This is Luke's green lightsaber from Return of the Jedi. I made some changes to CaseStudno8's design, I merged the two lower hilt sections into one piece and I split the upper hilt section into evenly sized discs so that it is easier to print. I also combined two of the switch pieces, changed the belt loop ring and I changed the connectors to a simpler design.
For printing you need one of each piece except for the Grip Disc Black of which you need 8 and the Grip Disc Silver of which you need 9.