Summary

While browsing through Reddit I came across a post asking for help designing his dream light saber. So after a few hours and a few edits here it is. The inner diameter is 19mm so it is able to hold a 18650 battery to power the leds and sound board.
Reddit Post
http://www.reddit.com/r/3Dprinting/comments/349xjo/help_me_build_my_dream_lightsaber_commissioning_a/
Concept art
http://imgur.com/a/YuIRy