|
|
| crhras 2007-02-02, 8:25 pm |
|
What tool is used to make a sink cutout in 2cm granite ?
I have been told to use a contour blade but I just don't get
it would work.
Thanks,
Curt
| |
|
| To install a new cooktop I had to enlarge the existing cutout in my 3/4"
granite countertop. I used a 4 1/2" angle grinder with a diamond masonry
disk. This worked like a charm. You will need a good quality respirator (not
a nuisance dust mask) and eye protection.
Jeff
"crhras" <crhras@sbcglobal.net> wrote in message
news:cMQwh.68052$qO4.22399@newssvr13.news.prodigy.net...
>
> What tool is used to make a sink cutout in 2cm granite ?
> I have been told to use a contour blade but I just don't get
> it would work.
>
> Thanks,
> Curt
>
>
| |
| crhras 2007-02-03, 5:25 pm |
|
That's what I thought. So you don't cut it, you kinda grind it, huh ?
Thanks very much for your response.
"Jeff" <jeffs@NoSpamLamSam.com> wrote in message
news:y9-dnUOHKMGNClnYnZ2dnUVZ_tyinZ2d@comcast.com...
> To install a new cooktop I had to enlarge the existing cutout in my 3/4"
> granite countertop. I used a 4 1/2" angle grinder with a diamond masonry
> disk. This worked like a charm. You will need a good quality respirator
> (not a nuisance dust mask) and eye protection.
>
> Jeff
>
>
> "crhras" <crhras@sbcglobal.net> wrote in message
> news:cMQwh.68052$qO4.22399@newssvr13.news.prodigy.net...
>
>
| |
| John Reddy 2007-02-04, 9:25 am |
| Some things are best left to the experts and in my humble opinion,
cutting granite definitely falls into that category. The results of an
error may be unfixable.
Call a local granite fabricator and see what they will charge. I had
an extra hole drilled in my countertop after installation for a soap
dispenser. It cost me $100. Well worth it considering what a mess I
could have made in a $3,500 piece of stone not to mention what I would
have had to listen to from my wife if I had screwed it up.
| |
|
| you cut it... the diamond blade will do it easily...
Jeff
"crhras" <crhras@sbcglobal.net> wrote in message
news:bo5xh.6701$zH1.2062@newssvr29.news.prodigy.net...
>
> That's what I thought. So you don't cut it, you kinda grind it, huh ?
> Thanks very much for your response.
>
>
> "Jeff" <jeffs@NoSpamLamSam.com> wrote in message
> news:y9-dnUOHKMGNClnYnZ2dnUVZ_tyinZ2d@comcast.com...
>
>
| |
|
|
| crhras 2007-02-05, 1:25 pm |
|
Right, I've done a ton of cutting and it's cake but in order to get the nice
rounded edges for an underrmount sink you need to grind, right ? Someone
told me to use a contour blade. I bought one but I'm not sure how to use
it.
Curt
"Jeff" <jeffs@NoSpamLamSam.com> wrote in message
news:aKWdnaDO0oFb2FrYnZ2dnUVZ_tGsnZ2d@comcast.com...
>I used this grinder:
> http://www.lowes.com/lowes/lkn?acti...8110&lpage=none
>
> with this blade:
> http://www.lowes.com/lowes/lkn?acti...4701&lpage=none
>
> Jeff
>
>
> "Jeff" <jeffs@NoSpamLamSam.com> wrote in message
> news:WcedneEXWcF0q1rYnZ2dnUVZ_qOpnZ2d@comcast.com...
>
>
| |
| crhras 2007-02-05, 1:25 pm |
|
Don't have a wife, brother, and that's why I'm cuttin the granite.
"John Reddy" <johnreddy@contbuilding.com> wrote in message
news:johnreddy-0C485F.08323204022007@news.verizon.net...
> Some things are best left to the experts and in my humble opinion,
> cutting granite definitely falls into that category. The results of an
> error may be unfixable.
