THIS READ ME IS GOING TO BE SHORT AND SWEET BECAUSE THE GUIDES LOCATED IN THE "GUIDES" FOLDER ARE VERY THOUROUGH. PRINT ALL JIG PARTS AT 5 WALLS, 20% INFILL CUBIC, OR HOWEVER MAKES YOU HAPPY. SHELL BASES AND PROJECTILES ARE MEANT TO BE 100% SOLID. PRINT THEM IN ANY MANNER THAT WORKS FOR YOU. PERSONALLY, 50 WALLS MAKES PRINTS THE CLEANEST AND FASTEST BUT YOURE MORE THAN WELCOME TO PRINT THEM AT 10 WALLS WITH 100% INFILL, LINES. THE CRIMPERS SHOULD ALSO BE SOLID. ALL WALLS OR 100% IN FILL. IF YOU HAVE QUESTIONS LOOK US UP ON ELEMENT MATRIX METHEMATICS