chopping board prototyping and set backs

I have now made some prototypes for the chopping board based on my findings from my market research. First I built a prototype thats surface size would fit over the majority of sinks on the market with a rectangular drop down that should in theory fit inside the majority sinks in order to reduce movement of the chopping board. However when it came to testing this prototype I realised not only the dimensions of the sinks were also going to influence my design but also the shape. During my tests I came to realise there are hardly any sinks that are completely rectangular. Many of the designs have very curved corners meaning an angular chopping board would be difficult to fit in, and many of the sinks I noticed on the market have 6 sides rather than 4.

With this set back I proceeded to produced a prototype which had a circular shaped drop down. This was far more effective in filling the most amount of space possible within the sink however without corners the board was free to turn within the sink and without a flat edge there was very little contact with the sink if there was movement.

Therefor it was back to the drawing board yet again. I have been talking to the technicians about some of the options I might be able to explore.