Velocity stack 45*

Best suited using Pa6-Cf, Pa Nylon filament to withstand high temperatures. Other filament can be used but you must do your own research.

Amazing intake sound when done correctly!

Size can be adjusted in slicer to suit your vehicle

PA6-CF (Carbon Fiber Nylon)

Best for: rigid, high-strength intake parts / engine-bay components

Printer: ****** Centauri Carbon

Nozzle: Hardened steel / ruby (required — abrasive)

Print Settings:

🧩 Layer height: 0.16 – 0.20 mm

🧱 Walls / perimeters: 4 (≈ 1.6 mm wall)

🔳 Top & bottom layers: 5 – 6

🕸 Infill: 40 – 60 % (gyroid or grid)

🌡 Nozzle temp: 260 – 270 °C

🛏 Bed temp: 80 – 90 °C

🧊 Chamber temp: 40 – 50 °C (enclosed recommended)

💨 Cooling fan: Off (0 %)

🧴 Adhesion aid: Magigoo PA / glue stick / garolite plate

🧷 Brim: Yes (10 – 15 mm)

🔄 Orientation: Flange down / mouth up (for smooth throat)

🔌 Retraction: 1.0 – 1.5 mm @ 40 mm/s

⚙️ Print speed: 40 – 60 mm/s

💧 Filament storage: Keep dry (≤ 15 % RH, 70 °C drying for 6 h)

PA Nylon (Unfilled)

Best for: flexible, tough, impact-resistant parts / test fittings

Printer: ****** Centauri Carbon

Nozzle: Brass or hardened steel (both fine)

Print Settings:

🧩 Layer height: 0.16 – 0.22 mm

🧱 Walls / perimeters: 3 – 4 (≈ 1.2 – 1.6 mm)

🔳 Top & bottom layers: 4 – 5

🕸 Infill: 35 – 50 % (gyroid recommended)

🌡 Nozzle temp: 245 – 260 °C

🛏 Bed temp: 75 – 90 °C

🧊 Chamber temp: 35 – 45 °C (enclosed printer recommended)

💨 Cooling fan: Low (20 – 30 %)

🧴 Adhesion aid: Magigoo PA / glue stick / PEI sheet

🧷 Brim: Yes (8 – 12 mm)

🔌 Retraction: 1.2 mm @ 35 mm/s

⚙️ Print speed: 40 – 55 mm/s

💧 Dry filament: Essential – 70 °C for 6–8 h before printing

Velocity stacks - Air intakes

Nathan Herliczka-dam