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When designing an H-quad frame, do the motors need to make a square? If they are not arranged as such, say in a rectangle, would I need to make changes to the mixer settings in the KK2.1? Or would a standard x layout quad setup work? I know I will need to change the roll/pitch PID values separately.

Hi all, I'm having an odd issue with my SimonK flashed ESCs. They are the HobbyKing BlueSeries 30A. Usually, when I hook up the battery, they all give 3 ascending beeps, and then 1 long beep to indicate being armed. However, sometimes they will start up with 2 descending beeps, and then 1 long...

I have heard that on the KK2.1, the power rails are separated, and so it is okay to plug more than one switching BEC in at the same time. Is this true? I wouldn't want to kill my ESCs or FC...

I have heard that on the KK2.1, the power rails are separated, and so it is okay to plug more than one switching BEC in at the same time. Is this true? I wouldn't want to kill my ESCs or FC...

Hello. I just built a quad with the KK2.1, HK BlueSeries 30A ESCs, Turnigy L2215J-900 motors, and Spektrum DX5e Tx/AR600 Rx. I finally got the gains tuned properly, and now I am having this weird issue where every few seconds, the motors cut out for something like a quarter second, then recover...

How are you supposed to secure a LiPo to the frame? I have an SK450 and Zippy 5000 3s. I tried using a velcro strap to strap it to the bottom, but it slides around with any real movement, and could easily fall out. How do you mount these?