't tried yet. I'm a Linux enthusiast and going for my Linux+ its an open pilot board so I think I can make that work unless the hardware is to slow. I have an arduino uno and raspberry pi but I think they may use to much battery as flight controllers.

 

[andy bards]

motors should be fine, (larger wire and connections better if room is no issue)

1 kg of thrust using 4s you will need a 9 x 6 prop using around 16 amps

1 kg of thrust using 3s you will need a 12 x 6 prop using around 18 amps

your flying itself will determine how hot your esc get,,

900kv means you can spin larger props to gain longer flights,, faster motors (more kv/ smaller props ) will give you faster acceleration but will generate more heat and less flight time.

how you intend flying should determine what motors and props you buy, -- being a noob I would go for the 900kv ones you listed with 10 x 5 props using 3s lipo. once used to flying you can then change props and throw on a 4s lipo.

what open pilot board you have,, cc3d ?

 

[Jackson]

I'm comfortable soldering so I want to just solder in larger connectors to the smaller wires

Should work. You could also shorten the thinner wire when swapping the bullets. Amps/resitance of a wire is not just about thickness, it's also about length.

As an example 2.4" of 20AWG has a resistance of .002 Ω which seems rather insignificant. I don't even own a meter that could even measure that. It would show as ZERO.