I have been shopping for a mini mill/engraver that will do the job that I have been doing on my Deckel pantograph. I have included a couple pictures as an example of what I do. The coin and electrode are about the size of a half dollar. I use a 15 deg. single lip cutter with a .002" and .004" tip. The design is only machined .007" deep, but I need to retain the fine detail that I get with the pantograph. At the present time I am machining into Graphite, but would like the option to do copper electrodes as well. I am looking at the pcnc 770 with its 10,000 rpm capability. Not having any experience machining electrode copper, I am a little leery whether these rpms are adequate. My Major concern is whether the accuracy improvements in the series 3 machines, will give me the performance and results I need. Well that is my story. Any thoughts, info, recommendations or preferably personal experience that you could give on the subject would be greatly appreciated.

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