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    CDR Sample for Engineering Professionals (nec)

    CDR sample for Engineering Professionals (NEC) includes all the required reports such Curriculum Vitae (CV), Continuing Professional Development (CPD), three Career Episodes (CE), Summary Statement.The content of the CDR Report Samples is given below:

    Curriculum Vitae (CV):

    Resume on the basis of a professional template.

    Continuing Professional Development (CPD):

    The sample of CPD clarifies the Engineering Knowledge of the applicant – 350 words.

    Engineering Professionals Career Episode Sample 1:

    “Design and Fabrication of the Screening Printing Machine” – 2020 words

    Professionals Career Episode Sample 2:

    “Design and Development of Vacuum Filling Machine” – 2900 words

    Engineering Professionals Career Episode Sample 3:

    “Design, Manufacturing and Testing of Vibrator Feeder Machine” – 2150 words

    Engineering Professionals Summary Statement Sample:

    “Detail explanation of all the competency element” – 2000 words.

    Engineering Professional NEC Career Episode 1

    Project Name: Design and Fabrication of the Screening Printing Machine

    Project Type: Work Based Career Episode

    Demographics:When author used to work for the “company name”, Sri Lanka, as a Design Engineer, he worked on this project. The details of his work while working for this project is described in this career episode. It was a company based project which was conducted with the supervision of the “supervisor name “of the company. The project began on 1st May 2016 and ended on 30th August 2016.

    Engineering Activities of Engineering Professional NEC

    1. To carry out the brief literature review of the screen printing machine, its working principle, components involved and form methodology on that basis.
    2. To select the best technique for screen printing and decided to use automation on the technique by introducing motors, actuators and sensors.
    3. To hold a meeting with clients to understand their requirement of machine and form design concepts.
    4. To conduct necessary calculations for different machine requirements.
    5. To select different items such as caviar beads, cracking ink, discharge ink, glitter, metallic ink, photo emulsions, squeegee etc.
    6. Furthermore, to purchase the materials from appropriate vendor by conducting an analysis of their previous works and the quality of products offered at a given price.
    7. To develop a Solid Works model of the parts and assembly of the components involved.
    8. To fabricate the model in the workshop according to design and calculations.
    9. To conduct a final test to analyze the final product and make the necessary corrections and document the final data.
    10. To submit the final report based on the findings to the supervisor for approval and orated the findings to the company staff to inform them about the completion of the project.

    Problems & Solutions

    1. Problem 1 Career Episode 1 and its solution

    One of the problems author found during the repeated testing and analysis phase was the presence of dust, creating the losses of print on the surface as well as the screen. As he used an automated process to apply ink, the ink was exposed to the environment creating the chances of dust. Also, the handling of material in the company by workers were inappropriate and incautious. Due to the exposure of the ink to the environment, the process showed several losses of prints on the screen as the ink did not apply properly on the t-shirt. It was especially seen when printing fine drawings. This was a serious problem that had to be mitigated. He held a meeting with the supervisor and experts to discuss the issue with them. He found that the damaged prints in the screen could be removed using the screen photo emulsion remover. This not reduced the wastage, but also helped to reuse it. He applied the screen photo emulsion remover to clean the surface and reuse the screen. After that, the hose was used to clean the screen to make it new and repeat the process again. Also, multiple images could be printed using the same screen, making it versatile. Hence, no wastage of screen material was incurred, and it could be used again and again for a similar purpose. He also set guidelines for the workers to use clean substance and transferred the machine used in an isolated room to protect it from additional dust.

    2. Problem 2 Career Episode 1 and its solution

    Next problem that incurred in the project was the gap between the spreader and the squeegee was large. The squeegee was not able to cover all the screen making the loss of design in some part. He found the problem during the testing of the printing, especially for the large picture. This was a design problem as he had not looked for the cases of a larger picture where all the screen was utilized for the process. This problem limited the use of the printer to print smaller pictures only in the t-shirt making it less effective. This was really undesired for the machine. In order to solve the problem, he discussed the problem with the team working together along with the supervisor. He found the problem was with the mechanism used for the application of the spreader. Instead of using the spreader only one direction, he used slider crank mechanism to make the spreader move to and fro so that the spreader covered a larger area, and the gap between the spreader and squeegee was minimized. Thus, an alternative approach solved the problem making the print better and consistent.

    Engineering Professional NEC Career Episode 2

    Project Name: Design and Development of Vacuum Filling Machine

    Project Type: Work Based Career Episode

    Demographics: This project accentuates author works performed during his work tenure at “company name”). The project was conducted at 345 Mahalwarawa, Pannipitiya Sri Lanka. He initiated working on this project from October 1st, 2015 and completed on April 10th, 2016.

