RT info:eu-repo/semantics/article T1 Learning CAD at university through summaries of the rules of design intent A1 Ramos Barbero, Basilio A1 Melgosa Pedrosa, Carlos A1 Zamora Samperio, Raúl K1 Strategic knowledge K1 3D CAD learning K1 Reuse and alteration of the CAD model K1 Design intent K1 3D design rules K1 Enseñanza superior K1 Education, Higher AB The ease with which 3D CAD models may be modified and reused are twokey aspects that improve the design-intent variable and that can significantly shortenthe development timelines of a product. A set of rules are gathered from variousauthors that take different 3D modelling strategies into account. These rules are thenapplied to CAD strategic-knowledge learning methodology and included in 3D CADmodelling exercises for students following the degree in mechanical engineering at theUniversity of Burgos (Spain). The experiment was conducted in two groups with a totalof 75 students. The design-intent rules were introduced in the different exercises thatthe teacher explained in both the theoretical and the practical classes. In addition, asummary of the different design rules in each of the practical exercises was explainedin the practical classes in only one of the groups. The experimental results, reported inthis paper, tested the influence of these summaries on overall improvements in 3Dmodelling and on the design-intent variable, which is subdivided into four sections:skeleton, structures, alterations and constraints. The use of the summaries of the designintent rules led to statistically significant improvements in 3D modelling in theexperimental group, in comparison with the group of students to whom those summarieswere not explained. PB Springer SN 0957-7572 YR 2017 FD 2017-09 LK http://hdl.handle.net/10259/4652 UL http://hdl.handle.net/10259/4652 LA eng DS Repositorio Institucional de la Universidad de Burgos RD 24-nov-2024