Print the saberparts as "spiral vase" and make suere you have GOOD layer adhesion. Looking for a material sturdy enough is a pita. colorfabb's XT is best so far. (Should of guessed there would be some sablin' involved when printing a lightsaber)If the cones are to loose, apply some sticky tape to the top ends to increase the diameter.Help welcome on better cones that withstand  6 an 9 yrs old kids!This baby goes from 200 to 1000 mm with the flick of a wrist!Oh yeah; I've also included a less girly "laser generator" endcap"