Process and making molds for thermoforming a three-dimensional relief reproduction
OwnerGlenn T. Hardinginventor
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Abstract
Methods and apparatus useful in the development of molds are disclosed. In particular, the methods and apparatus of the present invention are useful, for example, in the context of dimensionally expanding and printing a picture image on a printable sheet for use in making a picture print thermoforming female mold of castible shrinkable material. In addition, a process for producing a male mold which replicates brush strokes of an original painting is disclosed.
Claims17
A method for dimensionally expanding and printing a picture image on a printable sheet and making a picture print thermoforming female mold of castible shrinkable material, said method comprising:
- i) digitally storing said picture image in a computer memory;
- ii) dimensionally expanding said picture image stored in said memory from:
- a) an original dimensional size having a length and a width identical to a final picture print size on a thermoformable plastic sheet to be molded in said female mold of castable shrinkable material, to:
- b) an expanded dimensional size having an expanded length and width wherein said expanded dimensional size is determined in direct relationship to the amount of shrinkage of said castible shrinkable material forming said female mold;
- and
- iii) printing said expanded picture image onto said sheet by use of computer driven printer having a moveable printing head which prints said image as said printing head is moved relative to said sheet;
- iv) brushing onto said printed expanded image a hardenable compound to replicate on said printed image, brush strokes of an original picture image to form said male mold;
- v) making said female mold by pouring said castible shrinkable material on said male mold, curing said castible shrinkable material whereby said material shrinks a predetermined extent in length and width to take on said original dimensional size of said length and width for said final picture print size.
A process for producing a male mold for use in formation of a cast picture print forming female mold which is to be formed from a castable shrinkable material and which replicates brush strokes of an original painting, said process comprising:
- i) printing a picture image of said painting on a printable sheet, said picture image having an expanded dimensional size which is greater than a dimension of said original painting and wherein said dimensional size is further determined in direct relationship to the anticipated amount of shrinkage of the material used in casting said female mold;
- ii) brushing onto said printed picture image a hardenable compound to replicate on said image brush strokes of said original painting;
- iii) allowing said compound to harden to produce thereby said male mold.
Dependencies are inferred from the claim text.