My mill has the cutter fully surrounded by a vacuum manifold, and the vacuum itself is bag and HEPA filtered.
The compressed paper PCBs have horrible properties. The RF laminated all have specific properties for electrical performance; dielectric constant, low loss tangent, low surface roughness, homogeneity, controller thermal expansion, thermal conductivity.
The compressed paper PCBs have horrible properties. The RF laminated all have specific properties for electrical performance; dielectric constant, low loss tangent, low surface roughness, homogeneity, controller thermal expansion, thermal conductivity.