Armattan Tadpole 2.5" with Caddx Loris

By Keeph on Oct 27, 2020

18  930  2

This build started out as an extra f/c I was gonna toss in the bin for spare parts. One boring day I was surfing YouTube and came across a video by Tmac where he built a 2.5" tadpole. That little thing was fit in the palm of his hand and zipped around like a 5" bigboy. Insperation sparked and spawned my version of a Armattan Tadpole. What a great little quad.

I started the build by putting motors on and seeing how much wire and room I had. After a few mock up of the electronics I decided to put the XM+ receiver on the bottom under the f/c and stacked the loris dvr on top of f/c and used a whitenoiseFPV 20x20 board for the TBS nano transmitter and mounted it forward of stack on stand-offs. I drilled the holes for standoffs a little off center with worries that the solder joints might touch top carbon plate on frame. Luckly everything fit with a few mm between video trans. and frame. I did use some tape between boards for insurance.

One the mock up was done I broke it all back down and started the full build. first was the wire sleeves for motors. Next I mounted the XM+ receiver and video antenna. Afterwards I installed the f/c and got all wires soldered inplace and left long for installation of other electronics. Here I checked the top plate to make sure it still fit in place and after conferming I continued by installing the Caddx Loris, FPV system, and srewed it all together.

At this point I went into BetaFlight used the setting TMac showed in his video and went flying. A few changes of rates and PID's to fine tune for my flight style. With a custom 2s-500mah battery I'm getting 6-8min flight times and with a custom 2s-1000mah it gets 10-12mins.

By far my favorite drone to fly. The Caddx Loris is a really good dvr, FPV cam is a bit cloudy but with a ND16 and some tuning of cam setting the DVR looks nice.

Photos

Part List

Frame

Armattan Tadpole 2.5" FPV Frame (25 builds)
Getfpv.com
$34.00

Flight Controller

Diatone Mamba Toothpick F411 AIO Flight Controller (5 builds)
Getfpv.com
$44.99

Motors

iFlight XING-E 1104 8300KV FPV Micro Motor w/ Plug (4pcs) (2 builds)
Getfpv.com
$39.99

Propellers

Gemfan Flash 2540 Durable 3 Blade (Clear) - Set of 8 (3 builds)
Getfpv.com
$3.69

FPV Camera

Caddx Loris 4k Recording and FPV Camera System
Getfpv.com
$89.99

FPV Transmitter

TBS Unify Pro Nano 5G8 (3 builds)
Getfpv.com
See Site

Antenna

Lumenier Micro AXII Shorty SMA 5.8GHz Antenna (RHCP) (6 builds)
Getfpv.com
$19.99

Receiver

FrSky XM+ SBUS Mini Receiver (1529 builds)
Getfpv.com
See Site

Radio

16CH 2.4GHz Jumper T16 Pro V2 New Hall Sensor Gimbals Built-in Multi-Protocol Module Radio Transmitter Compatible OpenTX for Air (3 builds)
Amazon.com
$1.00

Goggles

Fat Shark Dominator HDO 2 FPV Goggles (64 builds)
Getfpv.com
$499.99

Hardware

M3 Nylon Hex Male-Female Spacer Standoffs Screw Nut Assortment Kit - Black (3 builds)
Racedayquads.com
$9.99

Hardware

4 x M2 x 20mm Steel Bolt (1PC) (3 builds)
Racedayquads.com
$1.16

Misc Parts

12pcs Plastic Protection Antenna Tube with Caps for FPV Drone Receiver Antenna Frsky XM+ X4R X4RSB (2 builds)
Amazon.com
$8.99

Misc Parts

30ft PET Expandable Sleeving Flexo Wire Cable Sleeve (1/4", Silver&Black)
Amazon.com
$7.65

Misc Parts

Superbat 3" U.fl/IPEX Cable Mini PCI to SMA Female Low Loss Coaxial Cable for Wireless Routers Mini PCIe Cards Network Exte
Amazon.com
$6.89

Misc Parts

Unify Pro Nano Mounting Board (Nano-Nano) (20 x 20) (8 builds)
Whitenoisefpv.com
$3.95

Video Receiver

Foxeer Wildfire 5.8GHz 72CH Goggle Receiver Module
Getfpv.com
$89.99

Accessories

Lumenier Double AXII 2 Long Range 5.8GHz Antenna (RHCP)
Getfpv.com
$29.99

Accessories

Lumenier AXII Patch Antenna 5.8GHz (RHCP)
Getfpv.com
$24.99
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Discussion

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Jodie Froster   Oct 29, 2020  

Very impressive packaging/use of space!!!!!

Keeph   Oct 29, 2020 

thank you, It got a little aggravating and tight. Nothing worked right until I put the XM+ receiver under f/c. XM+ on the whitenoise board was hitting top plate of frame.

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