Started with an cheap AlfaRC Mini LR4 cos it had thick arms and could handle larger motors.
Slammed the top deck down to 15mm by swapping standoffs, Vista unit is a tight fit and rigidity is improved. Frame comes with stupid "folding arms" which means the arms are loose and move during flight. Solved with tights screws and superglue. Frame is rigid and doesn't move now.
Experimented with the new Runcam MIPI, ok but grainy image - moved to Runcam Phoenix HD and the larger lens seems to help reduce graininess. Room enough for a capacitor behind the camera too. Camera is at a fixed 45-50 degree angle which is perfect for me.
2004 motors on a 4" mean plenty of power, but with an unusual KV of 3100 I wasn't seeing enough pop on 4S but 6S was too much - I settled on GNB's excellent new 700Mah serious of lipos which come in 5S with XT30. Perfect! Still seeing current peaks of 70A+ and the plug is holding up fine when backed up with a short run of solid 14AWG.
Resultant quad is perfect for what I wanted - to fly without a GoPro camera but with bags of power and good-enough DVR to share if I feel like it. This quad is for the fun of flying, with no props in view, 190g dry weight and plenty of power with agility too. Cruise speed is good and flips and rolls are tight.
Betafight was used, the 4.3 master branch, and I was able to push PIDs pretty high here. The thicker arms and slammed design work well to keep vibrations low.
Note that I did use sliders for the filters - but recent configurator builds are showing some bugs with filter sliders.
Frame |
AlfaRC Mini LR4 174mm Wheelbase 4 Inch Long Range Ultralight LR Foldable FPV Frame Kit Compatible CADDX VISTA 16*16mm/20*20mm FC
Banggood.com
|
$21.99 |
Flight Controller |
Bot Verification
Droneislife.co.uk
|
See Site |
ESCs |
SkyStars 35A KM35 6S BLHELI_S 20x20mm ESC
Yourfpv.co.uk
|
See Site |
Motors |
4 x FlashHobby King K2004 2004 1750KV 1900KV 2100KV 4-6S / 3150KV 3-4S Brushless Motor for RC Drone FPV Racing
Banggood.com
|
$71.96 |
Propellers |
GEMFAN Hurricane 4023 3-BLADE 4" DURABLE PROP 2CW 2CCW Propeller
(2 builds)
Banggood.com
|
$3.99 |
FPV Camera |
RunCam Link Phoenix HD Kit
(2 builds)
Shop.runcam.com
|
$139.99 |
Receiver |
Happymodel EP1 RX 2.4GHz ExpressLRS (ELRS)
Unmannedtechshop.co.uk
|
See Site |
Batteries |
GNB 700mAh 5S 100C LiPo Battery
Hobbyrc.co.uk
|
See Site |
3D Printed |
RunCam Phoenix Lens Protector by Kaymen219
Thingiverse.com
|
See Site |
Misc Parts |
IFlight – sangles de batterie en cuir PU microfibre, 15mm de largeur 15x150mm/200mm/250mm/180mm/mm, sangle antidérapante, bou
Fr.aliexpress.com
|
$8.05 |
can you post your PIDs / Filters? i have a few 4in builds - I used betafpv 2004 3000kv motors, but cant get a good tune. tried different FC/ESC combos to no avail. Micro Apex 4 and QAV-S mini 4 - both reported to be solid frames.
AirbladeUAV has done it again and this time they've brought long range to the 5" class! Based on the popular Transformer Mini, the new Transformer 5" Ultralight adopts a lot of the same design philosophies with larger props and more payload capacity. It can fly upwards of 20 minutes on a 4 cell Li-Ion battery pack and in ideal conditions it's got a range of over 4 to 5 miles. In this guide I'll walk..
Read moreWith the release of the DJI FPV Drone cinematic FPV has become a lot more accessible, but you certainly don't want to crash a $750 drone! The QAV-CINE Freybott is a compact, lightweight cinematic FPV drone that can take a hit and keep going. It's a lot safer to fly indoors and around people. With a naked GoPro or the SMO 4k you can capture some great stabilized footage. In this guide I'll show you..
Read more
Would love to see some flight footage!
Thanks for your interest, I'll dig out some flight footage. Managed to fry an ESC in a crash so haven't got recent footage but here's some that I recorded when comparing antennas: https://www.youtube.com/watch?v=QjoXfAw-z9g&t=192s