i designed it to fit smoothly when printed with 3 walls with a .4mm nozzle, i dont recomend using vase mode it will be loose but also because ive yet to get a water tight print with single layer vase mode. also to print easier youll need to drill holes in the botton for wter flow. i tried printing holes in it and it just took longer to print. Print It With 3 walls, no supports, and no top, or infill.