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Sec 4 Designing Plastic - All Seals Inc
allsealsinc.comduring the molding process, square corners tend to be weaker than rounded corners. To ensure dimensional stability, we recommend a minimum radius of .010 (.254mm). Holes that are parallel to the mold parting line call for the use of a sliding core that automatically retracts from the part as the mold opens. The use of sliding cores adds to the cost