Dr. Drones Prätoria 5" build

Подписаться 3,8 тыс.

50% 1

Dr. Drones Prätoria 5" Racing box is a really interesting frame with an ultra low noise profile. I am no expert on frame design so I could not begin to tell you why this is the case, but it's certainly one if the lowest noise frames that have come across my desk. It comes in two flavours, SD and HD, the latter allowing fit for the DJI AU or caddx vista. While its style is in the tradition of a racing frame, I know some use it for cinematic purposes with enough HD cam angle to keep props out of view. Hope the build and analyses are useful. Enjoy!
This frame is available at:
www.kwadstore.at/store/kwads/...
see also for build:
rotorbuilds.com/build/25022
urp.mak-it.at/quads_copters_d...
Other components in the build:
Furious FPV Racepit mini F7
T-motor F55A PROⅡ 6S 4IN1 32bit ESC
Avenger V3 2207.5 1900kv motors
Tattu Rline 1050mah 6s
HQ 5043 prop
DJI air unit
BF 4.2.9 Setup
Filters:
Gyro: RPM3 Q1000 min Hz 100, DN x1 Q180 minHz 100 maxHz 500
Dterm: BQ 140Hz
PIDF
R 60/60/45/45
P 65/65/48/48
Y 70/90/0/70
FF transition 0.5
Dmin off
TPA = PD, 0.4, breakpoint 1250
iterm relax cutoff = 10
NOTE: Optimal PIDs will depend on many factors/components used etc, including the fact that I'm using a lot of TPA ( of both P and D) here. If you decide to use these PIDs, test with caution.
PIDtoolbox:
github.com/bw1129/PIDtoolbox

Кино

Опубликовано:

17 июн 2021

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист

Посмотреть позже

Комментарии : 23

@posrproductions4605 3 года назад

Hello, I am Dr.Drones. Thank you for the Review Brian. It is nice to see, that also other fpv enthusiasts like me are interested in the Prätoria. If there are additional questions, do not hesitate to ask. I am posting a lot of fpv content on instagram: dr._drones Best regards

@PIDtoolbox 3 года назад

thank you! hey it'd be great to see how this frame fairs under the Chris Rosser resonance tests. From the design it's hard to imagine there is much movement in the pitch roll axes. be nice to see how it compares to traditional frames.

@TimeFadesMemoryLasts 3 года назад

The music sounds like Tycho. I like it 😁

@PIDtoolbox 3 года назад

Absolutely! Love that album

@DNLKRNWN 3 года назад

Reminds me of tbs sourceone V. It also has vertical arms.. nice flying too Brian

@PIDtoolbox 3 года назад

Interesting, yes you’re right. Did not know if this frame.

@DNLKRNWN 3 года назад

@@PIDtoolbox yeah. Dunno why its not popular. Tbs source V.

@posrproductions4605 3 года назад

Hello Guys, I am Dr.Drones. There are a few box frames out at the market, the concept is not totally new. But I saw several ones which were shaking around out of the box. The key for the extreme stiffness of the Prätoria are different carbon thicknesses, the design of the joints and the tight tolerances from the cnc milling. The center of gravity is moved forward to keep the back motors a lot cooler and also the CG carriage is lifted to keep the weight of the battery a little bit more in center. There are a lot of small key features which are making the difference, trust me. I raced a lot of standard frame designs in 2020 and I was going back to the prätoria in season 2021, because there was no frame with that amazing flight feeling like the prätoria. (Only for my personal feeling). Thank you guys for the great discussion. More frame content and fpv engineering on instagram: dr._drones Best regards.

@AlvinYeoh 3 года назад

I do wonder if that's due to the extra stiffness that a box design gives. Pain in the ass if you gotta replace an arm but very solid performance.

@posrproductions4605 3 года назад

Hello Alvin, I am Dr.Drones. Your are totally right, it is not that easy to change some parts, if you destroyed something, but I can tell you from my experience. I am racing that frame for more than a year and I never (NEVER!) broke a single 3mm Arm. I broke 3 braces and 4 motor connections plates, thats it. Under hard racing conditions and with more than 100 crashes. It is really rigid, so you dont have to change parts or repair something that often as normal race frame designs. But if you have to, it is a little bit harder, totally correct. Best regards Dr.Drones

@TRexHeliPilot 3 года назад

Cool frame, is it available in the US? If so from what store.

@N4V1G4T0R 3 года назад

It's available at kwadstore.at. I'm uncertain what the shipping cost is though. I'll ask the designer if he intends to find a distributer in the US.

@posrproductions4605 3 года назад

Hello TRexHeliPilot, thank you for your question. I am currently working on a listing of the Prätoria in an US-store. Please give me a little bit more time for that. Otherwise you can order it at www.kwadstore.at, or write me a direct message on instagram: dr._drones Best regards, Dr._Drones

@marlin-fpv 3 года назад

Where is the FC in that build? 😲

@PIDtoolbox 3 года назад

ah, it's a secret. answer below

@marlin-fpv 3 года назад

@@PIDtoolbox 😁😂

@PIDtoolbox 3 года назад

@@marlin-fpv what can I say, I'm not great at tight builds lol

@marlin-fpv 3 года назад

@@PIDtoolbox Not an easy task to extend those arms in height. Over here in germany we flew boxed style frames like until last years season. In the end they ended up getting dropped because being too heavy for a racing rig. They definitely helping to learn to fly smooth lines though. They are also pretty rigid, I was never able to break one flying outdoors.

@anahoua4837 3 года назад

where is the FC?

@PIDtoolbox 3 года назад

Long story 😬

@anahoua4837 3 года назад

@@PIDtoolbox I wanna hear it :)

@PIDtoolbox 3 года назад

Let’s just say, the picture was for illustration. I technically couldn’t fit the AU in properly because I had the stack too high, so I temporarily flew it with the AU strapped on top. 😂. I pushed the FC outta the way for the picture. I mean what else could I do 😬. I hoped no one would notice. Very perceptive of you

@N4V1G4T0R 3 года назад

If using the DJI Air Unit, the stack can't be higher than 18mm or so. It's doable, but not with every stack. And you need to use 90° antenna connectors. The Caddx Vista will fit in a lot more easily.