scholarly journals Does Access to Rapid Prototyping Enhance Student Vision-ization?

2015 ◽  
Author(s):  
Thomas E. Doyle
Keyword(s):  
Rapid Prototyping ◽  
Rapid Change ◽  
Primary Objective ◽  
Fundamental Question ◽  
Learning Objectives ◽  
First Year ◽  
Functional Design ◽  
Technical Design ◽  
Design Function ◽  
3D Printers

At its core, engineering technical design is the process of taking a concept to creation. In order to achievesuccessful technical design a student must combine their idea or vision of a solution (function) with a visualization of thepart/assembly (form) -- referred to henceforth as vision-ization. Teaching technical design to a large first-year class ofengineering students presents a number of challenges, but perhaps the most significant is the rapid change of the toolsused in engineering technical design. To be clear, the tools themselves are not the challenge, as the students generallyhave no trouble mastering the tools. The challenge lies in the teaching and ultimately the learning objectives; at aUniversity level the fundamental question is what pedagogical benefit does a tool provide without the knowledge to applyit? As the tools have advanced, the students (and the instructors) find themselves further from the design process resultingin course topics perceived as disconnected or without relevance. In 2006 McMaster University's first-year engineeringprogram departed from the traditional method of teaching engineering design, which was heavily focussed on form, toestablish design function as the primary objective of the course. With a yearly enrolment near 1000 students, thescalability of teaching and evaluating design function was implemented using a customized simulation and visualizationtool. The simulation was extended to the logical use of rapid prototyping machines (3D-printers) for physical creation andtesting. This paper will present the author's initial analysis of the link between pure visualization, applied visualization,and success in functional design via rapid prototyping..

The Development Stages of Rear Upright for Formula Car

2004 ◽  
Author(s):  
Ismail Fidan ◽  
Adam McGough ◽  
Jeff Foote
Keyword(s):  
Rapid Prototyping ◽  
Virtual Manufacturing ◽  
Small Scale ◽  
First Year ◽  
Design Tools ◽  
Golden Eagle ◽  
Development Stages ◽  
Formula Sae ◽  
Race Car ◽  
Design Competition

Formula SAE (FSAE) is a design competition organized each year by the Society of Automotive Engineers (SAE). The objective of the competition is to bring the best and brightest future engineers from each participating school to present a small scale race car. Although this sounds like a relatively simple concept, the actual execution is rather challenging and rewarding for the team. For almost three years Tennessee Tech University (TTU) has had a FSAE team. The first year was a planning year, so Tennessee Tech University has participated in the competition for the last two years. Both years have been extreme learning experiences since TTU was not prepared for the level of competition brought by participating schools. However TTU FSAE team is beginning to implement modern design tools such as FEA, Virtual Manufacturing, and Rapid Prototyping to help streamline the design efforts so that one day Golden Eagle FSAE will be one of the top competing teams. In this publication, authors will report on one Golden Eagle FSAE component (the rear upright) development stages and its accomplishments.

Transcripts of a Medical Education in Humanities Module

2012 ◽  
Vol 2 (3) ◽  
pp. 63-76 ◽  
Author(s):  
P. Ravi Shankar ◽  
Kundan Kr. Singh ◽  
Ajaya Dhakal ◽  
Arati Shakya ◽  
Rano M. Piryani
Keyword(s):  
Medical Education ◽  
Small Groups ◽  
Medical Humanities ◽  
English Language ◽  
Learning Objectives ◽  
First Year ◽  
First Year Students ◽  
Student Groups ◽  
Medical College

A medical humanities (MH) module has been conducted for first year students at KIST Medical College, Lalitpur, Nepal for the last four years. The students are divided into small groups and case scenarios, role-plays, paintings, and activities are used to explore MH. The module for the fourth batch of students was conducted from December 2011 to March 2012. In this article the authors provide a brief overview of the MH module, Sparshanam and the learning objectives of different sessions. They provide transcripts of some of the role plays done during the module. The role plays were conducted in Nepali with the help and guidance of the facilitators and the written transcripts in English language were provided by different student groups.

scholarly journals The construction of a normative scale of locus of control

2005 ◽  
Vol 31 (3) ◽  
Author(s):  
Johann M. Schepers
Keyword(s):  
Locus Of Control ◽  
Internal Control ◽  
Attribution Theory ◽  
Social Learning Theory ◽  
Primary Objective ◽  
External Control ◽  
First Year ◽  
Cognitive Correlates ◽  
Personality Correlates ◽  
First Year University

