Add ons for the E3D V6 - Educational Hotend Section model

I was missing a few parts for the hotend model by Agustin. So I made a screw for the heater, a setscrew for the thermistor. And a cut away version of the ptfe liner. I also uploaded a stand that I made for it. Do keep in mind that the stand was made for a 400% upscaled version of the original model. For the stand you'll need 4 m8 nuts and a 260mm length of m8 (8mm) threaded rod.