>
> Call a local granite fabricator and see what they will charge. I had
> an extra hole drilled in my countertop after installation for a soap
> dispenser. It cost me $100. Well worth it considering what a mess I
> could have made in a $3,500 piece of stone not to mention what I would
> have had to listen to from my wife if I had screwed it up.
| |
| Deputy Dumbya Dawg 2007-02-05, 1:25 pm |
|
"crhras" <crhras@sbcglobal.net> wrote in message
news:yAKxh.7925 I had
: > an extra hole drilled in my countertop after
installation for a soap
: > dispenser. It cost me $100.
Saw them do this the other day on this old house the
episode before the wrap party for the Boston home they
are finishing this week. He put a diamond hole saw in a
4 1/2 inch angle grinder. They build a little dam
around the hole site with duct tape and filled it with
water to lube the hole. Looking at that bit I would bet
it cost more than a hundred bucks.
peace
dawg :
:
| |
| John Reddy 2007-02-05, 9:25 pm |
| In article <CsLxh.18998$pQ3.7460@newsread4.news.pas.earthlink.net>,
"Deputy Dumbya Dawg" <Deputyy_Dumbyaa_Dawg@whiteehouuse.gov> wrote:
> "crhras" <crhras@sbcglobal.net> wrote in message
> news:yAKxh.7925 I had
> : > an extra hole drilled in my countertop after
> installation for a soap
> : > dispenser. It cost me $100.
>
>
> Saw them do this the other day on this old house the
> episode before the wrap party for the Boston home they
> are finishing this week. He put a diamond hole saw in a
> 4 1/2 inch angle grinder. They build a little dam
> around the hole site with duct tape and filled it with
> water to lube the hole. Looking at that bit I would bet
> it cost more than a hundred bucks.
>
>
> peace
> dawg :
> :
Bingo!!
They got the tools, they got the expertise. You got the idea you can do
it yourself.
All I'm saying is weigh the options.
| |
| Chas Hurst 2007-02-06, 3:25 am |
|
"John Reddy" <johnreddy@contbuilding.com> wrote in message
news:johnreddy-001660.22061305022007@news.verizon.net...
> In article <CsLxh.18998$pQ3.7460@newsread4.news.pas.earthlink.net>,
> "Deputy Dumbya Dawg" <Deputyy_Dumbyaa_Dawg@whiteehouuse.gov> wrote:
>
>
> Bingo!!
>
> They got the tools, they got the expertise. You got the idea you can do
> it yourself.
>
> All I'm saying is weigh the options.
Diamond core bits can be rented rather cheaply.
| |
|
| What are you putting in the cutout that requires nice round corners? Both my
cast iron sink, and JennAir cooktop have wide mounting flanges, that will
hide rough corners in the cutout.
When the original professional installer put in the countertop the cutouts
were only partially made before the countertop was set.
The long straight cuts were made in his shop but the corners were still
attached. Once the countertop was installed he built cribbing to support the
cutout from bellow, then used an angle grinder to complete the cut.
Admittedly the corners were rough, but the appliance mounting flange covered
them and all was well. When I re-cut the hole for my new JennAir cooktop it
actually required square corners.
I few thoughts about the diamond cutting disk I used. It is designed for
straight cuts, and while it can be to shape a curve it requires some
patience and skill. There might be other disks or bits that are better
suited for curved profiles.
Jeff
"crhras" <crhras@sbcglobal.net> wrote in message
news:mxKxh.7923$O02.3870@newssvr11.news.prodigy.net...
>
> Right, I've done a ton of cutting and it's cake but in order to get the
> nice rounded edges for an underrmount sink you need to grind, right ?
> Someone told me to use a contour blade. I bought one but I'm not sure how
> to use it.
>
> Curt
>
>
>
> "Jeff" <jeffs@NoSpamLamSam.com> wrote in message
> news:aKWdnaDO0oFb2FrYnZ2dnUVZ_tGsnZ2d@comcast.com...
>
>
| |
| crhras 2007-02-06, 1:25 pm |
|
I'm using under mount sinks which don't have flanges to hide the cutout.
