Crafting Stations can be found in the Forei depot of the Starting location.

At the Crafting Station you have 5 different Crafting suggestions:
Weapons - You can craft Tier weapons from excess Upgrade material.
Equipment - You can craft Tier equipment from excess Upgrade material.
Mining - You craft Bars from Ore.
Upgradables - You craft the most useful items that you can then use for the items you wear.
Dungeon - You craft RAID Tickets and Self Boosts etc.

Crafting Station has a Crafting Skill which increases by Crafting Items.
Crafting Skill - The higher Crafting Skill, the greater the chance of getting a better item Rarity.( Weapons & Equipment )