Compared to v4:
-Reduced weight due to thinner fins.
-Increased cooling capacity - thinner fins allow us to get more fins packed onto the same heatsink.
-Better final brass nozzle geometry gives less ‘dragging’ of the nozzle over curled up prints, and less heat radiated towards prints. I’ve got some of that P2P FlexPloyester on the way - along with a whole bunch of speciality filaments from them. Fun times ahead.
-Better chamfers/funnelling where filament enters the hotend or goes from one part of the hotend to another. This reduces snagging and increases reliability.
-Placement of thermistor altered for more accurate and reliable reading (sensor closer to melt zone).
Also added the feature for the integrated bowden system, which is special/unique in that the PTFE tubing doesn’t just connect to the top of the hotend with a pneufit coupler - Instead the tubing actually passes THROUGH the pneufit coupler and down into the hotend. This eliminates filament snagging on pneufit couplers which are really designed for conveying fluids and not filaments, it also increases the degree to which the filament is confined radially.
0.25mm and 0.6mm add-on nozzles were added with the release of v5 too, but they are backwards compatible to all previous versions so not v5 specific.