Innovation often relies on what other people have previously invented and what tools and technologies you can already apply to advance your own ideas.
Before we started, we planned to use polymer materials that could be spun to make highly efficient and high flow membranes. These had been invented decades ago and have been used for making high volume water purification plants on an industrial scale. We thought they could possibly be “hacked” and used to make a tiny purification device for our filter.
We also thought that the modern distributed manufacturing model – where different companies and factories collaborate to assemble a final product, could allow us to make a working filter without making large initial capital investments in machines or a factory. With an initial idea of the final product and all of these resources available we felt it was just a matter of putting the pieces together.
However, some issues we encountered were:
After months of testing and learning we realised that the only way to make a water tight seal that could sustain pressure was either by:
Option 1 was difficult because the whole product had been designed to be molded with ABS plastics (high resistant, food contact safe) with the correct size tolerance in mind. It was not possible now to change the whole project into injection molding with polypropylene. Option 2 was feasible.
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