Every serious Jedi has got to have his or her own lightsaber. Some people spend months or years crafting their unique replica out of wood, metal, or plastic, and some of these builds can get pretty intense. Take, for instance, this 3D-printed lightsaber from 's Sean Charlesworth.
Charlesworth's lightsaber takes full advantage of the intricate level of detail afforded by 3D printing. His design features tiny engravings and pointy bits at the end. His lightsaber also has a working button that lights up a plastic crystal on the inside.
Perhaps most impressively, some of the exterior panels are removable, offering a clear look at the interior. The attention to detail that made the outside so amazing is also present on the inside, with a number of additional parts like cooling fins that make the build seem like it might just be real.
Charlesworth printed all the parts on a Formlabs Form 2 printer, and made all his source files , so if you've got access to a 3D printer yourself then you can make your own beautiful lightsaber. Tested also promises to release a video soon with assembly instructions.