Fenix Sleeper

By Fenix on Aug 13, 2017

3  623  0


The Rx used turned out to suffer from micro failsafes. Only about 0.1s long according to blackbox, but that is enough to put you out when racing. Ended up changing to an XM+.

The camera is very exposed with this frame. After breaking a couple I designed an AIO camera case and mount. This has been great and saved me from breaking a lot cameras. The TPU has enough give to let the lens dislodge instead of breaking. Much cheaper to focus a lens than replace a camera.

AIO camera case/mount on Thingiverse.

The Fenix Sleeper got off to a rough start but I am now happy with the setup and finally got a few laps under the belt!

And why call it the Sleeper... because no one suspects 2306 motors when they see black red bottoms :stuck_out_tongue_winking_eye:

The Frame

The LowPro was always going to be a tight build with only 20mm standoffs and you are pretty much forced to use an AIO FC/PDB. The CL Racing F4 FC made for a very clean build. Out of all the current AIO FCs available I find the CL to be the most well laid out and with only the feature you need for racing.

Make sure your wire management is on point with the LowPro, otherwise you'll find the cam and VTx mounting plate won't fit correctly.

Frame review by the designer Space Cowboy.

Video Transmitter

The frame is designed around a more traditional VTx with an edge mounted SMA connector, and I originally install one which fitted perfectly. However it was failing and needed a serious upgrade so I swapped it out for a Tramp HV. This was a tight squeeze and could have been installed much easier with a right angle SMA pigtail. OR using the TBS Unify installed on the stack with the mounting PCB would have been easier!

The Rx

I needed something small... no, freakin tiny for this frame as there is literally no space for an Rx. The original plan was to use an a8s for the antenna buuuut it has a terrible problem with brown outs. I ended up grabbing the RX2A and modifying it with an antenna that can be run out of the frame. This has worked so well I now have it running on two 5 inch quads.

Hows it fly?

I couldn't be happier with this build! It's running Betaflight 3.2 with dynamic filtering and it really does help with ironing out rough props after landing in a few trees.

A few hot laps.

Second battery :weary:

Maiden session, second battery... tree trunk. This frame is manufactured by Armattan so the carbon is great but I still managed to snap an arm clean. Luckily I was able to order some spare arms locally in Australia (in red as a reminder) and a week late and I was back in the air. Let's hope the next busted arm is a while off.


Part List



Flight Controller

CL Racing F4 Flight Controller (33 builds)


4 x Spedix ES 30A V2 HV 3-6S DShot600 ESC (2 builds)
See Site


EMAX RS2306 2400KV Black Editions 2306 2400 RaceSpec Motor
See Site


DALProp Cyclone Series T5046C 5046 High-end Propellers (4 Pack) (9 builds)
See Site

FPV Camera

Banggood (130 builds)

FPV Transmitter

ImmersionRC Tramp HV 5.8GHz Video Transmitter - V2 (7 builds)


GEPRC 52mm Stick Antenna I SMA/RP-SMA for FPV Racer Multicopters


2.4G Compatible FS-RX2A Pro Receiver for FS-I6 FS-I6X FS-I6S FS-TM8 FS-TM10 FS-I10 Transmitter (15 builds)

Misc Parts

150mm 2.4G Antenna IPEX Connector (1 pcs)
See Site
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