3in MLR 4s Cinerig

By gvngoheavy on Jun 26, 2020

7  245  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.

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

4 x GEMFAN 3016-3 PROPS - (2CW + 2CCW) (21 builds)
Pyrodrone.com
$10.36

Propellers

HQ Prop T3X2.5X3 Durable Tri-Blade 3" Prop - Grey (7 builds)
Pyrodrone.com
$2.29

Propellers

3 x HQProp DP 3x3x3 PC Propeller - 3 Blade (Light Purple- Set of 4) (2 builds)
Getfpv.com
$6.54

FPV Camera

Caddx Ratel Starlight HDR OSD 1/1.8" 1200TVL FPV Camera (Choose Color & Lens) (95 builds)
Pyrodrone.com
$35.99

FPV Transmitter

RUSH TANK MINI VTX 5.8G Smart Audio 20X20 (57 builds)
Pyrodrone.com
$37.99

Antenna

Foxeer 5.8G Lollipop 3 2.5DBi Omni Antenna STRAIGHT MMCX RHCP (2pcs) (15 builds)
Pyrodrone.com
$19.90

Receiver

TBS Crossfire Nano RX FPV LONG RANGE DRONE RECEIVER (763 builds)
Pyrodrone.com
$24.95

Batteries

4 x Pyrodrone Graphene 700mAh 4S 14.8V 75C (5 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 (4 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

GoPro HERO6 Black 4K Action Camera (Renewed) (13 builds)
Amazon.com
$226.95

HD Camera

GoPro Hero5 Session Waterproof 4K Video Camera (271 builds)
Phaserfpv.com.au
$189.86

Misc Parts

6 x M2 Knurled Standoff (1PC) - Choose Your Size (16, 23, 25mm)25 (4 builds)
Racedayquads.com
$4.50

Video Receiver

ImmersionRC rapidFIRE w/ Analog PLUS Goggle Receiver Module (146 builds)
Getfpv.com
$149.99

Radio Module

Frsky R9M Lite - Radio Transmitter Module (Black) (11 builds)
Getfpv.com
$44.99

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
Amazon.com
$219.78

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

Backpack

Handbag Backpack Bag Case for Blade Inductrix Tiny Whoop Eachine QX90 QX95 E010 Fatshark FPV Goggles
Banggood.com
$28.07

Backpack

Condition 1 25" XL Waterproof Protective Hard Case with Foam, Black - 25" x 20" x 8" #839 IP67 Watertight Dust Proof and Shock P
Amazon.com
$139.95

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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