Thread Tube - 3D Printed Thread Test

Update: Have included a crystal-shaped insert that fits inside the tube.

I created this as a further test of printing threaded objects created using Fusion 360's creat thread function and specifically to see if I could get the joint where the 2 halves meat to be invisible.

Here is a link to the fusion 360 file for anyone who wants to mess with it - https://a360.co/3aj0g6M