Designing the material feed system from nozzle to gate
| Parameter | Value |
|---|---|
| Orifice | 3-6mm (match nozzle) |
| Funnel Angle | 3-5 deg included |
| Length | 30-70mm |
| Cold Slug | 1 shot volume past sprue |
D = 0.8 x (W^0.5 x L^0.25) where W=part weight g, L=flow length mm. Full round cross-section lowest pressure drop.