This is a 3D model of the hexagonal bigtreetech/BIQU extruder with radiator fan mount.
It is meant to be a reference model for designing things around it - this is not a working hotend.
I used the technical drawings released by BIQU, but since not all dimensions were available, I had to estimate based on the drawing.
Included .stl and .step.
You can purchase the hotend here:
Affiliate link - supports me.