Mould Design – Online

Dates: To be verified.

Duration: The course is run over 8 sessions, each of 3 hour duration, with short breaks.

Location: Online

Accreditation: Essentials of Mould Design

Full Fee: €1095

Course code: 5N4317

Programme overview

This newly re-vamped program covers the basics of plastic injection mould design and is intended to provide a platform for those wishing to undertake mould design. The course will assist those engaged in the art of machine setting with a greater understanding of the influence the mould tool has on part quality, output volume and process efficiency. This course is an essential foundation for setters, part designers and mould designers working or wishing to work in the injection moulding industry. The program assumes no prior knowledge or ability to design an injection mould tool.


The schedule for the delivery of each session is as follows:


Session Day Date Time
Session 1 of 8 Thursday 14 December 09.30 – 13.00
Session 2 of 8 Friday 15 December 09.30 – 13.00
Session 3 of 8 Thursday 11 January 09.30 – 13.00
Session 4 of 8 Friday 12 January 09.30 – 13.00
Session 5 of 8 Thursday 18 January 09.30 – 13.00
Session 6 of 8 Friday 19 January 09.30 – 13.00
Session 7 of 8 Thursday 25 January 09.30 – 13.00
Session 8 of 8 Friday 26 January 09.30 – 13.00 (subject to change)


*Please note CAD software is not required for this course. Recorded lectures will be available for a limited period of time after each session.

Who Should Attend

Injection Moulding Technicians, Engineers, and Management who have a responsibility for ordering, modifying or replacing injection moulds will gain most benefit from this course. A better understanding of mould design theory will greatly assist in obtaining optimised moulds and reducing mould commissioning times.

Learning Outcomes

Upon completion, students will be able to:

  • Understand the design and function of a 2-Plate and a 3-Plate mould.
  • Be able to select a gate to production requirement.
  • Be able to design a mould cooling system, a basic mould feed system and a mould ejection system.
  • Be able to combine LOI3-6 into a mould design.
  • Be able to undertake a basic appraisal of a new injection moulded component.
  • Be able to differentiate between a part design fault, a mould design fault, a material fault and a processing defect.

Course Content

This course will cover a range of topics (with more to be added shortly) including:

  • The Injection Moulding Machine and its Influence on Mould design
  • The 2-Plate mould
  • Exercise: Design the layout of a 2-Plate mould
  • Polymer melt flow
  • Gating and Feeding
  • Cooling
  • Ejection techniques
  • Estimation of ejection force
  • The 3-Plate mould
  • Stack Moulds
  • Undercut Moulds
  • Exercise: Design the layout of a 3-Plate mould
  • Prototype moulds and techniques
  • Mould tool construction materials
  • Exercise: Calculation of mould plate deflection
  • Runnerless moulds
  • Exercise: Design and Layout of a Runnerless mould
  • Standard mould parts
  • Plastic product design for injection moulding
  • Injection mould fault appraisal and analysis
  • Exercise: Undertake moulded fault appraisal
  • Tutorial covering the assignment
  • 1-Hour examination

Trainer Profile

Peter Cracknell has over 40 years experience in the Plastics Industry. He has served his time as an injection mould toolmaker (Metal Box), production engineer (Metal Box), senior production engineer (BOC), senior lecturer (LSPT), academic leader in polymer engineering (LSPT), Consulting engineer.

Expertise: Injection moulded part and mould tool design, plastic materials, processing trouble shooting,  lecturing (30 years), BETC assessor for NVQ in Polymer Engineering, expert witness (30 years experience).

Qualifications: HNC Mechanical & Prod Eng, GradPRI – ALSPT First Class hons. C&G Risk Assessment, BTEC NVQ Assessor

Assessment & Accreditation

This programme is a QQI component (minor) award, certified at Level 5 on the national framework of qualifications – see  and is an elective component of major award  5M3080 – Plastics Injection Moulding.

The assessment is comprised of a written exam on the last day of the course plus an assignment that is due to be submitted 4- 6 weeks after the end of the course. An exact date and submission link is given to each course participant, with full guidance and support given by the Trainer. Trainees generally complete this assignment in their own time, over the period allocated.

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