Finding Pull Directions for Interference-free Mould Openings

Alan C. Lin*, Mohammad Effendi

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)


This paper proposes an approach to determining pull directions of an undercut region using the visibility map algorithm. A number of pull direction candidates are firstly generated and projected onto a spherical surface using a regular placement algorithm. The normal directions of undercut faces are then extracted and used to eliminate unwanted pull direction candidates. A group of pull directions are finally selected and used to design a side core mechanism in the design of an injection mould. Furthermore, one point at the center of the group is chosen to represent the pull direction of the undercut region.

Original languageEnglish
Article number01003
JournalMATEC Web of Conferences
Publication statusPublished - 31 Oct 2016
Externally publishedYes
Event2016 International Conference on Design, Mechanical and Material Engineering, D2ME 2016 - Auckland, New Zealand
Duration: 8 Sept 201610 Sept 2016


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