The primary objective of the study was to construct a normative scale of locus of control for use with students and adults. A corollary of the study was to establish the personality, interest and cognitive correlates of locus of control. Conceptually the instrument is based on attribution theory and on social learning theory. The first edition of the Locus of Control Inventory (LCI) was applied to 356 first-year university students during 1994. A factor analysis of the 65 items of the inventory yielded three factors. The factors were interpreted as Autonomy, Internal Control and External Control. Three scales, corresponding to the three factors, were constructed, and yielded reliability coefficients of 0,80; 0,77 and 0,81 respectively. Following this the cognitive, interest and personality correlates of the LCI were determined. The implications of the findings are discussed. Opsomming Die hoofdoel van die studie was die konstruksie van ’n normatiewe skaal van lokus van beheer vir gebruik met studente en volwassenes. ’n Newe-doelwit van die studie was om die persoonlikheids-, belangstellings- en kognitiewe korrelate van lokus van beheer te bepaal. Konseptueel is die instrument op attribusieteorie en sosiale-leerteorie gebaseer. Die eerste-uitgawe van die Lokus van Beheervraelys (LvB) is op 356 eerstejaaruniversiteitstudente toegepas gedurende 1994. ’n Faktorontleding van die 65 items van die vraelys is gedoen en het drie faktore opgelewer. Die faktore is as Outonomie, Interne Beheer en Eksterne Beheer geïnterpreteer. Voorts is drie skale wat ooreenstem met die drie faktore, gekonstrueer en het betroubaarhede van 0,80; 0,77 en 0,81, onderskeidelik, opgelewer. Vervolgens is die kognitiewe, belangstellings- en persoonlikheidskorrelate van die LvB bepaal. Die implikasies van die bevindinge word bespreek.

Three-Dimensional Accuracy Evaluation of Two Additive Manufacturing Processes in the Production of Dental Models

2017 ◽  
Vol 752 ◽  
pp. 119-125 ◽  
Author(s):  
Alexandru Victor Burde ◽  
Cristina Gasparik ◽  
Sorana Baciu ◽  
Marius Manole ◽  
Diana Dudea ◽  
...  
Keyword(s):  
Rapid Prototyping ◽  
Fused Deposition Modeling ◽  
Three Dimensional ◽  
Digital Data ◽  
Accuracy Evaluation ◽  
Cad Model ◽  
3D Scanner ◽  
Fused Deposition ◽  
3D Printers ◽  
Dental Models

In the current orthodontic and prosthodontics practice, study models made of plaster are being used to provide a three-dimensional view of the patient’s occlusion and allow the clinician to analyze, diagnose, or monitor anomalies. With the introduction of intraoral and extra oral digital impressions, it is now possible to obtain digital study models of the patients’ dental arches. Digital models can be obtained in a physical hardcopy via 3D printing or rapid prototyping. Although, professional 3D printers require a high initial set-up cost, low cost 3D printers can provide similar quality products. The aim of this study is to investigate the accuracy of physical dental models reconstructed from digital data by two rapid prototyping techniques. For this purpose twenty mandibular and maxillary conventional plaster models from randomly chosen subjects were selected and served as the gold standard. The casts were digitized using a 3D scanner and .stl surface models were acquired; the virtual model was adjusted for reconstruction using dedicated software, thus obtaining the CAD model of the casts. The CAD models were reconstructed using a 3D fused deposition modeling (FDM) printer, a RepRap FDM printer and an inverted stereolithography printer. The reconstructed models were digitized using a laboratory 3D scanner and the resulting Mesh datasets were compared with the CAD model using inspection software. The mean systematic differences for the 3D comparison of the reconstructed models were 0.207 mm for the stereolithography models, 0.156 mm for the FDM models, and 0.128 mm for the RepRap models. Although a technology proved the ability to manufacture a dental model with accentuated morphology, the results demonstrate that replicas of plaster casts are influenced by problems linked to the size of the detail to be reproduced, which is often similar to or finer than the fabrication layer.

Designing a Service-Learning Design Project for a First-Year Engineering Course

2009 ◽  
Author(s):  
Christopher B. Williams ◽  
Janis P. Terpenny ◽  
Richard M. Goff
Keyword(s):  
Service Learning ◽  
Resource Constraints ◽  
Learning Objectives ◽  
First Year ◽  
First Year Students ◽  
Design Project ◽  
For Profit ◽  
Structured Design ◽  
Detail Design ◽  
Conceptual Design Phase

The creation of an appropriate, meaningful design experience for a first-year engineering design course is challenging as the instructor must balance resource constraints with broad learning objectives and a diverse, and often very large, enrollment. In this paper, the authors present the task of developing a design project for a first-year engineering course as a problem of design. Following a structured design process, the authors articulate the requirements for a successful first-year design project including: learning objectives that are appropriate for a multi-disciplinary group of first-year students and common budgetary and time constraints. Several project alternatives are generated and evaluated in a conceptual design phase. In their description of the embodiment and detail design phases, the authors present the implementation of the selected project concept: ROXIE (“Real Outreach eXperiences In Engineering”). The ROXIE project, a service-learning themed project, tasks first-year students with serving as design consultants to not-for-profit community partners. Through this partnership, students are able to practice principles and tools of design methodology and project management. Preliminary survey data and excerpts of student reflection essays are provided as a means of supporting the instructors’ project selection.

