The creative writers over at the official Tabula Rasa website have published a guide for operating the AFS standard issue crafting station.
The first step to crafting in Tabula Rasa is to make your way to a Crafting Station. These stations are located in most every major AFS camp. Schematics require specific abilities located in the Recruit class.
As you attempt to craft higher level items you will notice the required ability level will increase. The abilities are also used to increase your success rate when modifying an item.
To activate the AFS standard issue crafting station, approach the unit and press “T”. The station is capable of three main functions; Fabrication, Modification, and Disassembly which can be located on 3 tabs on the right side of the interface..
Simply go here to read the full guide.