Clone Prusa i3 MK3S Printer Full Kit 3D Printer DIY Bear MK3S Including Einsy-Rambo Board Prusa i3 MK3 To MK3S Upgrade Kit   What you will get with this upgrade? NEW FILAMENT SENSOR The previous sensor didn’t work well with some specific filaments. The new sensor is using the optical sensor which is triggered by a simple mechanical lever. This sensor doesn’t care about the optical properties of the filament (it can be completely invisible) and cannot die because of mechanical wear.   EASIER SERVICE Thanks to completely reworked extruder you don’t have to take apart the whole extruder if you want to change the nozzle or PTFE tube. As a bonus, the nozzle and the extruder motor is much closer to the X axis, this means less resonance and better prints too. Better Y axis belt tensioning is just the icing on the cake.   BETTER COOLING Thanks to the better design of the whole extruder, air flow is increased and as a result, cooling capabilities are improved. We...