About this 3D model

UPDATE: Gap below bearing slots to all them to fit in easily This is a new X carriage for the Anet A6 to fit a genuine E3D V6. It will require 2 M3 screws about 45mm long, and 2 M3 nuts to clamp the hotend in place. The smaller part is to a 0.2mm tolerance or no tolerance. I've not yet printed it, but hope it works! If you have any questions please feel free to ask me!