Milling and drilling
34
ProtoMat M60
Caution! All speed ranges and feed rates given in BoardMaster
refer to FR4 material. When other material is used, it is advised to
work with reduced feed rates at first.
Danger! Take into consideration that cancerogenous dusts (due to
glass fibers) might be produced when FR4 material is machined.
Therefore always work with the dust exhaustor switched on.
Always use the superfine filter.
Danger! When machining some materials (e.g. teflon) hazardous
gases might be produced!
7.7 Milling wide isolation channels
fig. 16: Double chamfered cutter
Wide isolation channels can be made with a 36 mm long double
chamfered cutter. Various diameters are available.
The milling depth must be set such that when the copper is removed,
only minimal burring results. The 3 mm double chamfered cutter is
particularly well suited for milling very wide isolation channels (VDE
regulations).
7.8 Front plate engraving
fig. 17: Universal cutter
