Functional light saber

This is my third attempt, and first fully printable, to make a light saber. You can get all the electronics parts you need at jqsabers.com (http://www.jqsabers.com/electronics/) (including the led, the switch, the led holder, the battery and the chipboard.) You can also purchase a blade if you live in the UK (it is not my case, I bought it elsewhere). To get it work, I spent 100€ max. There is enough place in the handle to carry everything, even the battery. You can also add an small M4 screw to