HNI Technology, provides rapid prototyping, model making and custom machining services to industries outside the HNI Industries corporation. Sls (Selective Laser Sintering) Prototyping Services for Product Development; Purposes Include Production of Plastic Prototype Parts for Verification of Function, Form, Appearance & Fit; Mold Inserts for Plastic Injection Molding & Metal Prototype Parts; Patterns for Creating Investment Cast Metal Parts; Machining Services Including CNC Lathe Turning, CNC Machining ...