macro brat

By daich on Jan 22, 2019

12  1,031  4

have been tuned into Tommy's unique designs since the beginning, finally going to build his Acrobrat.
I love the classic clean/dirty design and the spacious 3 stack and low slung stance is pure awesome.
The inclusion of the heaviest part of the quad, the battery, onto the clean side is just genius. This will make the vibration isolation work that much better. I've seen so many other clean/dirty implementations where the clean mass is virtually just the camera which is only like 10% of the mass quad...kind of pointless. Anyway, eager to see how this works out.

This thing is heavy! It will make for some solid freestyle though. The motors should be strong enough to handle the extra weight. It will just mean sticking to 850 packs and not anything smaller like 650 or 450 as they won't be able to handle the current draw, thus the AUW will sit around 300g

Photos

Part List

Frame

Ummagawd Acrobrat 3" Frame by Tommy Tibajia (33 builds)
Rotorriot.com
$44.99

Flight Controller

20x20mm FullSpeed FSD F411 Betaflight Flight Controller Built-in OSD 5V 3A BEC for RC Drone
Banggood.com
$21.39

ESCs

FullSpeed FSD435 Flytower Part 35A 2-4S 4 in 1 Dshot600 Blehli_S ESC for RC Drone
Banggood.com
$37.69

Motors

4 x GEPRC GEP-GR1408 4100kv Motor - GEPRC (4 builds)
Geprc.com
$59.56

Propellers

GemFan Flash 3052-3 (2CCW-2CCW) Choose Color (37 builds)
Pirofliprc.com
$2.99

Propellers

RaceKraft 3x3 Clear 4 Blade (Set of 4 - Clear) (5 builds)
Getfpv.com
$2.99

FPV Camera

RunCam Split Mini FPV Camera / HD 1080P 60 FPS Recorder (57 builds)
Getfpv.com
$79.99

FPV Camera

RunCam Micro Eagle 1/1.8" CMOS 800TVL Global WDR 16:9/4:3 FPV Camera Built-in Remote Control Version (4 builds)
Banggood.com
$44.99

FPV Transmitter

Rcharlance VX20 5.8G 48CH 25mW/100mW/200mW/350mW Switchable FPV Transmitter for RC Drone (5 builds)
Banggood.com
$14.41

Antenna

2pcs Foxeer Lollipop 85.5mm 5.8G 2.3dBi RHCP UFL Super Mini FPV Antenna Red/Black For RC Drone (106 builds)
Banggood.com
$19.99

Receiver

TBS Crossfire Micro Receiver V2 (287 builds)
Quadcopters.co.uk
See Site

Batteries

FlexRC FPV Racing Drones | FPV Multicopter Store | Quadcopter Parts (101 builds)
Flexrc.com
$52.50

Radio

DJI FPV Remote Controller (Mode 2) (60 builds)
Getfpv.com
$299.00

Radio

Jumper T12 PLUS Open Source 16ch Radio with JP4-in-1 Multi-protocol RF Module With HALL Gimbal for RC Drone Car Boat (10 builds)
Xt-xinte.com
$109.00

Goggles

DJI Digital HD FPV Goggles (141 builds)
Airbladeuav.com
$529.00

Goggles

FatShark Dominator V2 Headset System Goggles Video Glasses 600 X 480 VGA
Hobbyking.com
See Site

HD Camera

GoPro Hero5 Black — Waterproof Digital Action Camera for Travel with Touch Screen 4K HD Video 12MP Photos (8 builds)
Amazon.com
$405.99

HD Camera

GoPro HERO7 Black Action Camera (102 builds)
Getfpv.com
$399.99

Misc Parts

Ummagawd AcroBrat Dual Camera Mount With Front Bumpers by KevPV
Thingiverse.com
See Site

Misc Parts

Ummagawd Acrobrat XT30 Mount by N8MX
Thingiverse.com
See Site

Misc Parts

AcroBrat front/center Immortal T antenna mount by pathfinderzero
Thingiverse.com
See Site

