The circumference of the product: plastic bottle cap examples have D = 3 cm = 1.18 inchthe height of the lid: h = 1.5 cm = 0.59 inchesSo, the circumference of the product: A = ((2 x 3.14 x 0.59) + 0.59)) x 2 = 8.5904 inches-Number of exhaust trench X: have a = 0.3 X. A X = 0.3 A/So a = 0.3 x 8.5904/0.5002 = 5.15 → Choose X = 6-Layout of gas drainage grooves: 6 exhaust trench will be arranged on thethe molecular mould each track separated by 60°.
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