[Prusa], the man, not the printer, has just released a multi-material upgrade for the Prusa i3 mk2. This upgrade allows the i3 mk2 to print in four colors using only one hotend, and does it in a ...

It's worth pointing out that this is a Prusa machine, and a core part of the company's ethos is that you should always be able to upgrade from one machine in its line-up to the next and repairable.

The optical filament sensor of the Prusa i3 MK3. But the most exciting upgrade of all was the new filament sensor. Using an optical encoder similar to what you’d find in a mouse, the Prusa i3 ...