Fair play sir i take it back. Let me rephrase, i wouldnt try to machine ceramic haha.
Actually Dr Fun Socks it is wise NOT to try to machine ceramic unless you have a spare of whatever you are trying to machine (which I did).
If presented with 10 ceramic casebacks for example, it is possible for maybe 2-3 tops to be done successfully. The risk of cracking or fracturing it is too high to make it anything more sensible than tightrope walking without a safety harness, across two high peaks at the Grand Canyon on a windy day. Is there a chance you make it safely across? Answer is yes, and hence the technical possibility but the risk is self-evident in that scenario.