This paper has two purposes. First, we hope to demonstrate how a design sketch can play a role in design practice as a physical space for negotiation. Thus our focus is not on the representivity of the sketch as such, but how it helps to organise design. Our second purpose is to reflect upon the ‘maker/ analyst’ process through which the paper has come about. In this reflection we address the efficacy and challenges of interdisciplinary collaboration in design research, in particular the relevancies of the close study of practice inherent in both the maker and the analyst’s endeavours.