Dragon HF Hotend (OpenSCAD model)

This is an OpenSCAD model of Dragon HF Hotend, which can be used when designing custom brackets for 3D printers.

The model uses `NopSCADlib` library, which needs to be installed (please, find instructions in the comment at the top of the file, or just install the library if you already know how to do it)

To use the mode simply add `use ` and then invoke `DragonHF_Hotend()`

By default it will draw less detailed model, but you can add `$detailed` to the invocation to draw a bit more details: `DragonHF_Hotend($detailed=true);`

0, 0, 0 point is where the filament enters the shaft. Also, by default is upside down. Please, use `rotate()` to adjust the orientation.