PATTERN CONSTRUCTION

PATTERN CONSTRUCTION

On preparing the pattern layout,
the construction for making it is started by studying the layout and deciding
the location of parting surfaces. From the layout, try to visualize
the shape of the pattern and determine the
number of separate pieces to be made and the process to be employed for making
them. Then the main part of pattern body is first constructed using pattern
making tools. The direction of wood grains is kept along the length of pattern
as far as possible to ensure due strength and
accuracy.
Further cut and shape the other different parts of pattern providing
adequate draft on them. The prepared parts are then checked by placing them
over the prepared layout. Further the different parts of the pattern are
assembled with the main body in proper position by gluing or by means of dowels
as
the case may be. Next the relative
locations of all the assembled
parts on the pattern are adjusted
carefully. Then, the completed
pattern is checked for
accuracy.ย  Next all the rough surfacesย ย ย  of pattern are finished and imparted with a thin coating of shellac varnish.
The wax or leather
fillets are then fitted wherever
necessary.
Wooden
fillets should also be fitted before sanding and finishing. The
pattern surface once again prepared for good surface and give final coat
ย ย  of shellac. Finally different parts or
surfaces of pattern are colored with specific colors mixed in
shellac
or by painting as per coloring specifications.

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