MaximusFPV Nero 122

By MaximusFPV on Jul 24, 2018

12  569  0

INTRO
So I have to come clean, I've actually been ripping this guy for about a month, but that's because I put my heart and soul into this design. I usually take a fair bit of time in Fusion 360 getting everything just right, but the first cut is enough most of the time. With the exception of a few minor tweaks here and there, when I order a prototype, it's pretty much what you can expect to get whn you order the real deal.
Well not this time.
I spent WEEKS on this frame, specifically the canopy. Also, fun fact, the 3" Stamina 140 (out soon) was the first one of the series, and then I chopped the arms to make the other two for myself (I don't want a 3" but lots of my buddies do). Anyway, the prototyping stage was extensive this time around, and infact so much so that I delegated all 3" work to a local pilot named Todd Ilgen while I worked with the 2" and 2.5" stuff.

THE BUILD
This build turned out to be actually quite clean and simple excpet for one small issue: my SBUS pin (I used pins instead of wires for the XM+ at first) shorted with the singal wire for motor 2 on the connector on the 4in1 below. Caused some weird stuff in the receiver tab, but I felt dumb once I found it and now it works great. Other than that, like I said, it's pretty easy. I would recommend mounting the ESC and motors and wiring those up, then connecting your RX and anything else that is part of the stack to the FC before you install it. Then, drop in the FC and mount the camera and VTX to get good wire lengths. Cut, solder, and you're off!
This setup is actually really interesting because it's got some serious punch for an 1104 7500kV build, but it's also really controlled. With the 2.5 and 3" quads, I often feel like I gain insane power but lose a lot of the precision and control and hangtime, but this one is a nice balance. I have to be honest, though, the 2" is still my favorite, but that's just me.
I can also confidently say that he can take a beating. I went full tilt into a metal pole (PINNNNNNNnnnnnnnng...) and totally wrecked a motor, but the carbon looks like it did when I took it out of the mailbox on day one. That's 3mm with a good cut for ya!

CONCLUSION
I really, really think you should consider this if you're looking for a 2.5" frame. It's light, strong, and fast as all hell, and I built it with what's probably considered a mediocre setup. Slap some Emax 1106 or RotorX 1105B on here with a 3S or even a 4S pack and you'll get complaints from the neighbors about all your sonic booms in the backyard.

Here's some "meh" footage I took as a proof of concept. It's since been improved and that flickering has gone away (no idea what caused it). I also have flown a lot more than this, I just have a nasty habit of FORGETTING THE SD CARD! -> https://www.youtube.com/watch?v=UON8sizRbZY&t=239s

Looking for some more MAXIMUS? Check me out on...
FB: https://www.facebook.com/maximusfpvcustoms/
IG: https://www.instagram.com/maximusfpv/?hl=en
YT: https://www.youtube.com/channel/UCBEA0xeoYmgaYHCn34g3pXQ?view_as=subscriber

Photos

Part List

Frame

Project LiteWav – Nero 122 (2.5″)
Maximusfpv.com
$28.00

Flight Controller

Matek F411 Mini F4 20x20 Flight Controller w/ OSD, BEC (39 builds)
Racedayquads.com
$25.99

ESCs

Spedix IS20A 20A 2-4S 20x20 M2 4in1 ESC - Replacement for IS100 Stack (43 builds)
Racedayquads.com
$20.99

Motors

5 x DYS BE1104 7500kv Brushless Motor (4 builds)
Getfpv.com
$54.95

Propellers

5 x Gemfan Flash 2540 Tri-Blade 2.5" Prop 8 Pack - Choose Your Color (137 builds)
Racedayquads.com
$18.45

FPV Camera

Foxeer Arrow Micro Pro 600TVL CCD FPV Camera w/ OSD (2.1mm or 1.8mm) - Choose Your Color & Lens (215 builds)
Racedayquads.com
$19.99

FPV Transmitter

Runcam TX200U Video Transmitter for the Micro Swift (12 builds)
Racedayquads.com
$17.99

Antenna

RDQ 5.8GHz U.FL Dipole FPV Antenna - Linear (28 builds)
Racedayquads.com
$2.99

Receiver

FrSky XM+ SBUS 2.4GHz Mini ReceiverDefault Title (1242 builds)
Racedayquads.com
$12.99

Batteries

6 x TATTU 650mAh 2S1P 75C 7.4V Lipo Battery Pack with XT30 plug (21 builds)
Getfpv.com
$47.94

Radio

Walkera DEVO 10 10-Channel 2.4Ghz Digital Radio System
Helipal.com
$299.90

Goggles

Skyzone SKY02S V+ 3D 5.8G 48CH FPV Goggles With Head Tracking HD Port DVR Playback for RC Drone (21 builds)
Banggood.com
$295.99

Misc Parts

Ummagawd UMMAGRIP Universal Super Sticky Battery Pad (107 builds)
Racedayquads.com
$4.99

Soldering Iron

BACOENG 2in1 SMD Soldering Station 862D+ (Improved Version of 852 and 862)
Amazon.com
$69.99

Soldering Iron

TS100 Digital OLED Programmable Interface Mini Soldering Iron (111 builds)
Getfpv.com
$56.99

Tools

iFixit Pro Tech Toolkit (4 builds)
Getfpv.com
$59.95
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