My experience with milling stone is from observing granite countertop fabrication which has been done for years with diamond bits in handheld routers but is being overtaken by the same tooling in CNC machines as well as waterjet cutting. I have seen amazing examples of inlay work done with waterjets. The biggest problem I can see is protecting the mechanical parts of the machine from the very abrasive stone dust.
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ We are like tenant farmers chopping down the fence around our house for fuel when we should be using Nature's inexhaustible sources of energy -- sun, wind and tide. ... I'd put my money on the sun and solar energy. What a source of power! I hope we don't have to wait until oil and coal run out before we tackle that. -Thomas Edison, inventor (1847-1931) >________________________________ > From: Ben Potter <b...@bpuk.org> >To: 'Enhanced Machine Controller (EMC)' <emc-users@lists.sourceforge.net> >Sent: Monday, September 3, 2012 3:55 PM >Subject: Re: [Emc-users] Limestone cnc > >I've carved a few test pieces in limestone (but never tried to inlay it), >from memory I used a fairly high speed (15-20k rpm) and slow feedrates >(150-300 mm/min). > >Mind you, I was probably rubbing the tool at that, so it should be possible >to go faster - experimenting a bit should give you some idea of how >fast/deep you can go with your gear. > >Used standard (uncoated) carbide tooling, mainly small ballnoses, with a >light cut. Water was applied using a spray bottle, didn't need a lot. > >When I ran without water I had a lot of problems with the stone chipping and >losing detail. Could be speed/feed dependant though. > >The biggest problem was that the cut stone tended to form a thick paste, >which obviously needed to be cleaned off the rails and screws before it got >into any bearings. > >Hope that helps. >Ben > > >-----Original Message----- >From: Erik Friesen [mailto:e...@aercon.net] >Sent: 03 September 2012 21:45 >To: Enhanced Machine Controller (EMC) >Subject: [Emc-users] Limestone cnc > >What would be the minimum setup needed for doing an inlay on limestone? > >My dad in law was asking about this, and I don't see a lot of easy info >about this. > >Could we use a slow router, say 6000rpm, and some type of diamond bit, and >take all day to do the job? > >Is water a requirement? > >Is there some basic reason why a typical cnc router setup won't work? >---------------------------------------------------------------------------- >-- >Live Security Virtual Conference >Exclusive live event will cover all the ways today's security and threat >landscape has changed and how IT managers can respond. Discussions will >include endpoint security, mobile security and the latest in malware >threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ >_______________________________________________ >Emc-users mailing list >Emc-users@lists.sourceforge.net >https://lists.sourceforge.net/lists/listinfo/emc-users > > >------------------------------------------------------------------------------ >Live Security Virtual Conference >Exclusive live event will cover all the ways today's security and >threat landscape has changed and how IT managers can respond. Discussions >will include endpoint security, mobile security and the latest in malware >threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ >_______________________________________________ >Emc-users mailing list >Emc-users@lists.sourceforge.net >https://lists.sourceforge.net/lists/listinfo/emc-users > > > ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
