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The Averages section of RJG's Maths for Moulders course focuses on how to calculate averages that help moulders understand what is typical in a process, and possibly lead to making well-informed adjustments that lead to consistent, quality parts. The lessons feature practical examples related to plastic injection moulding, opportunities for practice, and an assessment. Read more

The Distance, Speed, & Time section of RJG's Maths for Moulders course uses a formula triangle to calculate these critical values that are often used to determine machine performance and maintain part quality. The lessons feature practical examples related to plastic injection moulding, opportunities for practice, and an assessment. Read more

The Force, Pressure, & Area unit of RJG's Maths for Moulders guides students to use a formula triangle to calculate these critical factors of injection moulding processes. The resulting figures can help moulders understand their machines' capabilities, matching the right moulds with the right machines while avoiding part defects and mould or machine damage. The lessons feature practical examples related to plastic injection moulding, opportunities for practice, and an assessment. Suggested prerequisite: Maths for Moulders: Area (Unit 1) Read more

The Percent Change and Variation unit of RJG's Maths for Moulders course teaches the formulas used to calculate percent change and percent variation, which can be used when building, optimizing, or troubleshooting an injection moulding process. The lessons feature practical examples related to plastic injection moulding, opportunities for practice, and an assessment. Suggested Prerequisite Maths for Moulders: Averages (Unit 6) Read more

The Percent Usage unit of RJG's Maths for Moulders course focuses on calculating percent usage using a formula that is frequently used in the injection moulding industry to help ensure that mould requirements do not exceed the capability of the machine. The lessons feature practical examples related to plastic injection moulding, opportunities for practice, and an assessment. Suggested prerequisite: Maths for Moulders: Volume (Unit 2) Read more

The Ratios unit of RJG's Maths for Moulders course defines ratios and how they are used in the plastic injection moulding industry. Specifically, formulas are taught to calculate intensification ratios, compression ratios, and screw L/D ratios. The lessons feature practical examples related to plastic injection moulding, opportunities for practice, and an assessment. Suggested prerequisite: Maths for Moulders: Area (Unit 1) Read more