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1*1     Mold Design Checklist
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The following is a good checklist for reviewing Mold Drawings


Preliminary Drawing Checklist Items:
1*1General layout
1*1"A" side plan
1*1"B" side plan
1*1Front Section
1*1Side Section
1*1Title block is completely filled out on all drawings
1*1Abbreviated BOM with ordering information for the Mold Base and primary Steels
1*1Cavity Location
1*1Parting line locations (Acceptable to customer)
1*1Ejector Pin Layout (Acceptable to customer)
1*1Waterline Layout
1*1Balanced Runner layout
1*1Gate type, and size specified
1*1Side Action types & locations are shown
1*1Concept of Tool operation
1*1"O"  & "R" Dimensions noted
1*1Note "Top of mold" & "Operator Side"
1*1Will the tool fit in the correct press size
1*1Knock out Locations
1*1Support pillar layout

*  Typically, approval of the Preliminary designs approves our design concept.  Customer approval means that we can proceed with the Final Designs, that we can order the necessary materials, and that we can begin rough machining of material.  Sometimes, especially on "rush" jobs, customers approve finish machining based on the preliminary design.


Final Drawing Checklist Items:
1*1All Preliminary Mold Drawings Requirements completed
1*1Full Bill of Materials, Base Information, stamping notes, ejector information, special notes
1*1Detailed views of every non-standard component.
1*1Enough views, sections, iso views exist to adequately show part detail
1*1All details are labeled with the detail number, name, material type, number required, Hardness, and surface finish.
1*1Check All water lines for interference, including clearance for jiffy-plugs
1*1Check Guide Pin length and clearance
1*1Spring loads calculated & checked
1*1Drawings appear to be adequately dimensioned
1*1Critical Dimensions are noted
1*1All "fit" areas are specified for each insert, side action, and core.
1*1All draft is specified for cavity area, core pins, ribs, etc.
1*1Check all side action angles and travel
1*1Check for bad steel conditions (sharp edges, thin sections, too little shutoff, too little angle)
1*1A & B Plan assembly views have been compared
1*1All details from the assembly and plan views have been compared to the detail sheets.
1*1All surface finishes are specified
1*1Drawings are checked to the "Mold Info Sheet".

*  Typically, by approving the Final designs the customer certifies that the drawings are dimensionally accurate, that critical areas have been noted, and that we can proceed with final machining, fit, and finishing.





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