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yes as said that was my first choice but unfortunately it doesn't have a 5V BEC to power the F405, maybe I could use it with the Matek PDB ? https://hobbyking.com/en_us/pdb-xt60-w-bec-5v-12v.html

I'd start with something cheaper, maybe it for the next upgrade, I just need something that works

because of bad quality of unbranded components? I never bought JMT stuff but I've seen a lot of it on the internet, so it is not good? originally I found this but is doesn't have a 5V BEC...

Hello, I'm looking for a 4in1 ESC 6S compatible, my motors at 100% throttle draw a maximum of 28A so I need at least 30A total, 40A would be better. I also need a 5V BEC for powering my Matek F405-OSD flight controller. what about these 2, I don't know these brands, are they reliable...

Ok I finally find out an efficient configuration on 6S which draws only a little bit more than 7A at 100% throttle So looking for a 30A (7 x 4 = 28) 6S 4in1 ESC I find out these which have 5V BEC...

A diy cooling system would not make sense so I'd probably better use 3P , 4S should increase the current draw but having more lift I hope I could fly at lower throttle, later I'll test my cheap 2212 920kv motors to see how much far they are compared to the DJI

Thanks for the links. I can't find official specs of this cell, some site says 30A continuous per cell, some other says 20A, probably someone cheats and 30A is the burst discharge current, anyway I can always use 4S3P. From motors charts I've seen , increasing linearly the throttle the current...

I've found a 30A LiIon cell so using 2P I'd get 60A. according to this video https://www.youtube.com/watch?time_continue=1&v=EumReu1pt1M it should be enough, maybe on 4S over 50% throttle I'm at the limit but there is higher burst amperage that lasts 30 or 60 seconds

I'd opt for a 4 in 1, do you know any that can act as PDB with BEC for FC and other? maybe a bit big motor, weights 100g and pull 15" props, it draws to much corrent for Li-Ion but perhaps using 10" the drawing decreases. I'm following this build but I want to use a 4S, I'll try my unbranded...

@RENOV8R in your image I seem to see 4 separated ESCs. I decided to use a 4S2P Li-Ion, 60A of continuous discharge current should be ok. I don't know if to buy the Matek FCHUB-6S PCB or a 4 in 1 ESCs board, what do you advice? Do you also know some wide and low kv (<1000) motor not expensive?

yes maybe a bit heavy but the greater height isn't a disadvantage for the torque?

I'd use aluminium for arms or something like carbon fiber, and plastic only for junction parts, but I still have to do the maths to find out if it's worth it

I'd use 10" props trying to build a 3D printed minimalist frame, wide stator and low KV motors, 4 in 1 ESCs, Matek F405, if it makes sense 4S or more

yes I know it , unfortunately few components are free available. anyway comparing LiPos at the same brand and capacity I've seen that increasing the cells the g/Wh efficiency increases. watching painless360 endurance quad build series he didn't use a 4S even if it was more efficient in...

However I compared LiPos at the same capacity of my battery brand: cells g/Wh 3 5.597 4 5.390 6 5.309 and 6S seems to have a better g/Wh ratio also for long flight time I've seen many build using Li-Ion batteries, what do you think about it? for the motors if I understood I should...

if I understand, higher voltage is more electrically efficient but it means more RPMs then less props efficiency and more energy lost as heat, so what is better, high or low voltage? I guess the answer is high voltage, that means more power, but using greater stator diameter and low KV motors...

Hi, I'd like to build a quad with these qualities: - easy to fly - easy to carry - long flight time - able to carry a camera - reliable now I have a 330mm quad and it would be nice to recycle some component, I have: - 4500mAh 3S LiPo - Matek F405 FC - 30A 2-4S ESCs - 2212 920kv 3S motors - 8045...

can I use the F405 without the PDB by powering it from an ESC 5V BEC?

what makes the matek F405 better than the Pro V3?

yes but it's inconvenient if I have to change components or use it in other projects some come with the header but they are not pre-soldered