Cannon Ball
Cannonball 3d printable cannon ball ********************************************************************* Materials: Scalable, Engravable & Embossable a) Acrylic/Smooth Detailed Plastic: Scratch-free & Waterproof for residential applications as a toy. b) PA 12 : " Good dimensional stability, High stiffness, Complex geometry, Thin features functional, Watertight, Good chemical resistance, Skin safe ." c) Steel Alloys - Corrosion resistant; High Tensile strength & Hardness - Stainless Steel's ultimate strength varies anywhere from 526 MPa to 582 Mpa and hardness is 71 HRB while steel alloy like "420 Stainless Steel Infiltrated with Bronze" has a tensile strength of 99 ksi /682 MPa (Non-Annealed) and a hardness of 97 HRB . d) Bronze (Corrosion resistant undersea/salty water for marine applications,...