When the Prusa i3 MK3 was released in 2017 ... the force of two opposing magnets return the lever to its original position. With no springs or mechanical switch to get gummed up to wear out ...

[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 ...