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Shapeoko 4 — Aluminum Composite (ACM/Dibond)

⚙ Shapeoko 4 Tested 2025
4/5
Notes
Aluminum composite (Dibond/ACM) cuts very well on Shapeoko. The plastic core is forgiving while the aluminum skins give clean edges.
Tips
Two-flute upcut works well. No coolant needed for ACM. The plastic core keeps tool wear low vs solid aluminum.
Details

Aluminum composite (Dibond/ACM) cuts very well on Shapeoko. The plastic core is forgiving while the aluminum skins give clean edges.

Bit

SettingValue
Type1/4" 2-flute upcut spiral

Cutting

SettingValue
Rpm18000 RPM
Feed Rate2000 mm/min
Depth Per Pass1.0 mm (full thickness often)
Stepover40 %
Plunge Rate300 mm/min

Notes

SettingValue
WorkholdingTape+glue method works well — clamps can bend thin ACM sheet important

Tips

Two-flute upcut works well. No coolant needed for ACM. The plastic core keeps tool wear low vs solid aluminum.