This fender is for the Fungineers Thunder Rails. If you print the 3 piece fender you can print the mid-section on its side to avoid using supports. I would add some bed discs to help with adhesion. I recommend solvent welding the fender together with some Weld On or 3d Gloop or similar. In the future I may add bosses for some screw/nut hardware but if you solvent weld this together its not coming apart.