The objective is a design that goes to the essentials, oriented towards simple and rapid industrialization. Components have been chosen preferentially according to their ease of supply.
All parts can be machined in with standard techniques (milling/turning), and all supplies are standard industrial supplies, available off the shelf in large quantities.
Only the position sensor gearwheel requires specific manufacturing, either by machining with a specialized tool, or by 3D printing (stereolithography process – SLA, for example).
The whole 3D parts and Bill of Materials are available here : https://code.electrolab.fr/covid-19/opensyringepump/-/tree/master/mechanics