Pirx Seven – The ultimate custom 7-inch FPV frame, part 1

Do you know this old saying “If you want something done right, do it yourself”? I do and sometimes I just live according to it. Not always, I’m not crazy, but at least from time to time!

I fly 7-inch FPV drones a lot. To be honest, they are my favorite flying devices. There are a few good 7-inch frames, like TBS Source One for example. There is a difference between good and great tho. I do think that Source One is a good frame, there are a lot of things on it that do not make me very happy tho! The list might not be very long, but it is relevant:

  • props in the view
  • limited space to install split-like hybrid cameras
  • no very convinient place to install VTX
  • it’s not that big inside as one might imagine…

Because of that, and because I think I know how to do it (I’m an engineer) I’ve devided to design and manufacture my of 7-inch FPV drone frame that would fix what I do not like in Source One.

This is how 7-inch quadcopter frame Pirx Seven was born!

Pirx Seven - 7-inch FPV drone frame

  • Dead Cat configuration
  • Plenty of space inside for everything you want! There is even a place in the back to fit the whole 30x30mm stack!
  • Place for Split-like hybrid camera in the front
  • Attachable mounts for antennas, GPS and other accessories
  • Clear, unobstructed view for HD camera like GoPro on the front deck

So far, I was able to mill a prototype unit to test it in flight. So far so good, I really have to say that I like what I designed.

Pirx Seven - 7-inch FPV drone frame

Fully assembled frame weight 205g with steel screws and aluminium standoffs.

Pirx Seven - 7-inch FPV drone frame

What next? Test flight and some changes. The full list consists of 12 points in total and basically means that I will have to redesign almost everything…

If you want to know why the name and what does Pirx stands for, here is the answer. It’s a tribute to Polish writer Stanisław Lem and his book Tales of Pirx the Pilot.

Where to buy

Pirx Seven can be purchased from Armattan Productions.

Additional materials like assembly instructions, basic tune for INAV and many more are available on the FPV Shopping List

2 thoughts to “Pirx Seven – The ultimate custom 7-inch FPV frame, part 1”

  1. uh, WOW!!! My first quad was a Lumenier QAV 250, but wanted more room for cameras and GPS, so i went over to the Source One (’cause of YOU). i do like the larger format frames, myself.
    i’m flying both at the moment, but the Pirix looks like what i’ve been looking for, so, get busy so i can hopefully pick one of these puppies up in the not-to-distant future.
    thanks for all the work that you do –
    Russ from Ocala, Florida, USA

  2. It’s a beauty!!, although I’m desperate to find a beauty of an 8” frame,
    any chance you could design and add the option of 8” arms for this frame?

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