I have recently bought a HICTOP Creality CR-10, I am using Cura as a slicer. My prints are turning out terrible. They are very brittle, and they have the density of Styrofoam, sometimes they even break just getting them off of the print bed. I tried bringing the infill to hundred %, but that did nothing. Also, my printer prints in the very corner so I only get a slice of my print.