3in MLR 4s Cinerig (Canibalized)

By gvngoheavy on Jun 26, 2020

8  323  0

This project has been meandering a bit. It started as a relatively aimless motor purchase that has spiralled to what you see here.

When I started this build I also started a 4in Dave_C MLR build, which came together much more quickly and intentionally. I took my time and made a remix of the original Dave_C frame to accomodate a whoop AIO board. Originally the idea was for this to be run with a tarsier hybrid camera, but the advent of gopro lite builds and kits as well as the insta360 Go FPV mode has now shifted my focus. In addition to better video quality and stabilization moving away from a hybrid camera means that I can use shorter standoffs 15mm in the front four locations and 10mm in the rear two.

A quick test lap on a 3s 550mah battery. The ultimate intent of this build is to run it with the GoPro Lite and a 700mah 4s pack.

Update 8-28-20: I have to get through a couple other things but have some flight footage to edit. Long short of the flight was that I got 8:20 flighttime out of an 850mah 4s pack. This was without a gopro, but never the less still pretty impressive.

I also got curious and decided to see if it would hover with a full gopro. It does it, at about 40% throttle on these 3x2.5x3 props. Im tempted to try some 3x3x3 props for a flight or two to see how it manages. Ill definitely be taking a full gopro test run with my 1505 motor'd 4in.

Update 8-14-21: Swapping out vtx and rx for the TBS sixty9 setup for a little more vtx power and cleaner build. To compliment that Im going to a longer antenna to avoid any signal blockage from the camera or battery.

Photos

Part List

Frame

3in MLR EVO Whoop AIO by gvnstewart
Thingiverse.com
See Site

Flight Controller

BetaFPV Toothpick F4 V2 2-4S AIO Whoop Flight Controller w/ 20A 4in1 ESC - XT30 (24 builds)
Racedayquads.com
$41.99

Motors

4 x XING X1404 Toothpick Ultralight Build (unibell)
Iflight-rc.com
$63.96

Propellers

HQ Prop T3X2.5X3 Durable Tri-Blade 3" Prop - Grey (13 builds)
Pyrodrone.com
$2.29

FPV Camera

CaddxFPV Ratel 2 Starlight Low Latency Micro Size Freestyle FPV Camera (67 builds)
Pyrodrone.com
$30.99

FPV Transmitter

TBS Crossfire SIXTY9 - RX+VTX (15 builds)
Pyrodrone.com
$49.95

Antenna

TrueRC Singularity 5.8GHz U.FL Lite - RHCP - 112mm (2 builds)
Pyrodrone.com
$19.99

Batteries

4 x Pyrodrone Graphene 700mAh 4S 14.8V 75C - XT30 (8 builds)
Pyrodrone.com
$63.96

Batteries

2 x TATTU 650mAh 4S1P 75C 14.8V Lipo Battery Pack with XT30 plug (45 builds)
Getfpv.com
$29.98

Radio

TBS Tango 2 - FPV RC Radio Drone Controller (34 builds)
Team-blacksheep.com
$159.95

Goggles

ORQA FPV.One OLED FPV Goggles + Free Bonus (FPV.PRO Antenna Set, FPV.Connect, FPV.Battery) (4 builds)
Getfpv.com
$649.99

HD Camera

Insta360 GO - 180° 1080P 20g Action Camera (12 builds)
Getfpv.com
$199.99

HD Camera

2 x ONE R - Innovative action cams from Insta360 - Insta360 Store
Store.insta360.com
See Site

Misc Parts

6 x M2 Knurled Standoff (1PC) - Choose Your Size25 (9 builds)
Racedayquads.com
$4.50

Video Receiver

ImmersionRC rapidFIRE w/ Analog PLUS Goggle Receiver Module (179 builds)
Getfpv.com
$159.99

Radio Module

TBS Multi Protocol Module (MPM) (2 builds)
Pyrodrone.com
$59.99

Radio Module

HappyModel ES24TX Slim Pro ELRS 2.4GHz RC Transmitter Module (7 builds)
Racedayquads.com
$47.99

Battery Charger

ViFly WhoopStor 1S LiPo/LiHV 6 Channel DC/USB-C Battery Charger & Discharger for BT2.0 & PH2.0
Pyrodrone.com
$29.99

Battery Charger

2 x Venom Pro Duo LiPo Battery Charger | 80W X2 AC DC 7A NiMH LiHV LiPo Balance Charger Discharger with Charger Adapter | LiPo 1S to (2 builds)
Amazon.com
$226.00

Soldering Iron

MINI TS80 Digital OLED USB Type-C Programable Soldering Iron Station Solder Tool Built-in STM32 Chip (5 builds)
Banggood.com
$72.99

Tools

Mayatech Multifunctional Aluminum Alloy Shock Shaft Pliers Tool Wrench For RC Airplane RC Car RC Models Toys
Banggood.com
$12.99

Accessories

AOKoda Lipo to USB Power Converter QC3.0 Adapter Quick Charger for Smartphone Tablet PC
Banggood.com
$6.99

Accessories

BlitzWolf® BW-P9 10000mAh 18W QC3.0 PD3.0 Type-c + USB Ports Power Bank with Fast Charging Dual Input and Output for iPhone X X
Banggood.com
$13.99
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