Prusa MK3 E3D Volcano Mod

It couldn't be easier to use an E3D volcano with your Prusa MK3 - all you need is one part. This part. It is a replacement extruder cover, no other hardware modifications are required. You can even get away with nothing but a volcano heater block and nozzle - the heater cartridge and thermistor cartridge used in the E3Dv6 hotend can be reused in place if you wish.

The volcano heater block will screw onto the existing heat break without issue. Simply transplant the square nut and hex nut used in the stock extruder cover into this new one, screw it on and reattach the print cooling fan and nozzle, adjust the PINDA probe so it is about the thin part of a ziptie higher than the nozzle tip, and that's all she wrote!

Well, you will need to recompile the firmware. It's actually quite easy, you can compile and upload it to your printer all with one click using the Arduino IDE. Instructions and download links for the firmware source code and the right version of the Arduino IDE