This is the ultimate setup for a Prusa Bear MK3S. This thing is a beast. NOTE: You will likely need to recalibrate the device, reseat the pinda probe, Clean the hotend enclosure etc. Be sure to use the bondtech mosquito firmware if you are upgrading the device. The fill sensor needs to be replaced. I would recommend this to any 3d Printer pros. The major upgrades include. Slice Engineering Magnum Nozzle + Bond Tech MK3S adapter Kit ($300 upgrade) Hight Temp Thermistor + More silent fan Bear Frame Upgrade Nylock bed level upgrade - Precise bed leveling Included (all used) Official Olessen Ruby nozzles - 0.40, 0.60 ($100 each) Vandium Nozzles - 0.40 + More Other miscellaneous Multiple textured plates Heating elements PTFE Tubes Original Bear MK3S Hotend Setup