Simple Cone for Wooltwister

This is a simple cone with a 11mm whole in the ground, 1,9mm wall and two triangles at the upper side. The outer walls are with 2,3 mm very strong and can be made thinnerGround is 5mm high because we need this as base for rivet nut. We use it for powerknitting wool winder.To fix the cone on the wool winder you must add an M8 nut. e.g. a rivet nut. I added the blender file if you want to rework it.