Making horns.

[Blackrat]

So the company that you asked gave you the correct answer.

i would be inclined to cut this in 50mm stacks , inside first, flip it over and cut outside (have done this many times using locating pins on the table to locate the part)

the geometry of the face of the horn having that curve will make the last layer or two little challenging


if you do many parts of the same, then id be inclined to make a mould like silyavski suggests, proving that composite materials will work