Hi all, I am new to the forum and mostly new to CNC as well. I would like to engrave images ( people, faces, animals) on Hard stone such as granite and marble ( memorials) As well as wood and other materials. But pertaining to “ hard stone” , I realize I would have to keep the bit misted, but I’m wondering if anyone has done this and if so then what bit did you use?
How do you keep it wet ( water or oil of some type) and what settings? Being new to most of this, I would plan on using easel software.
Any help would be appreciated thank you.
Should be doable with a drag bit.
I always cringe when I see this question asked. While the machine is probably capable with the correct bit, I can’t help but think it’s the equivalent of dusting the linear bearings & ball screws with fine sand.
Ross @Kingswarrior, hey Bill, hey all,
I agree
I think like when milling metal, you would try to use a workpiece flood coolant from a nozzle. I have see marble being cut under a water flood.
Hi Expressomatic and AuntJemima, I checked the YouTube videos and couldn’t really find a specific answer as to what settings and bit (s) being used. But I may have missed something and I will check again, thank you.
Machinist, good point about the dust, i’m not sure if there’s a way around that or not, although it seems like some type of constant suction at the point where the bit meets the material would help a lot? Then again, it may not. ( I have seen that there are specific CNC machines Designed for marble and granite however, there is not a lot of information out there on these but I would assume those machines would cut other materials as well as I believe pretty much that a CNC machine is a CNC machine?)
My experience thus far was about five years ago with a shark machine and Vcarve desk. After a couple of weeks, of making very little progress, I gave up on it, but I have watched the easel videos and that seems to be a much easier way to go or to at least give it another try. Thanks all for your input, Ross.
Try a google search for diode laser engraving granite. With the Jtech from Onefinity It may give you what you’re looking for.
I wouldn’t. it will get into every crevise no mater what you do, and the mud like water splatter would not be healthy for the machine either.
Hi Chris, thanks for the reply. I actually do have a 10 watt and a 20 watt diode from X tool.
I’d like to get the image deeper into the stone than with my laser, but from the replies that I have gotten, it appears the best way to put in the image into granite is by laser. I still plan to get the onefinity for woodworking.
Thanks for the reply, Robert. It sounds like CNC is not the way to go for granite or marble. I do have a couple of lasers but i wanted a deeper image.
As for sandblasting, i’d really like to get much more detail than sandblasting could provide. It’s starting to sound like my best bet is going to be a high-powered laser.
This looks interesting. CNC stone carving.
https://www.cncstepusa.com/cnc-stone-carving-and-engraving
Hey Chris, hey all,
and by the way, in the videos on that page, you can see how a milling motor performs that is one of those that I call the Best milling motor solution for hobbyists and semiprofessionals, and how nice it would be if the Request for such a 43 mm “Euro” mount on the Onefinity was already there…