Render based on Kraken 3D model by Mike K2lly: https://grabcad.com/library/e3d-kraken-quad-extruder-1
2013, the year of the hot-end.
For the last year I have been using and experimenting with as many different hot-ends I could get my hands on. 2013 was a strong year for Hot-end and nozzle development. As we move away from building hot-ends out of plastic materials that can melt to ones that can offer extremely higher temperatures, more interesting materials will be tried in RepRap 3D printers.
By Richard Horne