I saw one in person at the Maker Faire. It made very neat prints on paper. It does have some limitations on trace size and current capacity, but it's fantastic as a learning tool and works great for logic and older SMT.
I've also seen articles and pictures of the conductive/resistive/N-Type/P-Type silicon ink(+3d) printers as well. That category is being temporarily referred to as 6d printers to distinguish it from the current run of 3d and SLA types.
I've also seen articles and pictures of the conductive/resistive/N-Type/P-Type silicon ink(+3d) printers as well. That category is being temporarily referred to as 6d printers to distinguish it from the current run of 3d and SLA types.