Looking for servo motor to VEX gear connection

I’m looking for a piece that would connect a square hole gear such as one of these

to a servo motor head such as this one


What is the best way to connect the two?

Thank You!

If you feel like getting creative, and ensuring a solid bond, you could always 3D print a custom insert. that has a connector to the servo.

User something like this.

With a shaft coupler.


I couldn’t find the outside diameter of the VEX shaft coupler. This would work great for me but I need that spec in order to pick a servo to shaft coupler.

I will measure it for you on Monday when I’m back home.

That would be extremely helpful, thank you!

The shaft couplers are around 1/4" or 6.3mm