Heater block and M3 stud thermistor from this hotend design were published before as DIY parts. Now, whole hotend is available for 3mm and 1.75mm filaments with 0.5, 0.35 and 0.25mm nozzles. Advantages of this design: http://2x2.us/mg-plus-assembly-instructions.pdf http://2x2.us/mg15-hotend-assembly.pdf http://2x2.us/mg11-heater-block-assembly.pdf Assembly instructions, Exploded View drawings in PDF format are available for download. 3D STEP and STL models are supplied. Wiki page planned, but not created / published yet. MG Plus Heater Block and screw-on thermistor were published here already, as a separate thing, with drawings and instructions. Other drawings in works and planned to be published.