RotorX Atom 4" - 5s

By betodiaz91 on Feb 14, 2018

21  1,106  5

This will be a 5s, 4" Atom.

I decided to build another 4", since I had a lot of the parts already.

This build will have a canopy designed for the GoPro Session 5. Hopefully with the 5s, it will feel awesome.

I decided to go with the HGLRC F440 stack mainly due to the weight. I wanted the lightest setup possible to make way for the GoPro. The stack also takes 5s, so it's perfect. 40amps are way more than I'll ever use, so I think it'll be good.

For motors I'm using the RX1407's 2800kv, meant to be used on 5s as well.

Hardest part of the build was soldering up the motors to the ESC. I think it came out pretty clean. I decided to rotate the FC and the ESC 90 degrees to the right because of the power leads on the FC. They usually come off to the right, but it would run into the canopy. I also had to reset the values of the motor resources in order to get the right orientation.


  • AUW w/ Atomv3 Canopy (No HDCam) (700mah 4s) - 235g
  • AUW w/ Atomv3 Canopy (No HDCam) (850mah 4s) - 255g
  • AUW w/ Atomv3 Canopy (No HDCam) (850mah 5s) - 275g

  • AUW w/ GoPro Canopy (700mah 4s) - 320g
  • AUW w/ GoPro Canopy (700mah 5s) - 340g
  • AUW w/ GoPro Canopy (850mah 4s) - 340g
  • AUW w/ GoPro Canopy (850mah 5s) - 360g



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JakeCurmi   Jul 23, 2020  

thanks for this

OKFPV   Apr 09, 2018  

Do you have to be gentle on the throttle to not burn out one of those motors? Looking to do a similar build.

betodiaz91   Apr 09, 2018 

Not at all. These motors are super durable and come down cool everytime

Querk   Feb 14, 2018  

Where do you get the pod?

betodiaz91   Feb 14, 2018 

This is the file:

I used Shapeways to print it. It was like $20 but came out amazing

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