ARX-R Speed Build

By SoleburnerFPV on Mar 15, 2020

19  595  4

Just another attempt at going fast, I very much enjoyed my recent past build but it was having endless troubles with various components, so it was time to start fresh and do it like I ment it.
Frame is not currently in production but it is the ARX-R from quadstardrones. it comes with the curved arms all straight, and the bend gives them an incredible tension and rigidity.
Really wanted the pod to be turned 45 degrees so that i could fly it as a X config but couldn't find a print file and don't know crap about modeling so for now it will be flown as a plus style. I seriously doubt this will have any change on performance as it will mostly be flying at 75+ degrees of pitch.
Wiring was a pain in the ass because due to the way the stack was spaced, it required the esc to be fliped, which ment the motor wires had to be soldered onto the bottom of the board, very annoying.
Unlike my previous build, this will have current sensing so I will deffenetly be reporting back with some specs and speeds :)
Will start by flying on 5s just to get things tested up and make sure we dont have any crazy problems, then off to 6s we go.



Sign in to comment

dafunk   Mar 17, 2020  

in theory 'plus' configuration has more stability because props get cleaner air.
In 'X' configuration the back motors get dirty air as the front motors create turbulence.

Nabla   Mar 17, 2020 

Hi I am super interested! What kind of stability are we talking about? And what quantifies dirty air versus clean air?

dafunk   Mar 22, 2020 

kind of stability only pro racers can feel. no big deal for normal pilots, maybe the gopro will feel the difference but the 'plus' config puts a prop in the middle of the footage.
normal pilots can quantify by it by touching motors after flights... motors in the rear will feel warmer then the front ones because they have to work more to compensate for the turbulences.

it's hard to answer your questions, I hope I helped

lorenzo220580   Mar 15, 2020  

amazing project

Guides & Reviews

26 1,241  11
17 days ago

Until recently GoPros were delegated to larger quads. A typical GoPro weighs around 125g and we've only recently begun to mount them on 3" cinewhoops. Even that is a stress on the motors. Now we've got the "GoPro Lite". Remove the battery, displays and casing and you're left with a small, lightweight board and sensor. Wrap it in protective TPU casing and you've got a 30g micro GoPro. The Hero6 is..

Read more
42 4,827  47
May 05, 2020

This guide will walk you through the process of building your first FPV quad. The goal with this design was to build a low-cost, lightweight quad, yet powerful enough to safely carry a GoPro in close proximity areas. I chose these parts to minimize the amount of soldering at no cost to the quality. A typical build requires around 30 solders while this only needs 25. It's not a huge difference, but..

Read more