This week we're going to focus on Interpenetration of Solids. In essence this topic is about finding the Orthographic Views of a solid cutting through another solid. The ultimate aim of Interpenetration of Solids questions is to find the Line/s of Interpenetration. This topic can come up on the exam as a short question in Section A or a long question in Section B. There are four different methods to solve these problems:
- Limits Method - Auxiliary Views
- Radial Elements Method - Cones and Pyramids
- Horizontal Section Method - Universal
- Vertical Section Method - Universal
You need to know all of the above methods as you can be asked to use a specific method in the exam.
Syllabus Learning Outcomes
The image below shows the Intersection and Development of Surfaces portion of the DCG Syllabus. The parts related to Interpenetration of Solids are highlighted.
What you need to know!
- Limits Method (No Auxiliary View)
- Radial Elements Method
- Horizontal Section Method
- Vertical Section Method
- Using Auxiliary Plans to find Line of Interpenetration
Practice Textbook Questions
- P188 Q4
- P189 Q6
- P190 Q10
Past Exam Questions
- 2017 HL B-1
- 2016 HL B-3
- 2013 HL A-2
- 2012 HL B-2
Delighted to see that you're still persevering with your revision. There are a lot of exam questions this week but if you can complete them you'll be on target to get your H1 come June. As always, if you have an questions about this week's revision topic please leave a comment below and I'll get back to you as soon as I can.
Leaving Certificate Design and Communication Graphics Syllabus. (2006). Dublin: The Stationary Office.
Anderson, D. (2014). Graphics in Design and Communication: One Volume Edition. Dublin: Gill & Macmillan.