Extruder Shell V2 for Neptune 4 series - For NEMA14 Heatsink Upgrade + Fan Guard

This is a custom extruder shell designed specifically for the Neptune 4 Series, intended for users who have upgraded their extruder stepper motor (NEMA14) with an aluminum heatsink.

The stock extruder cover may not provide enough clearance or airflow for proper cooling. This version solves that by offering:

🔧 Key Features:

✅ Extra clearance for aluminum heatsinks mounted on the stepper motor (NEMA14)

🌀 Built-in fan grill to protect the cooling fan from broken filament tips or dropped screws

🧼 Optional dust filter support: Simply cut a piece of face mask or mesh and attach it behind the grill to reduce dust intake

⚠ Note: This cover is only needed if you are upgrading your extruder motor with a heatsink. For stock setups, the original shell is sufficient.

🖨 Print Settings:

Material: PETG, ABS, or ASA

Layer height: 0.2 mm

Infill: 25%

Wall count: 3–4

Supports: Normal