Engineering supplies mainly come from mining, if you don't have a miner then you will have to buy them. The fastest way to level up your engineering is to buy these components off the Auction House when available, if you don't have gold to do this it is vital that you check out this gold guide.
Apprentice Engineering
1-22: Rough Blasting Powder - 1 Rough Stone
22-30: Rough Dynamite - 2 Rough Blasting Powder/1 Linen Cloth
30-50: Handful of Copper Bolts - 1 Copper Bar
50-51: Arclight Spanner - 6 Copper Bar
51-80: Copper Tube - 2 Copper Bar/1 Weak Flux
Journeyman Engineering
80-90: Coarse Blasting Powder - 1 Coarse Stone
90-110: Silver Contact - 1 Silver Bar
110-125: Large Copper Bomb - 3 Copper Bar/4 Coarse Blasting Powder/1 Silver Contact
125-140: Heavy Blasting Powder - 1 Heavy Stone
140-160: Big Bronze Bomb - 2 Heavy Blasting Powder/3 Bronze Bar/1 Silver Contact
Expert Engineering
160-175: Iron Strut - 2 Iron Bar
175-176: Gyromatic Micro-Adjustor - 4 Steel Bar
176-190: Solid Blasting Powder - 2 Solid Stone
190-205: Big Iron Bomb - 3 Iron Bar/3 Heavy Blasting Powder/1 Silver Contact
205-220: Unstable Trigger - 1 Mithril Bar/1 Mageweave Cloth/1 Solid Blasting Powder
220-235: Mithril Casing - 3 Mithril Bar
Artisan Engineering
235-250: Hi-Explosive Bomb - 2 Mithril Casing/1 Unstable Trigger/2 Solid Blasting Powder
250-260: Dense Blasting Powder - 2 Dense Stone
260-290: Thorium Widget - 3 Thorium Bar/1 Runecloth
290-300: Thorium Shells - 2 Thorium Bar/1 Dense Blasting Powder
Master Engineering
300-305: Handful of Fel Iron Bolts - 1 Fel Iron Bar
305-310: Fel Iron Casing - 3 Fel Iron Bar
310-330: Fel Iron Bomb - 1 Fel Iron Casing/2 Handful of Fel Iron Bolts/1 Elemental Blasting Powder
330-340: Adamantite Grenade - 4 Adamantite Bar/2 Handful Fel Iron Bolts/1 Elemental Blasting Powder
340-350: Felsteel Stabalizer - 2 Felsteel Bar
350-365: Handful of Cobalt Bolts - 2 Cobalt Bar
365-375: Volatile Blasting Trigger - 3 Cobalt Bar/1 Crystallized Water
Grand Master Engineering
375-390: Overcharged Capacitor - 4 Cobalt Bar/1 Crystallized Earth
390-400: Froststeel Tube - 8 Cobalt Bar/1 Crystallized Water
400-405: Diamond Cut Refractor Scope - 1 Froststeel Tube/2 Handful of Cobalt Bolts
405-415: Box of Bombs - 5 Saronite Bar/1 Volatile Blasting Trigger
415-425: Mana Injector Kit - 12 Saronite Bar/2 Crystallized Water
425-430: Mechanized Snow Goggles - 8 Saronite Bar/2 Borean Leather/1 Eternal Shadow
430-435: Sonic Booster - 2 Froststeel Tube/4 Overcharged Capacitor/2 Handful of Cobalt Bolts
435-450: Gnomish Army Knife - 1 Skinning Knife/1 Blacksmith Hammer/1 Mining Pick/10 Saronite Bar
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