Armattan Beaver HDZero

By optikool on Sep 17, 2022

7  637  23

This is my next upgrade to my first quad. Because there were so many changes I decided to create a new profile build. This uses many of the same parts from my build at, but upgrades includes the T-Motor 722 Pro FC to take advantage of the DJI port, ExpressLRS and new Beaver Frame. In order to take advantage of the sbus, from this FC, I reversed the TX and RX ports for URART 5 in Betaflight CLI console. I also created a new wiring harness for the VTX, listed below, to connect to the DJI port. Everything else worked as expected. I created custom TPU part for the quad, and they are listed below. I'm deciding if a bumper is needed. I'll decide after it's maden flight. :-)

resource SERIAL_TX 5 D02
resource SERIAL_RX 5 C12


Part List


Armattan Beaver 5" FPV Drone Frame (3 builds)

Flight Controller

T-Motor F7 HD 30x30 Flight Controller for DJI (24 builds)


T-Motor F55A Pro II 55A 3-6s BLHeli32 4-in-1 ESC (16 builds)


T-Motor F80 PRO - 1900KV Motor (5 builds)


Gemfan Flash 5552-3 Durable 3 Blade - Set of 4

FPV Camera

Foxeer Digisight 3 Micro Digital 720P Digital 60fps 3ms Latency Sharkbyte/HDZero FPV Camera - Starlight Lens

FPV Transmitter

HDZero Freestyle 1W Video Transmitter for Sharkbyte / HD Zero By Divimath (12 builds)


TBS Triumph Pro (SMA RHCP) Antenna (21 builds)


RadioMaster RP1 V2 ELRS 2.4GHz Nano Receiver w/ UFL Antenna (29 builds)


Tattu R-Line Version 3.0 1400mAh 22.2V 120C 6S1P Lipo Battery - XT60 (3 builds)


RadioMaster TX16S MKII MAX Joshua Bardwell Edition EdgeTX RC Transmitter w/ V4.0 Hall Gimbals - ELRS


HDZero Goggle | HDZERO (18 builds)


Fatshark Dominator HDO 2 V2.1 OLED FPV Goggles (71 builds)

3D Printed

Armattan Beaver SMA Immortal T Holder by optikool (2 builds)
See Site

3D Printed

Armattan Beaver Prop Strike Guards by optikool (2 builds)
See Site

3D Printed

HDZero Freestyle Mount 30x30 by optikool (5 builds)
See Site

3D Printed

Armattan Beaver Arm Guard by optikool (2 builds)
See Site

3D Printed

Armattan Beaver Camera Base Holder by optikool (2 builds)
See Site

3D Printed

Armattan Beaver Landing Skids by optikool (2 builds)
See Site

HD Camera

GoPro HERO8 Black - Waterproof Action Camera with Touch Screen 4K Ultra HD Video 12MP Photos 1080p Live Streaming Stabilization (37 builds)

HD Camera

GoPro HERO5 Session (303 builds)

HD Camera

Runcam 5 - 4K Action Camera - Choose Color (21 builds)

HD Camera

GoPro HERO10 Black Action Camera (Webcam, Wifi, Underwater)
See Site


Vifly Finder 2 Buzzer - Lost Drone Finder/Locater/Alarm (28 builds)

Misc Parts

Replacement for 6 pcs Panasonic FR Series Capacitor 25V 1000uf Ultra Low ESR (6 builds)

Misc Parts

Keszoox GH 1.25mm Connector Kit and Premium Pre-Crimped Cables, for Pixhawk Flight Controller Wire Kit Pixhawk2,Total 140pcs (2 builds)

Misc Parts

Pyrodrone FC Stack Cover (6 builds)

Radio Module

RadioMaster Ranger 2.4Ghz ELRS Module - Starter Combo (3 builds)


TBS Diamond Antenna (37 builds)

Misc Supplies

MG Chemicals 422B Silicone Modified Conformal Coating, 55mL Glass Bottle with Brushes, Clear (22 builds)

Misc Supplies

HOTA D6 PRO Dual Charger 1-6S AC200W/DC650W 15A w/ Wireless Cellphone Charging - Black (14 builds)
Show stores (6)


Sign in to comment

Spida27   Aug 23, 2023  

Looks sweet. Very neat - Mate - what are the weights (no battery;with batt; with batt+gopro)?

Show 3 more comments
Spida27   Aug 23, 2023 

noted thanks

Spida27   Aug 23, 2023 

495oz is that ozzie for 495grams?

optikool   Aug 23, 2023 

Oops my bad. I mean grams. :)

BatcaveFPV   Feb 01, 2023  

Great looking build, I'm wanting to switch from the Apex frame to this. How did you mount the HDZero vtx, I see a 3d print under it. Is that a 20x20 to 30x30 print? I didn't think this had a 30x30 hole pattern in the front.

Show 8 more comments
optikool   Feb 01, 2023 

No, there's no room if the FC is in the center. Maybe if you use a 20x20 stack you can get it to fit, or use the Race V2. I put it up front so I could use a shorter MIPI Cable.

BatcaveFPV   Feb 01, 2023 

Figured so. No issues with that ufl to sma cable? I've read that these can degrade the signal with digital, but not sure how much.

optikool   Feb 01, 2023 

No, no issues so far with the sma cable.

ICARU5   Nov 17, 2022  

Hi, nice & clean build 👍
How did you attach the standoffs in the middle of the base plate? You had to remove the press nuts, right? Then the holes are bigger than the screw though, did you use some kind of washers to fill the gap?

optikool   Nov 17, 2022 

Yeah, I changed the screws and used an M3 screw at each end of the standoff. This is one of the customizations the frame can handle. I'll upload a couple more images of the underside of the fame.

ICARU5   Nov 17, 2022 

But when you remove the press nuts, the diameter of the hole is much bigger than the holes for the other M3 screws. Does the standoff still fit and is not loose? Thanks for your attention. I’m looking forward to your reply.

optikool   Nov 20, 2022 

No it is not loose at all. The arm core part is still there. The M3 screws screw into the standoff. I added a couple more pictures.

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