DIY Servo gimbal help

[Kealan]

So iv 3D printed a 2 axis servo gimbal for my quadcopter. I have put it all together only to realise one problem. How do you get the servo that controls the roll to have a strong and secure connection to the rest of the gimbal??

For example https://i.ytimg.com/vi/dOu_MZyWr8w/maxresdefault.jpg

In this gimbal, how is the white servo arm staying on the roll servo? Why doesnt it just pop off the gear teeth once the quadcopter takes off? I understand glue might keep it on, but would you risk your camera on gluing the servo arm to the gear alone? Just that little joint??

I have screwed my servo arm into my gimbal so that is strong and stable, but I cant see how it would be safe allowing almost the whole weight of the gimbal on the servo arm to servo gear joint.

What i mean is how do I keep the roll servo arm on the white circular gear piece on the top of the servo. This is what my servo looks like http://g02.a.alicdn.com/kf/HTB1SDmM...-automatic-voltage-regulator-hollow-shaft.jpg

Thanks in advance for any replies

 

[Jackson]

Well without actually seeing your design or knowing what sort of a camera you plan on using no one can actually make relevant suggestions.