Flexible quad arm movements

[davethepitch]

Hello all

I know there has been a bit of a discussion on another forum regarding the flexing movement of arms on a quad but i think it was in relation to a collective pitch quad setup but i cannot really remember.

I have just checked my Reptile frame and noticed that the front white arms are a lot less flexible than the black rear arms and i am just wondering how much of an issue this is and should i be concerned about it.

One part of me thinks that some flexibility is good in case of a crash and another part of me thinks i wonder if this could cause a stability issue. Confused

Dave

[Gaza07]

The plastic arms are a bit flexible the original dji arms are better than the clones, its more of a problem if things arent balanced if your props are well balanced you should be fine there are a lot of people flying with them without problems 

[nub]

aye should be fine unless your flying hard

[davethepitch]

Hello Gaza07

I am using 8 x 4.5 Rctimer full carbon fibre props which i have checked on my balancer and they seem fine.

The video below is in my small kitchen and there is a lot of turbulence being caused by the quad and i know it is not the best place to do a first test flight.

Dave

Reptile test flight

[Gaza07]

Looks ok to me like you say its going to get blown about a bit in such a small space 

[nub]

aye get ootside and fly it about Dave 

[Gaza07]

Dont you mean fly it aboot 

[nub]

aye either or, get oot! 

[KK1W]

Nice!

If I got caught doing that in the kitchen I wouldn';t be posting here any more!  (very nice kitchen tho).

I have to do all my testing in the basement or outside. A slight slip with a 120 SR cost a few leaves of a living room plant, I don';t think I';ll do that again either. 

[davethepitch]

I live on my own and i have no one to tell me off for testing in my kitchen but that does not excuse the fact that it is still stupid.  :embarrassed

Dave

[Col_M]

I find the flexible legs are actually a benefit for beginners like us as they soften things out a bit.

If you had really stiff arms your quad would would respond much faster and be more twitchy which is exactly what you don';t want as a beginner, they also dampen some of the vibrations reaching the controller. Think of them like skiis, beginner';s skiis are usually softer and more forgiving, once you get more experience and require more control and feedback then you move onto stiffer ones.

As long as your props and motors are reasonably balanced and you';re not flying like Warthox there';s generally nothing to worry about