Additive Manufacturing (3D Printing) Revision — Excellence, Achievement & Learning Limited Occupational Qualification

    1. Know the principles and applications of 3D printing technology ; 1.1 Describe types of 3D printing technology available and classifications of additive manufacturing processes ; 1.2 Describe benefits of 3D printing; 1.3 Identify industries using 3D printing technology; 1.4 Identify different types of materials used in 3D printing; 1.5 Describe limitations of 3D printing; 1.6 Describe safety considerations concerning the use of 3D printing technology; 1.7 State how object data can be manipulated within 3D printer software; 1.8 Describe how manipulating layer resolution, wall thickness, in-fill and print speed effects quality versus time and when this would be applicable; 1.9 Describe how larger objects can be produced by splitting objects into separate sections and files. 2. Know the preventive maintenance operations to be performed to maintain the 3D printer in a useable condition; 2.1 Describe safety considerations concerning the maintenance of 3D printing technology ; 2.2 Identify typical maintenance operations to be performed to maintain a 3D printer in a usable condition ; 2.3 State the importance of carrying out preventative maintenance operations. 3. Be able to prepare 3D printing technology; 3.1 Identify the print capacity and print resolution for the 3D printing technology used; 3.2 Create 3D data and produce a suitable file type for 3D printing; 3.3 Import a suitable file into 3D printing software; 3.4 Use 3D printer software to edit relevant parameters and settings for the 3D object being printed; 3.5 Create a build file following appropriate procedures; 3.6 Check the 3D printer is loaded with appropriate material and is ready to print. 4. Be able to use 3D printing technology; 4.1 Calculate the cost of printing the printed object ; 4.2 Check for error messages and readiness to print; 4.3 Start the 3D printing process ; 4.4 Monitor the status of the 3D printer at appropriate intervals during the build. 5. Be able to complete using 3D printing technology; 5.1 Identify specific safety precautions taken when using a 3D printing; 5.2 Remove the object safely from the printer; 5.3 Remove support material and clean the printed object safely; 5.4 Clean and reinstate the 3D printer ready for the next print session; 5.5 Check that the object meets pre-build expectations; 5.6 Describe finishing techniques and processes that can be applied to improve the final object.

    Exam Tips

    Common Mistakes

    Key Marking Points

    Additive Manufacturing (3D Printing)

    EXCELLENCE-ACHIEVEMENT-AND-LEARNING-LIMITED
    vocational

    Additive manufacturing (3D printing) involves understanding different technologies, materials, and software settings. Preparing, running, and finishing prints requires knowledge of maintenance and safety.

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    Learning Outcomes
    3
    Assessment Guidance
    3
    Key Skills
    1
    Key Terms
    4
    Assessment Criteria

    Assessment criteria

    EAL Level 2 Certificate In Engineering Technologies

    Topic Overview

    The EAL Level 2 Certificate in Engineering Technologies provides a foundational understanding of engineering principles and practices, covering key areas such as health and safety, materials science, mechanical and electrical principles, and engineering drawing. This qualification is designed for students who are beginning their journey into engineering, whether in manufacturing, maintenance, or design. It equips learners with the practical skills and theoretical knowledge needed to progress to further study or entry-level roles in the engineering sector.

    This certificate is part of the wider Engineering Technologies suite offered by Excellence, Achievement & Learning Limited (EAL), a vocational awarding organisation recognised in the UK. The qualification emphasises hands-on learning and real-world application, making it ideal for students who prefer practical, skills-based education. By completing this course, students develop a solid grounding in engineering fundamentals, which is essential for careers in fields such as mechanical engineering, electrical engineering, and manufacturing.

    Studying this qualification helps students understand how engineering impacts everyday life, from the design of simple tools to complex machinery. It also fosters problem-solving skills, attention to detail, and an appreciation for safety protocols. For students aiming to pursue advanced apprenticeships or A-levels in engineering, this certificate provides a strong stepping stone, ensuring they have the core competencies required for further technical education.

    Key Concepts

    Core ideas you must understand for this topic

    • Health and Safety Regulations: Understanding the Health and Safety at Work Act 1974, risk assessments, and personal protective equipment (PPE) is crucial for safe engineering practice.
    • Materials and Their Properties: Knowledge of ferrous and non-ferrous metals, polymers, ceramics, and composites, including their mechanical properties like tensile strength, hardness, and ductility.
    • Engineering Drawings and Symbols: Ability to interpret orthographic projections, isometric views, and standard symbols used in engineering diagrams.
    • Mechanical Principles: Concepts such as force, torque, stress, strain, and simple machines (levers, pulleys, gears) are fundamental to understanding how components work.
    • Electrical Principles: Basic understanding of voltage, current, resistance, Ohm's law, and simple circuit analysis, including series and parallel circuits.

