APM 2.6 Custom X8 only bottom motors spin up on arming

ArduCopter Copter 3.1
1

Hi all,

I built a custom X8 using APM 2.6.

The standard parameters offers an option for motors spin upon arming. I enjoy this feature because it allows my motors to get up to speed before receiving a high throttle input.

My question is that for some reason upon arming only the lower set of propellers spins slowly.
Upon throttle up the top and bottom spin and it flys great I’m just hoping someone can provide me some info as to how to get both the top and bottom props to slowly spin on arming.

Thank you,
Tony

2

Is anyone running an X8 config from an APM 2.6?

Ive posted this in multiple forums and still no answer.

Any ideas 3DR?

3

Hi Hercules,

Please try the ESC calibration again, or also you can increase the parameter value a bit.
copter.ardupilot.com/wiki/arduco … SPIN_ARMED

4

[color=#00BF00][b]Please do NOT post the same topic across several forums.
Additional, this is off-topic in the APM:code subforum.
Other post moved to tarpit.

Additionally, please provide sufficient information about your setup, which firmware version you are using, etc.[/b][/color]