This bracket can be used to convert the iFlight A85 to a pusher style quad (like the C85) and can hold a naked go pro. You will also need to print the motor spacers, antenna mount, and fc cover available on the flight website https://iflightrc.freshdesk.com/support/solutions/articles/48001171079-alpha-c85-stl

I paused the print at 2mm height to embed the carbon frame within the part then resumed the print. Printed in TPU, 0.2mm, no supports.