Do the location glitch, go to any area and find 1 spin metal near the border to the area, grab it, sparrow to the next area until you see the new location flash up at the bottom, turn round n go back, it'll still b there. DONT kill any enemies as the game remembers your last action but doesn't remember your material collection, you can even find 2 close together sometimes, or 1 nr each border, half's your time, The 2 best places I found where rocket yard > divide, or skywatch then sparrow thru the building where you end the wizard mission story 3, n then back. If you go to rocket yard from divide, there's often 1 nr the servitor, or turn left n there's 1 or 2 nr the pipe whee u spawn for the devil's lair strike, It messes up if other players join the area so do it in quiet areas. If players are near and stay, just orbit n return. FWIW , took me 155 spin metal picks to get the 10 material, 153 relic iron for the void one, and 162 helium to get the solar ones. Good luck