I remember during the loot cave days that my only character (warlock) managed to get well over 1500 of both weapon parts and hadronic essence. I never was short of parts for weapons or armour but now, a year on having dragged 3 characters through both The Dark Below and House of Wolves, I am starting to struggle. Just waiting for Tess to sell a consumable that increases the amount of weapon parts or armour parts you get for a day or two.