Ever since I first saw the Acrobrat introductory video from Ummagawd, I was in love.
The Rotor Riot build video was also very helpful.
Before getting into build notes, a pitfall: If you use the gummies, the mounting holes are for smaller screws - if you have normal hardware you use on 5 inch quads, the bolts and nuts will be too big for this build. I had to use the extra hardware from the Runcam Split Mini in order to complete this build.
On the whole, this is a really well thought out frame and really fun to build. The motors are quite a distance away from the body so there is plenty of prop clearance everywhere, even with the antenna tubes sticking out as much as they do.
The feet make a good addition cosmetically as well as for landing - if you don't use the feet, the first part to touch the ground will be the flight controller stack bolts, which is not a great idea.
The mount at the back is also 3D printed, and the standoffs slide right into it with a little effort. It helps to keep the VTx and RX antennas nice and secure, as there is not much other place to run them/mount them.
In the build video, Tommy recommends mounting the cap on one of the arms, and zip-tying the XT60 to the side plate, which I've done. I like the location of the XT60 here, it's secure and will help keep the power lead from the battery going all over the place, too.
Since there are effectively 5 boards to mount(ESC, FC, Split Mini, VTx, and RX), it's quite a tight build once everything is in - but with a little planning, everything fit pretty well. The only thing I am concerned about is the ribbon cable, which is sensitive anyhow and I am not sure how well it will hold up to abuse.
AUW is 310 grams with props.
With 3030 x 3 RaceKraft props, these motors were nice and speedy but felt a slight bit underpowered. I think once my 3050 x 3 props come in it should be a lot better. On a stock tune, there was no jello whatsoever! Once the props were very beaten up, there was just a slight bit of jello, barely noticeable.
Frame |
The Acrobrat by Ummagawd
(33 builds)
Pirofliprc.com
|
$44.99 |
Flight Controller |
20x20mm Betaflight F4 Noxe Flight Controller AIO OSD BEC w/ LC Filter Barometer and Blackbox for RC Drone
Banggood.in
|
$18.50 |
ESCs |
Kamikaze 32bit 4in1 20×20 ESC
Crowncityfpv.com
|
$32.99 |
Motors |
4 x BrotherHobby Avenger 1507 3600Kv Micro Motor
(8 builds)
Racedayquads.com
|
$39.96 |
FPV Camera |
RunCam Split Mini FPV Camera / HD 1080P 60 FPS Recorder
(57 builds)
Getfpv.com
|
$79.99 |
FPV Transmitter |
Mini VTX5848 48CH 5.8G 25/100/200mW Switchable FPV RC Drone VTX Video Transmitter Module OSD Control
(2 builds)
Banggood.in
|
$12.29 |
Antenna |
Realacc UXII Stubby RHCP U.FL/IPEX IPX 5.8GHz 1.6dBi Mini FPV Antenna For TX RX Fatshark Goggles R
(28 builds)
Banggood.com
|
$7.09 |
Receiver |
Frsky XM+ Micro D16 SBUS Full Range Mini Receiver Up to 16CH for RC FPV Racing Drone
Banggood.com
|
$13.69 |
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310g with what battery?
a local brand 4S 850