    What You Need to Demonstrate

    Key skills and knowledge for this topic

    • Describes types of 3D printing and their applications.
    • Prepares 3D data and sets printer parameters correctly.
    • Monitors print process and performs post-processing safely.
    • Carries out preventive maintenance on the printer.

    Assessment Criteria

    Key criteria assessors look for in your portfolio

    • Describes types of 3D printing and their applications.
    • Prepares 3D data and sets printer parameters correctly.
    • Monitors print process and performs post-processing safely.
    • Carries out preventive maintenance on the printer.

    Assessment Guidance

    Guidance for achieving higher grades

    • 💡Understand the trade-off between layer height and print time.
    • 💡Practise slicing software to adjust infill and supports.
    • 💡Always check for nozzle clogs before starting a print.
    • 💡Always refer to specific regulations or standards (e.g., 'Health and Safety at Work Act 1974') in your answers to show detailed knowledge. Generic statements like 'follow safety rules' earn fewer marks.
    • 💡When answering questions about materials, use correct terminology such as 'tensile strength' or 'ductility' and give examples (e.g., 'copper is ductile, so it can be drawn into wires').
    • 💡For engineering drawing questions, practice sketching orthographic and isometric views. Examiners look for neatness, correct proportions, and proper use of hidden lines and centre lines.

    Common Mistakes

    Common errors to avoid in your coursework

    • Ignoring bed levelling, causing print adhesion failure.
    • Using incorrect filament type or temperature settings.
    • Neglecting to remove support material properly.
    • Misconception: 'Engineering is only about maths and physics.' Correction: While maths and physics are important, engineering also involves creativity, problem-solving, and practical skills like welding, machining, and circuit assembly.
    • Misconception: 'Safety is just common sense.' Correction: Safety in engineering requires specific knowledge of regulations, risk assessment procedures, and proper use of equipment. Common sense alone is not sufficient to prevent accidents.
    • Misconception: 'All materials are the same.' Correction: Different materials have unique properties that affect their use. For example, aluminium is lightweight but less strong than steel, and polymers may melt at high temperatures.

    Frequently Asked Questions

    Common questions students ask about this topic

    Before You Start

    Prior knowledge that will help with this topic

    • Basic numeracy and literacy skills at Level 1 or GCSE grade D/3 equivalent.
    • An interest in how things work and a willingness to engage in practical activities.
    • No prior engineering knowledge is required, but familiarity with simple tools and measurements is beneficial.

    Key Terminology

    Essential terms to know

    • 1. Know the principles and applications of 3D printing technology ; 1.1 Describe types of 3D printing technology available and classifications of additive manufacturing processes ; 1.2 Describe benefits of 3D printing; 1.3 Identify industries using 3D printing technology; 1.4 Identify different types of materials used in 3D printing; 1.5 Describe limitations of 3D printing; 1.6 Describe safety considerations concerning the use of 3D printing technology; 1.7 State how object data can be manipulated within 3D printer software; 1.8 Describe how manipulating layer resolution, wall thickness, in-fill and print speed effects quality versus time and when this would be applicable; 1.9 Describe how larger objects can be produced by splitting objects into separate sections and files. 2. Know the preventive maintenance operations to be performed to maintain the 3D printer in a useable condition; 2.1 Describe safety considerations concerning the maintenance of 3D printing technology ; 2.2 Identify typical maintenance operations to be performed to maintain a 3D printer in a usable condition ; 2.3 State the importance of carrying out preventative maintenance operations. 3. Be able to prepare 3D printing technology; 3.1 Identify the print capacity and print resolution for the 3D printing technology used; 3.2 Create 3D data and produce a suitable file type for 3D printing; 3.3 Import a suitable file into 3D printing software; 3.4 Use 3D printer software to edit relevant parameters and settings for the 3D object being printed; 3.5 Create a build file following appropriate procedures; 3.6 Check the 3D printer is loaded with appropriate material and is ready to print. 4. Be able to use 3D printing technology; 4.1 Calculate the cost of printing the printed object ; 4.2 Check for error messages and readiness to print; 4.3 Start the 3D printing process ; 4.4 Monitor the status of the 3D printer at appropriate intervals during the build. 5. Be able to complete using 3D printing technology; 5.1 Identify specific safety precautions taken when using a 3D printing; 5.2 Remove the object safely from the printer; 5.3 Remove support material and clean the printed object safely; 5.4 Clean and reinstate the 3D printer ready for the next print session; 5.5 Check that the object meets pre-build expectations; 5.6 Describe finishing techniques and processes that can be applied to improve the final object.

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