Injection moulding is an incredibly repeatable production technique, with parts being made by pouring molten material into a mould and letting it set. Microinjection moulding has taken this practice and reduces the scale by an order of magnitude to reliably create parts that feature structures that measure micrometres in size.The resolution of this process makes it ideal for the batch production and scale up of microfluidic devices for prototyping and testing purposes. Making injection moulding microscale requires intense control of injection pressure, temperature, and the ability to fabricate intricate moulds.