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I’m trying to actually cut it, not engrave, so I figured I’d need some bits with different rake angles to the stone, rather than diamond coated engraving bits.
I have used these on a project for a client and they worked well but will need a bit of adjustment for speeds and such on an XC. I used my larger ball screw mill on that project so the feeds would not work the same on any size XC. https://www.2linc.com/tools_armor_mill.htm
Not sure which end mill you are speaking off… The stone milling end mills I last referenced are just a form of carbide which is shaped in such a way that it is able to mill stone in the right conditions. The PCD engraving end mills are a slice of polycrystalline diamond (man made diamond) which is brazed onto the carbide shaft for engraving stone and what not. The same diamonds can be found in some metal cutting tools. But like most things which are so hard, they are very brittle so be careful to never drop them or let them crash intot he surface to be milled too fast or they will shatter and you are out a big chuck of change and without an end mill.
This is all very interesting. I’m going to read up on it. I have some sandstone plaques that I’m making up to commemorate the birth of my twins. Sandstone cause it was easier to hand carve with my limited experience. However, I have an old cracked, marble counter top that would be awesome if I could use the X-Carve on!!
