I am not really good with lofts.. If the cooker get hot, pla will not work well.. I don't think you will have much luck printing anything else on an ender 3 at this point in your learning curve. When printing thing with over hangs the slicer will need to add supports so make shore you enable supports in the slicer. I if I get a chance I will try and do a loft from a round face to a square