Misc Parts

Acrobrat - Bumpers mounts n skids - axii buzzer by atomsk100
Thingiverse.com
See Site

Video Receiver

GTeng T909 5.8G FPV Artifact 32CH Receiver 2 inch LCD Wearable Watch for RC UAV Quadcopter Drone Aircraft - Rcmoment.com
Rcmoment.com
$99.99

Video Receiver

ImmersionRC rapidFIRE w/ Analog PLUS Goggle Receiver Module (180 builds)
Getfpv.com
$159.99

Video Receiver

TBS Fusion (41 builds)
Team-blacksheep.com
$129.95

Radio Module

TBS Crossfire Micro TX V2 (155 builds)
Team-blacksheep.com
$69.95

Battery Charger

iSDT SC-620 Smart Charger (500W)
Hobbyking.com
See Site

Soldering Iron

MINI TS100 Digital OLED Programmable Interface DC5525 Soldering Iron Station Built-in STM32 Chip (264 builds)
Banggood.com
$53.99

Tools

Upgraded MINI ES121 Electric Screwdriver Smart Repairtools Built-in STM32 Chip OLED with Screwbits (2 builds)
Banggood.com
$99.99

Backpack

Turnigy Transmitter Bag / Carrying Case
Hobbyking.com
$7.42

Accessories

SpeedyBee Bluetooth USB Adapter
Hobbyrc.co.uk
See Site

Misc Supplies

VIFLY ShortSaver 2 Smoke Stopper (2 builds)
Hobbyrc.co.uk
See Site

Misc Supplies

FPV antennas for drones - Actuna TBS ImmersionRC - Actuna Sp. z o.o.
Actuna.com
$29.00

Misc Supplies

TrueRC X-AIR 5.8GHz Crosshair Antenna (RHCP) (4 builds)
Hobbyrc.co.uk
See Site

Misc Supplies

Foxeer Lollipop 2 Stubby 5.8G Omni Antenna(2pcs)
Foxeer.com
$19.90

Misc Supplies

ISDT BattGo BG-8S Smart Battery Checker Balancer Receiver Signal Tester Quick Charge Function (4 builds)
Banggood.com
See Site
Show stores (17)

Discussion

Sign in to comment

Ducky   Jan 30, 2019  

Why two cameras? The nice thing about Runcam is that even with recording they are low latency enough for running the FPV feed from the HD camera. Are you just doing it for multiple tilt angles?

daich   Jan 31, 2019 

I have been flying numerous micro HD setups. both the split mini and the caddx turtle. One day one of my quads with split mini was having issues so I swapped in an old micro swift to quickly get up in the air. Same quad, same tune, different camera and it felt like a different bird. I was flying faster, closer to objects and with so much more confidence.
It's hard to say what it is. Like you said, latency isn't that much different...maybe it's a combination of little things like latency and clarity. All I know is, my enjoyment of a flight with a dedicated fpv camera is absolutely worth the compromise in extra weight and setup.

Jodie Froster   Jan 22, 2019  
1

So I want to believe that your rig here is amazing. Good 3D printed protection, good antenni, high quality fpc cam, along with HD recording protected by the frame. I just wonder if it's too much weight for 3" props. How is she in the air? Still nimble? Those motors are BEEFY, she might still be quite fast if the amp draw isn't too harsh. So curious.

daich   Jan 22, 2019 
1

Yes, she turned out a fatty around 200g before props, ummagrip and battery. I'll try this config out first before I make any changes. If you look at my intrepid v2 build, it handled the gopro session surprisingly well with some tuning tweaks at around 350g. The 1408 motors here are almost the same stator volume as the 1507 in the intrepid so this bird should fly OK, but let's see how maiden goes.
I think if needed, some grams can be saved by removing the motor guards and changing out the eagle to a smaller camera

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