front fan mount + light ring holder. for prusa x carriage.

I've seen the light mounts and the fan mounts and ive seen the fan mount integrated into a carriage. But I didn't want to reprint a carriage and figured I could do both at once. I FITS well, but I used a lot of hot glue to keep it in place.

A key feature of this is that it vents the fan upward to the insulator of the hot end, the airflow doesn't hit the heating block.

I use this most excellent hot end: http://www.hotends.com/index.php?route=product/product&product_id=70 and the fan helps