About this 3D model

This is the right bracket, the left bracket just needs to be mirrored, the threaded part needs to be printed with supports, the spool shaft uses the @达文西FPV大佬 one released on https://makerworld.com/zh/models/119707#profileId-128773. I used 3MM screws for the holes. I've also posted the 1515 aluminum profile corner slot.