Sorry you are having this issue. Do you mean they spin up to max when armed with props on?

The photo upload function does not seem to work here. But my BF settings are very close to default settings: just changed the configuration in mixer from "quad x" to "octo x8". No rpm filtering, with slightly adjusted pids and filter sliders settings.

once armed they spin normally. Apply any amount of throttle ant they gradually go to max with or without the props. I have 2 quads now doing the same thing both Luminier. The mini stack and the full size one. Very annoying. Could it be the wiring? I followed the diagram on the getfpv site.

Without props on the motors will spin to the max given any throttles because FC is trying to compensate the lack of thrust, but with props on there could be several possible causes from both hardware and software sides and I'm not too sure about your particular situation with the information I have. And I have personally never encountered this problem from various brands of electronics. Maybe someone else sees this could help out.

Yeah, people have said this happens with the props off and I can understand why. Thanks for the reply.

SlightlyScratchedCorolla, I checked it on the weekend and it works perfectly. Being new to this I didn't know thats what happens. Thanks for your help.

Haha I completely agree with you. Honestly I'm willing to try anything x8 under 5", the footprint/power ratio is just awesome. Though I suspect it's gonna be extremely hard on the battery. I love how substantial yet under control the power is on this 3" x8, if there's one drawback I've noticed after flying it for week is boy is power huuungry.

That being said, I'm already working on a second big baby... I need (narrator: no he doesn't) two micro x8s, just to see with different components how consistent this platform will be (narrator: it's probably gonna be pretty consistent).

Oh wait, I clicked on the link. D'Oh. Looking really good.

Hey man thanks!!!! Couldn't go so well without your help.
This thing is ridiculously fun to fly! Maneuverability really is off the chart, but I was very timid on the stick because it's like flying a canon ball due to its density. And noise level - It's not really louder than a loud 5" during normal flying but coming out of any remotely sharp moves it screams! I love the flight characteristic so much I might just build another one to further explore this concept of micro octo x8.

Yes! Aren't these machines interesting? I built a 6" X8 purely as an experiment, kind of liked it and built an 8" X8, which was pretty amazing. And the 3" X8 was almost a technical dare - I really didn't expect that much, especially after watching Nurk fly the Big Baby. But, damn, the 3" X8 is just excellent.

And I am absolutely there with you. I went from "This was a fun project, and it might even fly" to "Holy heck, this is the best!!" very quickly. Plus that noise! And I too already have a couple of frames bought for building another 3" X8 - a way better flying robot than expected, and all sorts of fun!

If we ignore the expensive price and a little more time soldering, this thing is definitely a viable alternative for 5" with a little more versatility. It reminds me of my expectation for a "drone" when I first got into flying - you can zig zag through a bunch of gaps smoothly and one punch out you are up high, with a HD cam capturing footage. 5" isnt too good at the gaps part, cinewhoop bad at the punch out part and 3" sucks at the HD cam part.

Andy Shen even put out a 2" x8 frame smol baby, and I feel like I'm staring at a bottom-less hole in my wallet.

Yes, and so it goes... But you can't take it with you, and food and rent are only necessary sometimes, right...? ;-)

No PDB needed! Wire the first ESC as usual, for the second ESC, connect only the 4 motor signal wires and a ground wire to the FC. After that it's just betaflight and blheli configuration: selecting Octo-X8 in stead of Quad X in the mixer drop down menu, and make sure the coaxial motors are spinning correctly.