The outer and inner contours of PCBs are usually milled. This also includes cutouts, slots and slotted holes. Holes with a diameter of 6 mm or larger are also milled.
Milling always comes at no…
Milling / NPTH slots
Parameter Value
Line width 1µm
Min. milling tool diameter Ø 0.8mm
Min. radius for inner corners 0.4mm
Recommended layer Dimension-Layer, z.B. EAGLE layer 20
Copper exemption…
