RotorX HD Ultra Fox

By LawnDart on May 30, 2020

4  87  2

Bought an UltraFox a loooooong time ago and never built it. Had some parts, decided to throw a Caddx Vista on it.

Added 2mm to the base of the pod to get enough room inside and opened the camera area up a bit to fit the DJI camera. Modeled a 30x30 to 20x20 adapter to fit the Vista on the top of the stack and keep it isolated from the 4in1.

White balance in the pictures sucks. Sorry.


Part List


Atomic Fox 5"

Flight Controller

BrainFPV RADIX FC (4 builds)


Holybro Tekko32 35A 4-in-1 BLHeli32 3-6s ESC (103 builds)


4 x TMotor F40 Pro II - 1750kv


HQProp 7x3.5x3 V1S Propeller (Set of 4) (9 builds)

FPV Transmitter

CADDX Vista Air Unit for DJI HD System (51 builds)


Team BlackSheep TBS Crossfire Nano Receiver (SE) (350 builds)

Misc Parts

TrueRC Bardpole 915/868 MHz

Misc Parts

Matek MICRO BEC 5V/12V-ADJ (5 builds)

Misc Parts

RDQ Micro M8N GLONASS GPS Module (49 builds)
Show stores (5)


Sign in to comment

lorenzo220580   Jul 14, 2020  

hi,how do you resolve the problem of the 5V only from esc to fc ?
i'm looking for a similar setting but I can't understand the cable connection between fc and esc.
can you help me please?

LawnDart   Jul 14, 2020 

I'm using a 5v regulator that is stuffed down by the ESC.

Guides & Reviews

60 5,248  52
Aug 26, 2020

For the longest time we've been limited to 3 to 4 minutes of flight and lots and lots of batteries. With more efficient motors and frame designs it's now possible to push the envelope much further. This guide will walk you through the process of building a micro long range quad capable of flying 8-30 minutes and more than 4km. The build is moderately difficult, but with the right tools and steady hands..

Read more
36 2,792  20
Jul 20, 2020

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