Depends heavily on foam density, wire diameter and wire temperature. A starting point:
- EPS 15kg/m³ (cheap white packaging): 15-25 mm/s with 0.3mm Kanthal at ~80°C
- EPS 25kg/m³ (model-quality blue/pink): 10-18 mm/s
- XPS (Styrofoam SM): 8-15 mm/s at slightly higher temp
- EPP: very slow, 4-8 mm/s, low temp — EPP is bouncy and wants to push the wire
The tool's material dropdown auto-suggests sensible defaults — start there, then tune based on the first sacrificial cut. If the wire drags / wobbles: too fast. If the cut is wide and melty: too slow.
- EPS 15kg/m³ (cheap white packaging): 15-25 mm/s with 0.3mm Kanthal at ~80°C
- EPS 25kg/m³ (model-quality blue/pink): 10-18 mm/s
- XPS (Styrofoam SM): 8-15 mm/s at slightly higher temp
- EPP: very slow, 4-8 mm/s, low temp — EPP is bouncy and wants to push the wire
The tool's material dropdown auto-suggests sensible defaults — start there, then tune based on the first sacrificial cut. If the wire drags / wobbles: too fast. If the cut is wide and melty: too slow.