First export of my own setup, refined with time, this setup is working very well for me, including the fan ducts.

Feature highlight:

• TPU friendly, can print TPU at quite high speeds
• blower fan adapter for the E3Dv6, for a stronger cooling
• using 40mm rear fan acting as hotend & part cooling fan
• reuses original screws
• requires a shorter X belt, the tension is easier to adjust
• fully "open" so you see how the filament is pushed in real time
• easy to replace any J-head hotend, adapters provided so you don't need a screwdriver