scholarly journals Visualization Performance and Rapid Prototyping in First Year Design

2013 ◽  
Author(s):  
Thomas E. Doyle ◽  
David Musson ◽  
Jon-Michael Booth
Keyword(s):  
Rapid Prototyping ◽  
Real Time ◽  
Outcome Expectations ◽  
Solid Modeling ◽  
First Year ◽  
Real Time Simulation ◽  
Time Simulation ◽  
Simulation Based Design ◽  
Modeling Software ◽  
And Function

Visualization literature suggests that solid-modeling software tools improve visualization skills as a result of interaction with the model. As an extension of these findings, the authors proposed that product dissection and real-time simulation of the model should further improve visualization. Our prior study examined visualization performance using solid-modeling in three teaching modalities of a Freshmen Design and Graphics course: 1) Traditional, 2) Project Based Dissection, and 3) Simulation Based Design. The first and second modalities focused assessment on the part/assembly form, whereas the third modality transitioned the outcome expectations to understanding and function of mechanism design. Our comparison between teaching modalities revealed an unexpected bifurcation of results where the top performing group from several years of data demonstrated slight performance improvement with consistent variance, while the lower performing group decreased in performance with substantial increase in variance. It was proposed that the abstract nature of mentally reconstructing a solid-model or real- time simulation was a potential factor in the lower performing group. In September 2013 the author implemented rapid prototyping capability as pilot study in improving the traditional Design & Graphics course. This paper will discuss the implementation of rapid prototyping and present the preliminary results on visualization performance. This paper will be of interest to educators interested in first year Design & Graphics.

High Point Aviation: Operating Breakevens

2017 ◽  
pp. 1-4
Author(s):  
Mark E. Haskins
Keyword(s):  
Fundamental Question ◽  
First Year ◽  
High Point ◽  
Northern Canada ◽  
Financial Slack ◽  
Flight Operations ◽  
Financial Base ◽  
Wilderness Adventure

A couple wants to start a small flight charter company to serve the mining, oil, scientific, and wilderness adventure clients of northern Canada but worry that their thin financial base necessitates a sizable scale of flight operations during their first year. If a substantial revenue stream was slow to develop, or expenses were too high, their first year might be their last year—they had no financial slack. The fundamental question is, given their preliminary budget figures for the coming year, what level of revenue-generating flight miles did they need to just break even?

Green Building Efficiency and Sustainability Indicators

2020 ◽  
pp. 128-145
Author(s):  
Mir Sayed Shah Danish ◽  
Tomonobu Shah Senjyu
Keyword(s):  
Rapid Change ◽  
Green Building ◽  
Building Design ◽  
Primary Objective ◽  
Green Building Design ◽  
Long Run ◽  
Drastic Increase ◽  
Proper Definition ◽  
Enhance Efficiency ◽  
To Come

A rapid change in technology trend and lifestyle around the globe has induced a drastic increase in energy production, delivery, distribution, and consumption. That forced building planners, designers, scholars, researchers, and practitioners to come up with a sustainable solution within constrained economic and environmental dimensions. With a proper definition and usage of efficiency and sustainability dimensions in terms of green building design and construction, global challenges (global warming, climate change, poverty, global health and education, etc.) can be mitigated, leading to long-run sustainability. This chapter presents indicators to define, manage, measure, and enhance efficiency and sustainability phenomena for proposing a green building. A primary objective of this study is to identify influencing factors and set forth viable indicators and framework in terms of energy-efficient green building from different standpoints hiring innovative tangible and non-tangible tools and technique.

An Inexpensive Course on Layered Manufacturing and Rapid Prototyping

1996 ◽  
Author(s):  
Jan Helge Bøhn
Keyword(s):  
Rapid Prototyping ◽  
Design Process ◽  
Product Life Cycle ◽  
Layered Manufacturing ◽  
Cnc Machining ◽  
First Year ◽  
Processing Technologies ◽  
Manufacturing Technologies ◽  
Compare And Contrast ◽  
Correct Design

Abstract Rapid prototyping is revolutionizing the design process. With it, less designs are being sent directly, untested, into production. Instead, designs can now be aggressively prototyped to significantly reduce the likelihood of having to correct design errors late in the product life cycle. This paper reports on a new, experimental first-year graduate-level course that offers the students the opportunity to explore the concept of rapid prototyping and its impact on the design process. The emphasis of the course is to familiarize students with available and forthcoming automated fabrication technologies, that, when combined with secondary processing technologies, facilitate aggressive prototyping as an integral part of the design process. In particular, students are encouraged to compare and contrast the various layered manufacturing technologies and CNC machining with respect to the prototyping needs of a designer.

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