Crafting

When you craft an item, there is a 20% chance to fail within your Crafting Level (80% chance to pass)!
For every level you are above a recipe, take 5% off the fail chance (add 5% to passing)!
If you are attempting a recipe from a level above yours, the fail chance is 50%, adding 25% to every level after that!

Examples: 
Level 1 Crafter making Level 1 recipe: 80% pass chance (20% fail)
Level 1 Crafter making Level 2 recipe: 50% pass chance (50% fail)
Level 1 Crafter making Level 3 recipe: 25% pass chance (75% fail), and 0% pass chance (100% fail) for Levels 4 and 5

Items will be lost when a crafting attempt is failed, with a chance to get a "scrap" item, which can be used to replace a common item in future crafting attempts.

Crafting can be boosted with the following: 
Engineer Profession 
Familiars
Chemistry Set [Alchemy]
 Smithy [Armory ] 

DECONSTRUCTION

Deconstruction is a way to break down items into other components. There is no chance to completely fail, will always yield 1-2 items from a predetermined list. Deconstruction does not contribute towards Crafting Levels. There is an equal chance of all items, so rare items cannot be deconstructed. Deconstruction is meant to allow the player to get more crafting components / use up some items that don't have much of a use, or that they have too many of.