For those of you yet to dig in to the intricacies of fabrication in Bioware's MMO, here's the run-down. At level 10-ish you gain your first companion, and with this you can learn Crew Skills. There's three categories: skills that make things, skills that gather things and skills that send your companion on missions. Credit where it's due, the last two choices are interesting as they allow you to focus on questing while your companion does all cheap swtor credits the tedious work of banging rocks together.
The Artifice crew skill allows you to make lightsaber and blaster gems, lightsaber hilts, enhancements, shield generators and so on. There are two main types of lightsaber hilt: might hilts for melee classes and resolve hilts for Force wielders. There's a few more variants in the later levels but those are the two main types.