Patent ID: 6146487
Filing Date: 2000-11-14
Classification: B29C,B32B,B33Y,Y10T

Abstract:
A method for rapid prototyping, comprising:(a) a procedure of generating cutting data which consists of(i) a step of generating a support structure;(ii) a step of deriving a silhouette curve;(iii) a step of slicing in which three dimensional data is sliced into two dimensional sectional data;(iv) a step of generating bridges for every island in the two dimensional sectional data; and(v) a step of generating cutting data and grouping the cutting data into, first and second cutting data groups, and(b) a procedure of building a part in which adhesive sheets are used as bond layers, and which consists of(i) a step of first cutting an adhesive sheet according to the first cutting data in the procedure of generating cutting data, in which a perimeter of excess adhesive sheet region is cut to provide excess adhesive sheet material:(ii) a step of peeling of backing paper of the adhesive sheet, in which the excess adhesive sheet material is removed with the peeled backing paper;(iii) a step of providing and lifting a platform, in which the cut adhesive sheet is fed to a previously-built part;(iv) a step of bonding, in which the fed sheet is bonded to the previously-built part;(v) a step of second cutting the bonded adhesive sheet according to the second cutting data in the procedure of generating cutting data, in which remaining adhesive sheet edges are cut;(vi) a step of lowering the platform; and(vii) a step of post processing, in which the support structure and bridges are removed to form the built part.