Engineering guide This guide is to provide answers to many common questions , and to point out elements of Engineering that are not obvious simply by talking to the trainers . Specialization issues . Specialization and Artisan skill level . As with other skills , specialization grants you access to particular recipes . It does not increase the cap on your Engineering skill level . In order to raise your Engineering skill past Expert ( 225 ) you must speak with the Master Engineer in Gadgetzan and learn Artisan Engineering . Proficiency . Gaining a Specialization . There are two specializations available to Engineers : Gnomish and Goblin . As described briefly here , Gnomish engineering tends towards devices , where goblin engineering builds bigger and better bombs . Where a Gnomish device will malfunction in some inconvenient way , it is seldom fatal . . . . directly , at least . When a Goblin device fails , it usually blows up on you . But " these things seldom happen " . Just ask the trainers , they ' ll tell you ! At 200 Engineering skill , you will be offered a quest : , or . This directs you to a trainer , who will have you sign and return a pledge of secrecy . Having done that , you are then put to showing samples of your engineering work ( provide this many of these items ) . Complete that quest , and you ' re given the specialization . Of special note : many engineered items require you to have engineering skill in order to use them . Most do not also require you to have a particular specialization as well . Making use of this fact would require respecializing , which currently is very painful indeed . ( see below ) Membership Cards : . After you finish your specialization quest , you will receive a membership card : Gnome Engineer Membership Card , Goblin Engineer Membership Card . This card permits you to learn schemata from the corresponding specialization trainer . The membership cards have a duration of 14 days of online time . ( Time when that character is not logged in does not count . ) When it expires , you must visit a trainer for your specialization and pay 2 gold to renew your subscription . Your new card arrives in 24 ( real time ) hours and a small gift is attached . Gifts include bombs ( Goblins ) and parts ( Gnomes ) . Note that the schematics for the small pets ( Lil ' Smokey and Bombling ) were once exclusively available as renewal gifts , but may now be looted from certain mobs in Gnomeregan . Switching Specializations . Since patch 1 . 10 , it has been possible to switch engineering specializations . It is , however , painful . To switch from gnomish to goblin or vice versa Some Notes : " This method , and these notes , are valid at least as of patch 2 . 4 . 2 . " Now , you can go the book , pay 150 gold , and learn the other specialization . ( You lose all schematics related to the specialization you traded for other one . Say you drop Goblin for Gnome , you lose all goblin schematics . ) The Zapthrottle Mote Extractor . With the completion of , the engineer acquires a means to obtain several varieties of primal mote s exclusive to engineering . Motes of Water , Shadow , Mana , and Air can all be extracted from gas clouds in various Outland zones . In Northrend , crystallized ingredient s can be extracted from gas cloud s . When the Engineer is also a miner , only Motes of Life and crystallized life are not directly obtainable . Locations for commonly asked about parts . - Used in Gnomish Universal Remote and Goblin Jumper Cables . Can be found on Harvest Reaper s in Westfall , the Goblins in the Boulder Lode Mine in the Barrens , the Goblins in the Deadmines , Black Ooze s in the Wetlands , the Goblins on the cliffside platforms in Windshear Crag , and from dead combat pets . - Used in a number of recipes . Patch 2 . 1 added a recipe for Fused Wiring that is sold by vendors in Everlook ( in Winterspring ) , and in Shattrath City . 275 skill is required to make Fused Wiring , though . There are other sources of Fused Wiring than building it : It can be found ( rarely ) on mechanical mobs , such as those in Gnomeregan , and Venture Co . Shredder s . The remains of all types of target dummies and other single - use combat pets ( see below ) can contain them , as well as Goblin Rocket Boots when they explode . Recipes in unusual places . Gnomeregan . Four schematics are available within the instance of Gnomeregan : Blackrock Depths . In Blackrock Depths , near Golem Lord Argelmach is a scroll that teaches the schematic for Field Repair Bot 74A . You must have at least 300 Engineering skill in order to learn the schematic from this scroll , and only one person per raid can do so . This robot , like the more advanced Field Repair Bot 110G , acts like a vendor for 10 minutes , buying items and repairing armor . This is very useful for large raids , and moderately so for some instances . Also , Scrapbot Construction Kit can be aquired from Storm Peaks in Northrend . This is a WotLK version of Field Repair Bots . Quests . There are a number of quests that result in either Schematics , or directly learning the recipes for items . There are others that require engineered items to complete . Pets . Engineering provides a range both of Small pets ( non - combat , or ' vanity ' pets ) and Guardian pet s ( single or multiple use combat pets ) . Small pets . Non - combat pets are those that serve no purpose other than to follow you around . They can be used as much as you like and do not die . They do not require engineering levels to use , so you can sell them or give most of them to friends : ) Guardian Pets . Guardian pets are pets that you can summon to help you fight for a limited time . There are two varieties of combat pet available to engineers : Reuseable ones , that usually take the form of trinkets , and have a cooldown period beween uses . And consumable ones , that have " charges " . Both varieties require Engineering to use . Engineering for Profit . Although Engineering usually costs you more than you make , there are a few items which can be sold to other players for professions and quests . And as is ever the case , making items on commission ( or for tips ) is a pure - profit situation . Non - combat devices : Most non - combat pets and fireworks an engineer makes can be sold to other players or given as gifts . Tradeskill items : A few items made by Engineering are useful to people with other trade skills : , , Aquadynamic Fish Attractor , and especially the Salt Shaker . Gun s , Bullet s and Scope s : Engineers have the opportunity to make many guns , bullets and scopes which can be sold to any class which can use them . The bullets are cheap to make , and are better than most vendor - purchased vareties available at the same level . Specialization items : There are a selection of items that can only be made by characters on one specialization or the other , but can be used by any engineer . Some of those can be sold , if you find the right buyer . Credits . This Engineering guide is derived from one created by ( " Tinker " at on the EU forums ) for the World of Warcraft Europe Forums . The original can be found here : 0 . [ ENG ] Tinker ' s Guide to Engineering | This guide is also derived from 0 . Velgard ' s Guide to Engineering . | by Velgard Thanks to these two sources for information and inspiration .