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MAKER: Converting the Sketch of an Artifact into a Composite Bezier Curve and Producing it in the Boxford Milling Machine

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Conference

2015 ASEE Annual Conference & Exposition

Location

Seattle, Washington

Publication Date

June 14, 2015

Start Date

June 14, 2015

End Date

June 17, 2015

ISBN

978-0-692-50180-1

ISSN

2153-5965

Conference Session

Make It!

Tagged Division

Manufacturing

Tagged Topic

Diversity

Page Count

16

Page Numbers

26.1115.1 - 26.1115.16

DOI

10.18260/p.24452

Permanent URL

https://peer.asee.org/24452

Download Count

72

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Paper Authors

biography

Sangarappillai Sivaloganathan United Arab Emirates University

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Dr Sangarappillai Sivaloganathan – Siva is a Sri Lankan by birth and a citizen of the United Kingdom. His experience in Sri Lanka included a year’s post-graduate apprenticeship in the manufacturing shops of the Government Railway and nine years in the cement industry. He graduated as a Mechanical Engineer from University of Sri Lanka, and obtained his Master's from the University of Aston and Ph.D. from City University of London, both in the UK. He started his career in the UK as the Senior Research Assistant at the SERC Engineering Design Center. He joined Brunel University in 1995 and spent 18 years there before joining United Arab Emirates University in August 2011. While at Brunel he worked with many British industries. Dr. Sivaloganathan is a keen researcher in design and was the convener of the Engineering Design Conferences in 1998 and 2000. He has published more than 75 papers in reputable journals and conference proceedings.

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biography

Hayder Zulafqar Ali University Instructor

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Hayder Ali is an instructor in the Mechanical Engineering Department at United Arab Emirates University (UAEU). Before joining UAEU, he received training on a long term technology transfer (plastic mold making) project between government of Pakistan and government of Japan. He holds a master's degree in Mechatronics Engineering and a bachelor's in Mechanical Engineering, both from the University of Engineering and Technology, Lahore, Pakistan. He has extensive teaching and industrial experience.

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biography

Iman Abdulwaheed United Arab Emirates University

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Iman Abdulwaheed graduated from United Emirates Emirates University in February in 2014 with a mechanical engineering degree. While a student, she was an active member and office holder in ASME, ASAA and Robotics and Aerospace clubs, and worked with faculty members as an undergraduate researcher. She co-oauthored a paper that was presented at the International Renewable Energy Conference in 2014. She won second place in the Think Science Competition in 2014 and fifth place in the Tamaiaz Falak Tayyeb Competition in 2015.

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biography

Sayeda Abboud Al Ameri United Arab Emirates University

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Ms. Sayeda Abboud Al Ameri graduated from United Arab Emirates University in February 2014 with a mechanical engineering degree. While a student, she was an active member and office holder in ASME and Robotics and Aerospace clubs. She worked with several faculty members as an undergraduate researcher. She has co-authored a paper which was presented in the International Renewable Energy Conference in 2014. She won the second place in Think Science Competition in 2014 and the fifth place in Tamaiaz Falak Tayyeb Competition in 2015. Sayeda is undergoing advanced training at AMMROC (Advanced Military Maintenance Overhaul Center) in the U.A.E.

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Abstract

MAKER: Converting the Sketch of an Artefact into a Composite Bezier Curve and Producing it in the Boxford Milling MachineIntroduction to Computer Aided Manufacturing Course, is taught to the SeniorMechanical Engineering students at X university. Two of its course outcomes are (i)Students   will   be   able   to   apply   the   knowledge   of   mathematics   and   engineering  science  to  model  engineering  shapes  using  parametric  curves  and  (ii)  Students  are  able  to  integrate  different  domain  knowledge  to  generate,  evaluate,  and  implement  part  programming. This project is aimed at these two outcomes. As part of the courseBezier curves are taught and students become familiar with the analytical part ofcomposite Bezier curves. On the manufacturing side, students start with manualprogramming to understand and interpret codes and then CAM packages areintroduced. Practical exercises are given in the class to enrich the learning experiencelinking the theory and its implementation in practice. It is often a challenge to sketchsomething on a paper and convert it and as a CAD profile to generate NC code for itsmanufacture. This paper and artefact demonstrates such a conversion and manufacturecarried out by the students as the term project. The students worked in a group of fourand were given an outline sketch as given in Figure 1 showing the different featuresthat could go into the product. They were asked to come up with conceptual sketchesand choose one. The chosen concept was drawn on a graph paper to the full scale. Theresulting sketch (cross section of the artefact) was then broken into curve segmentsand the individual segments were modelled with due consideration for the boundaryconditions. Two approaches were taken to model the curves. In the first approachCorelDraw software was used for modelling and in the second approach the curveswere modelled mathematically. The result from this design part was a collection ofcurve segments with starting and finishing points and their control points. TheBoxford Milling machine is a bench type machine for small jobs done in plastic orAluminium. Curves are modelled in it as Bezier curves and control points and startingand finishing points are the required inputs. The resulting artefact is shown in Figure2. The student participation was excellent and every group completed the project.     Tower for University Logo U Hole for a clock Insert Dia 37.5 mm E UA Department NameOverallHeight45 mm Overall Width Not more than 50 mm Overall Length 115 mm   Figure  1         Figure  2  

Sivaloganathan, S., & Ali, H. Z., & Abdulwaheed, I., & Al Ameri, S. A. (2015, June), MAKER: Converting the Sketch of an Artifact into a Composite Bezier Curve and Producing it in the Boxford Milling Machine Paper presented at 2015 ASEE Annual Conference & Exposition, Seattle, Washington. 10.18260/p.24452

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