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Hollowing Out Granite

 
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Old 09-21-2012, 12:31 PM   #1
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Hollowing Out Granite


okay,my stepson is starting a new business.he will be making headstones with a video screen to show videos of the deceased.
anyway,he asked me about hollowing out part of the stone to make room for the componets,needs to be about 3-4 inches deep.i am thinking i could use a 4 or 7 inch grinder with diamond blade to score a couple inches deep at a time and then use a chisle to remove the granite,then do it again to get the depth needed.am i pissing in the wind or am i on the right track?
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Old 09-21-2012, 01:19 PM   #2
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Re: Hollowing Out Granite


Not sure what it is, but man there's got to be a better way.

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Old 09-21-2012, 04:54 PM   #3
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Re: Hollowing Out Granite


A cousin of mine did monuments for a while. Most of the cutting is done in a shop with saws and routers in the $100k area. I mean i guess you could go that route with the grinder, but why not order the monument with the area already cut out?
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Old 09-21-2012, 06:09 PM   #4
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Re: Hollowing Out Granite


i agree.the one i am doing is a prototype for them.i also suggested using concrete and polishing it like a countertop.this way we could form out the area needed.
i started in it this afternoon.i have to say it easier than i thought it would be.i think the only thing that would help would be add water to the diamond blade.i have it about 2 1/2 in deep now.another 1 1/2 to go.
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Old 09-21-2012, 09:03 PM   #5
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Re: Hollowing Out Granite


Just talking out my a&& here but what about a two piece? Cut the opening all the way through the front piece and then epoxy or similar to back piece, sand and polish the edge to hide the seam?
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Old 09-21-2012, 09:21 PM   #6
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Re: Hollowing Out Granite


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Originally Posted by r4r&r View Post
Just talking out my a&& here but what about a two piece? Cut the opening all the way through the front piece and then epoxy or similar to back piece, sand and polish the edge to hide the seam?
It would make for a weak piece and you would always see a seam
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Old 09-21-2012, 09:39 PM   #7
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Re: Hollowing Out Granite


If there's no machine to set/program for the cutting and doing it manually is the only way. I would venture to say that the exposed edge would be the only facet controllable to a degree. If the screen goes into the hollow, the exposed edge would be the only 'finish' reveal. Even if there were a makeshift gauge for depth, the hollow would turn out as different depths. Using a blade to cut grids and tooth'ing out with a chisel in lifts would be efficient and careful.
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Old 09-21-2012, 10:06 PM   #8
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Re: Hollowing Out Granite


How about a diamond core bit? Drill necessary number of cores to the required depth, snap free with a wedge, then clean up with this finger twist bit.

http://www.granitecitytool.com/finger-bit-twist-segment
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Old 09-22-2012, 09:49 AM   #9
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Re: Hollowing Out Granite


Quote:
Originally Posted by r4r&r View Post
Just talking out my a&& here but what about a two piece? Cut the opening all the way through the front piece and then epoxy or similar to back piece, sand and polish the edge to hide the seam?
they are talking about doing something like this.cutting all the way thru and then adding a 1 or 2 in piece to the back.
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Old 09-22-2012, 09:49 AM   #10
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Re: Hollowing Out Granite


Quote:
Originally Posted by Doctor Handyman View Post
How about a diamond core bit? Drill necessary number of cores to the required depth, snap free with a wedge, then clean up with this finger twist bit.

http://www.granitecitytool.com/finger-bit-twist-segment
love that idea!!
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Old 09-22-2012, 09:54 AM   #11
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Re: Hollowing Out Granite


Make it easier and have said step son fit said electronics into said round whole.

Just curios, these solar powered?
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Old 09-22-2012, 09:54 AM   #12
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Re: Hollowing Out Granite


I thinks his idea could work.
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Old 09-22-2012, 10:00 AM   #13
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Re: Hollowing Out Granite


The head stones I have seen with the screen were all the way through the headstone and they have a cover on the rear. I would say a flowjet/water jet would be your best bet. Would be a very nice clean edge and quick.

The other thing you can do is put a QR code on them so you could scan with smart phone and watch a vid lol
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Last edited by BCConstruction; 09-22-2012 at 10:03 AM.
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Old 09-22-2012, 10:25 AM   #14
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Re: Hollowing Out Granite


Quote:
Originally Posted by BCConstruction
The head stones I have seen with the screen were all the way through the headstone and they have a cover on the rear. I would say a flowjet/water jet would be your best bet. Would be a very nice clean edge and quick.

The other thing you can do is put a QR code on them so you could scan with smart phone and watch a vid lol
That would be alot cheaper and pander to the same audience. Those who would buy a vid tombstone likely have smart phones.
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Old 09-22-2012, 10:25 AM   #15
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Re: Hollowing Out Granite


Quote:
Originally Posted by BCConstruction
The head stones I have seen with the screen were all the way through the headstone and they have a cover on the rear. I would say a flowjet/water jet would be your best bet. Would be a very nice clean edge and quick.

The other thing you can do is put a QR code on them so you could scan with smart phone and watch a vid lol
Dang bcc you just destroyed that young man's business plan.
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Old 09-22-2012, 11:09 AM   #16
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Re: Hollowing Out Granite


Quote:
Originally Posted by BCConstruction
The head stones I have seen with the screen were all the way through the headstone and they have a cover on the rear. I would say a flowjet/water jet would be your best bet. Would be a very nice clean edge and quick.

The other thing you can do is put a QR code on them so you could scan with smart phone and watch a vid lol
Waterjet, yes sir. That'll cut it like butter.
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Old 09-22-2012, 01:04 PM   #17
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Re: Hollowing Out Granite


The problem I see with videos and QR codes may seem like a no brainer to some but with modern technology ... who is going to have the equipment 50 years from now to read / see it? Seems like a fad in modern technology that some are jumping on but I doubt it will be around 'forever'. Bet 5 years from now the younger generation are going to say "smart what" when it comes to smart phone as they will be long gone

I sandblast rock, memorials, etc. I think the 'good ole fashioned way' will be better read 50 some years from now.

But, if I'm going to drill / cut something into a rock its usually a core drill and if I want something real detailed it goes to the waterjet guys. Grinders are good but are used to chunk out areas getting something ready for the polishing.

Bernie

Last edited by bernie; 09-22-2012 at 01:11 PM.
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Old 09-23-2012, 04:39 PM   #18
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Re: Hollowing Out Granite


Quote:
Originally Posted by ohiohomedoctor View Post
Make it easier and have said step son fit said electronics into said round whole.

Just curios, these solar powered?
yes these will be solar powered.he needs the four in depth mainly for cooling fan.
i suggested adding audio to the videos by using a radio transmitter like real estate agents use.tune your radio to 99.7....use your smart phone radio and dad talks to you from the grave.a bit morbid,but i think they are on to something.
i got it all cut out to the 4 inch mark,i have about 4 hours in it.
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Old 09-23-2012, 06:27 PM   #19
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Re: Hollowing Out Granite


Nothing says 'Forever' like a plastic video screen
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Old 09-23-2012, 06:46 PM   #20
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Re: Hollowing Out Granite


Quote:
Originally Posted by stacker

yes these will be solar powered.he needs the four in depth mainly for cooling fan.
i suggested adding audio to the videos by using a radio transmitter like real estate agents use.tune your radio to 99.7....use your smart phone radio and dad talks to you from the grave.a bit morbid,but i think they are on to something.
i got it all cut out to the 4 inch mark,i have about 4 hours in it.
So you are maxed out at 14 headstones a week at a 56 hr week or 10 in a standard week. Seems like you could order them already done that way.

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