I was hesitant to reply as a woodworker's definition of engraving is going to be different than mine, but we do use madCAM for scribing aluminum and steel all the time. However, our "engraving" is typically only 0.25mm deep. madCAM does this well with the "Along Curves" toolpath.
This probably isn't that helpful of a response to the original poster, but for anyone else in the metal-cutting trades who were curious about scribing with madCAM, we do it all the time.
Dan
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(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)
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