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Hello
What is better for vibration damping stiffness accuracy etc the natural granite or epoxy granite ?
Because for me natural granite costs much less than epoxy granite...
For a cnc router 2m X 1.5m table sides and grantry is enough 12cm think granite or must go with 16cm thickness ?
I will use hgr20 rails with 1605 ballscrews with rotating nut not rotating ballscrew.
Hi MR - If you have access to natural granite and can work natural granite then that's the way to go. Its stiffer and more stable then EG. For that size machine I think you should use 25 or 30mm rails not 20mm. Peter
thank you.
What do you think about thickness of granite for this size machine? 12cm is enough or needed more for example 16cm ?
Hi Mrsa - 120mm of granite is a very stiff chunk of material. For a router I'd expect it to be fine maybe even a bit over what's needed. Will be a heavy chunk of material!! Peter