I am assembling my 8" i3v and find that there is a gap between the bottom of the extruder and the top of the aluminum plate that holds the top of the Hexagon hot end. It appears that the top of the hot end cannot go into the recess in the bottom of the extruder far enough by about .75mm. This creates the gap.

My question is do I need to remove some material from the bottom of the recess to make it deeper or is this ok as it is? I think I need to make it deeper. Does a gap between the extruder and the top of the hot end matter if I rout out too much material? Once I bolt everything together with the extruder/hot end and the x axis carriage, I think everything should be snug and not have any gaps but not put any unnecessary strain on the components.

Thanks for any advice you can give me,

Dee