CTC Stepper motor fan adapter

I was fed up with my CTC making a vibrating noise whilst switched on.

I made the attached design and used rubber washers on the bolts to mount it through the 20mm hole next to the pre drilled screw holes

I had to redesign the throat at the end as I didnt leave enough clearance to fit through the hole as per the photo.

I have redesigned this and reprinted. Next time I take the printer apart I will upload a new picture.

This is my first go at designing a custom part so any feedback is