rough sketch 1

developed concept 1 & 2

The portfolio was required to be at most 11 pages in length, excluding cover and references. We were expected to fully explore the sub-assembly we had chosen and undertake a product development process which included:

  • Sketches & Renders

  • Product Design Specification (PDS)

  • Detailed Materials & Process Costing 

  • Mechanism and Force Analysis

  • Exploded Diagram w. Bill of Materials (BOM)

  • Referencing

DM200 Child Seat Buckle

As part of my Design Module in the 2nd year of my university degree. We were tasked to work individually to a set brief, designing a component for a children's seat / pram. The project would make up 25% of the year's grade for DM200 and be one of my favourite product design projects to date.

"Produce a professional A3 portfolio of a sub-assembly from a child's seat / pram."

rough sketch 2

developed concept 3 & 4

Mechanism & Forces

The mechanism, as shown above included multiple interacting parts which brought with it a myriad of challenges to overcome. Once the exterior design was chosen from the 4 developed concepts by use of a Controlled Convergence Matrix (CCM), I referenced multiple articles/images to begin developing the interior and mechanism itself.

Exploded View

This project greatly broadened my understanding of a typical small-scale, product development process. I really got to experience, first hand, all of the nitty-gritty details that you wouldn't tend to come across otherwise. It helped me to understand the limitations/constraints that designers and engineers face, and what we can develop in light of them.


All referencing, detailed information and graphics not shown in this page can be found in the attached PDF file of the complete 13-page portfolio. 

© 2019

By Mitchell Trotter

· Authentic design from the west of Scotland ·