Police in the West African state of Benin are hunting for the third alleged plotter suspected of mounting a failed coup to unseat the country's president.
Police later established that the man accompanying Uddin was fellow plotter Omar Khan - and that the pair had bought some of the knives eventually found in the car boot.
To convey his plans for revolt against the Persian king, one Greek plotter wrote his message on the shaved head of his messenger, and then waited for the hair to grow back.
These printers use something like a toothpaste tube of plastic or other material held vertically in an X-Y plotter that squirts out thin layers of tiny dots of material that build up, layer by layer, to produce a 3D replica of the computer-generated design.