Cavity and Core insert Creation
With the definition of the parting plane and all necessary shut-offs,the core insert and cavity insert have been completely separated.To create the cavity and core inserts,the length,width,and height of the inserts must be defined.

All of these requirements suggest making the core and cavity inserts as large as possible.For smaller molded parts,increasing the sizing the core and cavity inserts may have little added cost. 

However,the cost of larger core and cavity inserts can become excessive with increases in the number of cavities or molded part size.

The mold layout design assumes that the number of mold cavities and type of mold has been determined.To develop the mold layout, the mold opening direction and the location of the parting plane are first determined. Then, the length, width,and height of the core and cavity inserts are chosen. Afterwards,a mold base is selected and the inserts are placed in as simple and compact a layout as possible.It is important to develop a good mold layout design since later analysis assumes this layout design and these dimensions are quite expensive to change once the mold making process has begun.

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