Abstract
The research focused on the production of prototype castings, which is
mapped out starting from the drawing documentation up to theproduction of
the casting itself. The FDM method was applied for the production of the
3D pattern. Its main objective was to find out whatdimensional changes
happened during individual production stages, starting from the 3D pattern
printing through a silicon mouldproduction, wax patterns casting, making
shells, melting out wax from shells and drying, up to the production of
the final casting itself. Five measurements of determined dimensions were
made during the production, which were processed and evaluated
mathematically. A determination of shrinkage and a proposal of measures to
maintain the dimensional stability of the final casting so as to meet
requirements specified by a customer were the results.
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