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MASTER PATTERNS – A SUMMARY
The term MASTER PATTERN (or just PATTERN), refers to any sculpture or model sent to a foundry for use in a casting process.
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There are two basic types of master pattern, single use LOST PATTERNS which are destroyed in the casting process, and PERMANENT PATTERNS, which are reproduction moulded, enabling multiple wax copies to be formed and cast.
The standard of construction and finish quality of the master pattern is one of the most important factors in determining the success of the eventual cast. A cast form can only ever be as good as the artist’s pattern on which it was based.
A MASTER PATTERN should always be completed to the artist’s full satisfaction. Studio models should not be sent to the foundry for casting until the design work is as desired.
A wide range of patternmaking materials are available to the sculptor, but only easily burnt off materials can be used to create lost patterns.
Patterns may contain additional features, these can include an internal armature, lifting points for handling and location points for fixing down the completed cast.
Patterns may be cut in the studio or foundry to accommodate the casting process. Patterns cut in the studio will normally be sectioned to the founder’s guidelines.
If in doubt about any aspect of your pattern preparation process, ask the founder. You should also inform the founder about any valuable pattern, insurance condition, hazardous material’s content, or other special feature that might affect their working procedures.
PATTERN KEYWORDS >
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