    Engineering Activities of Engineering Professional NEC

    1. To conduct comprehensive research on the design requirement of the liquid filling machine.
    2. To perform necessary calculations for different machine requirements such as tank diameter, vacuum pump pressure etc.
    3. To conduct the feasibility study by drawing different mechanical designs and discussing with the design team.
    4. To develop the design of the individual parts of the machine as per the specifications and assemble them using designing software such as AutoCAD and Solid
    5. To make the drawings of the vacuum filling machine demonstrating it’s isometric, front, top and side views and dimensioned all the parts of the machine.
    6. To assist in the prototype manufacturing process and inspected the manufactured components during the test.
    7. To instruct the technician during the grinding of the edges of the machine such that all the sharp corners are well rounded.
    8. To strictly forbade grinding at the internal surface of the machine since it was to be used for high vacuum applications during the perfume manufacturing process.
    9. To develop the PLC programming for the sequential operation of the liquid filling machine.
    10. To design the vacuum filling machine such that most of the components are operated by electric power rather than consuming non-renewable fuels, which creates less impact on the environment.

    Problems & Solutions

    1. Problem 1 Career Episode 2 and its solution

    During testing of the vacuum filling machine, author encountered a problem regarding unnecessary vibration from the vacuum pump. This problem resulted in inefficient operation of the machine and loss of power. Hence, to resolve this problem, he discussed it with his project mentor and team members. From the discussion, it was concluded to use thick rubber bushing at the base of the vacuum pump. Then, he added the rubber bushing at the base of the pump and conducted the test again. During this test, the vibration produced by the machine was extenuated to a great extent. Therefore, he was able to enhance the overall efficiency of the machine.

    2. Problem 2 Career Episode 2 and its solution

    Also, while testing the machine, he observed that there was the liquid was flowing back into the container after the bottles were filled. This problem increased the time taken to fill the next bottle as the liquid has to flow back through the pipes from the customer container into the bottle again. It greatly reduced the number of bottles the machine can fill during a certain period of time. Hence, to solve this problem, he reviewed several existing literature related to the working of the vacuum filling machine. From the study, he found that using a valve to inhibit the revere flow could resolve the problem. Hence, he installed a custom built reverse flow inhibiting valve, especially for the machine which hindered the backflow of the liquid and propelled in increasing the speed of the machine.

    3. Problem 3 Career Episode 2 and its solution

    Thirdly, he faced the difficulty while filling the plastic bottles in the vacuum filling machine. The machine was intended to fill both glass and plastic bottles. Although it has no problem with filling glass bottles during filling of plastic bottles, it got deformed due to the suction pressure. To resolve the problem, he consulted with his project supervisor, and he suggested him to build an especial apparatus to hold the plastic bottles in shape. Hence, he worked on designing and building a unique apparatus for holding the plastic bottles in shape while the bottle is being filled. After installing the apparatus in the production line, the problem was resolved.

    Engineering Professional NEC Career Episode 3

    Project Name: Design, Manufacturing and Testing of Vibrator Feeder Machine

    Project Type: Work Based Career Episode

    Demographics:Author fulfilled this project from the organization named as “company Name” which is located in 345, Mahalwarawa, Pannipitiya, Sri Lanka. He initiated this project on 5th October 2016 and accomplished it on 5th January 2017. It took around three months to finish the project completely. The detail explanation about the designing and manufacturing of vibration feeder is given in this particular episode. The project was supervised and monitored by a senior engineer

    Engineering Activities of Engineering Professional NEC

    1. As per the customer requirements, to conducted site survey to obtain information about the different types of powder filling methods, there principles and selected the best suited method for the process i.e. vibration feeder.
    2. To emerge to generate concept for the project and hence, generate methodology for the project to understand the basic work flow of the particular project on vibration feeder.
    3. To start to solve the necessary calculations for the different machine requirement and select the required materials for the machine using the information obtained from the site survey.
    4. To carry out expedience study by drawing different mechanical designs and started the main designing using solid works and auto cad designing software and he assisted during the manufacturing of a machine prototype.
    5. To generate machine controlling system using PLC programming and performed the testing process of the machine.
    6. To carry out the procedural review of each phase and at last prepared result from the project.

    Problems & Solutions

     Problem 1 Career episode 3 and its solution

    He found that, vibrating pipes were not vibrating freely. The vibration was very stiff which slowed down the speed of the powder flow to the weighing containers. This might had happened due to the high thickness and the width of the plates which were holding the vibrating plates. He inspected the problem for certain time period and finally made a decision to reduce the thickness and the width of the plates which were holding the vibrating pipes. Just after the reduction in the thickness and the width of the plates which were holding the vibrating pipes, the speed of the powder flow to the weighing container increased at the same level I was expecting.

     Problem 2 Career episode 3 and its solution

    After building the prototype of the machine, I found that the accuracy of the machine was very low. As the accuracy was very low, I decided to install a second set of small vibrating pipes to feed the final few milligrams to the weighing container and this helped me to increase the accuracy of the machine. I also found error in the mechanism that was developed to stop the powder getting stuck in the powder holding tank and it was not effective. So to overcome the problem, I used an electromagnetic vibrator to vibrate the tank and stopped the powder getting stuck in the powder holding tank.

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