First of all I am crazy about E3D v6 hotend. For this reason, after watching the stock hotend mounted on the Anet E-10, I decided to design my first piece for 3D Printing.
What software have you used?
To design this object I used Tinkercad, that is a tool developed by Autodesk , is very easy to use and is cloud base, so you do not need to install any software on you computer.
The main idea of this software is to merge simple objects to create more complex things.