I see people asking for resized non-strechy tanks so I thought I give it a try but I'm new at this so it didn't work. What am I doing working? Example of what I did. @PART[KW1mtankPancake] { @description = "1m liquid fuel tanks, available in many sizes." !MODEL {} !MODEL {} MODEL { model = KWRocketry/Parts/Fuel/KW1mtankPancake/KW_Fuel_1mPancake scale = 0.8, 0.8, 0.8 } %rescaleFactor = 1.25 } Of course I also need to modify the volume of the tank as well but haven't done that yet.