This kinda reminds me how Otto Wichtrle created the first contact lense on a machine build from the Merkur construction set (known as Mechano in the West):

https://cs.m.wikipedia.org/wiki/Soubor:Merkur_based_apparatu...

https://www.theatlantic.com/technology/archive/2014/10/soft-...

Even saw the actual mashine on an exhibition once - cleverly done & powered by a bicycle dynamo. :-)