Question: where are the robot parts in torchlight 2?
Answer: Robotic Drum Act 1 Crow's Pass In "The Widow's Veil" [00:06]
Robotic Arm Act 2 Ossean Wastes In "Tower of the Moon " [01:42]
There is 4 gongs on the walls scattered around the dungeon. Hit all 4 with an attack and the part will become obtainable. [01:49]
Act 2 Salt Barrens In "Brood Hive" [03:16]