Hello! Long time fan and follower of 3D printers and when they became open source I was overjoyed.

Just wondering if there is an open source version of the Z-Corp's true color printer in the works. If I remember right they use just five 'toners' which make up to 390,000 different colors.

The z-corp 650 is a powder printer. The ink is dispersed along with the binder during printing. This can't be done with filiment currently as there is no practical way to mix the filiments for dithering in real time. There are people doing multi color fpr patterning and striping, but effective mixing of photo realistic color is at the moment only practical in the commercial end.

So... the issue is designing it to be accurate mixing powders?

That sounds pretty do-able for some savant to release to the open source world..?

The z-corp printers works as a "ordinary" inkjet printer but it prints on powder insteath of paper.