Hi, new here! Vector on bixler, gain and pids? Help!

SnoozeDoggyDog · January 18, 2017, 02:51:40 PM

It's just a thought, it's not a servo horn slipping? Stripped horn?

Loopdreams · January 18, 2017, 03:25:23 PM

Sounds more like a warped wing or fuselage or something. Has it been crashed?

Nozer · January 18, 2017, 03:36:26 PM

No hard crashes that caused any damages. Call it "hard landings" ;)

Nothing seems to bent or warped, not at first sight any way...
Will try to messure and look more into that.
What i notice were that the "lids" for the cables under the wing were not flat.
Had it taped before. Now i rearanged the cables, and glued the lids to get it perfectly flat. Can that be the reason?

FPVSteve · January 18, 2017, 08:28:33 PM

Maybe, it might have been causing drag but I wouldn't have thought it would have been a huge amount unless they were sticking right out...

FlightyFishcake · January 19, 2017, 10:44:07 AM

I've used a the vector on a couple of planes and it was rock solid, never needed any changes to the settings.

On my old bixler I had the previous ET flight controller, that took a bit of tuning, but worked fine.

A couple of other things to check with the vector.

Firstly make sure the vector is secure in the plane. I had one come loose and it made for and 'interesting' flight.

Also just to be sure - the planes not stalling is it? I know the bix can glide well, but it might tip stall? The Skywalker I had the Vector on would do that. Stalls are more likely if it's a heavy setup. What's the all up weight with battery?

FlightyFishcake · January 19, 2017, 10:45:42 AM

Also if you have any video of the OSD from the Vector to share it makes it easier to see what's happening...

I've found few time the crash analysis is easier to work out watching the video a few times later!

Nozer · January 28, 2017, 04:59:11 PM

Problem solved :)

It was the weak original wing-spar that was the problem.
Last weekend when i flyed. A fellow flyer realised that there was a "V" shape of the plane. And all of a sudden the plane did this spiral of death to the ground.
As i were flying without googles on, i started to realise that the spar was the problem when i for the first time saw this spin.

Sometimes it flied just fine. And sometimes dont. Probably depending on how much wind it was and how hard i pushed it.
Maybe the vector also got confused by the wings flapping and instead of manage to make it stable, overcompensated and crash?

New spar in place and tried it today.
Flyes like a dream and rth, loiter and so on works flawless :)

FPVSteve · January 28, 2017, 05:12:39 PM

Ah that'll do it :laugh:

BlueFlyer · January 28, 2017, 05:26:04 PM

Really?

The actual plane itself was broken.

How did you fail to see the spar was broken as you assemble the plane at the field?

Nozer · January 28, 2017, 05:32:41 PM

The spar wasnt broken.
But it were a LOT of flex and movements in the wings.
When changing to another stiffer spar, the problem was gone.

FPVSteve · January 28, 2017, 06:13:57 PM

I can attest to this by the way - some of the Bixler 1.1s have a dodgy spar. The centre piece should be glued into one of the wings IMO ... it might look okay, but when you slide the wings together it sometimes goes 100% into one of the wings instead of 50% across each. This results in the spar being "okay" but in the wrong position in the wings, causing flex. Major flex.