"Jeff" <jeffs@NoSpamLamSam.com> wrote in message
news:4qudnWDZEZyNFVXYnZ2dnUVZ_qisnZ2d@comcast.com...
> What are you putting in the cutout that requires nice round corners? Both
> my cast iron sink, and JennAir cooktop have wide mounting flanges, that
> will hide rough corners in the cutout.
>
> When the original professional installer put in the countertop the cutouts
> were only partially made before the countertop was set.
> The long straight cuts were made in his shop but the corners were still
> attached. Once the countertop was installed he built cribbing to support
> the cutout from bellow, then used an angle grinder to complete the cut.
> Admittedly the corners were rough, but the appliance mounting flange
> covered them and all was well. When I re-cut the hole for my new JennAir
> cooktop it actually required square corners.
>
> I few thoughts about the diamond cutting disk I used. It is designed for
> straight cuts, and while it can be to shape a curve it requires some
> patience and skill. There might be other disks or bits that are better
> suited for curved profiles.
>
> Jeff
>
>
> "crhras" <crhras@sbcglobal.net> wrote in message
> news:mxKxh.7923$O02.3870@newssvr11.news.prodigy.net...
>
>
| |
| crhras 2007-02-06, 1:25 pm |
|
From my calculations, if I spend $1000 on tools, I'm still coming out way
ahead on this project alone given the amount of granite I need and the way
fabricators mark the stone up.
"John Reddy" <johnreddy@contbuilding.com> wrote in message
news:johnreddy-001660.22061305022007@news.verizon.net...
> In article <CsLxh.18998$pQ3.7460@newsread4.news.pas.earthlink.net>,
> "Deputy Dumbya Dawg" <Deputyy_Dumbyaa_Dawg@whiteehouuse.gov> wrote:
>
>
> Bingo!!
>
> They got the tools, they got the expertise. You got the idea you can do
> it yourself.
>
> All I'm saying is weigh the options.
| |
|
| Finally.... A chance for me to give an opinion...........
Undermount sinks are a fad, and overrated. The overhang of the countertop
where it mates with the fixture is a difficult spot to keep clean and a
great location for bacteria to grow and stains to set.
Jeff
"crhras" <crhras@sbcglobal.net> wrote in message
news:084yh.59230$wc5.13214@newssvr25.news.prodigy.net...
>
>
> I'm using under mount sinks which don't have flanges to hide the cutout.
>
>
>
> "Jeff" <jeffs@NoSpamLamSam.com> wrote in message
> news:4qudnWDZEZyNFVXYnZ2dnUVZ_qisnZ2d@comcast.com...
>
>
| |
| Steve Barker 2007-02-07, 3:25 am |
| Not to mention you'll never be able to change the sink again.
--
Steve Barker
"Jeff" <jeffs@NoSpamLamSam.com> wrote in message
news:ud6dnVC1QIqqu1TYnZ2dnUVZ_hOdnZ2d@comcast.com...
> Finally.... A chance for me to give an opinion...........
> Undermount sinks are a fad, and overrated. The overhang of the countertop
> where it mates with the fixture is a difficult spot to keep clean and a
> great location for bacteria to grow and stains to set.
>
> Jeff
| |
| crhras 2007-02-07, 9:25 am |
|
The countertop shouldn't overhang the sink.
"Jeff" <jeffs@NoSpamLamSam.com> wrote in message
news:ud6dnVC1QIqqu1TYnZ2dnUVZ_hOdnZ2d@comcast.com...
> Finally.... A chance for me to give an opinion...........
> Undermount sinks are a fad, and overrated. The overhang of the countertop
> where it mates with the fixture is a difficult spot to keep clean and a
> great location for bacteria to grow and stains to set.
>
> Jeff
>
> "crhras" <crhras@sbcglobal.net> wrote in message
> news:084yh.59230$wc5.13214@newssvr25.news.prodigy.net...
>
>
| |
| crhras 2007-02-07, 9:25 am |
|
Of course you can change the sink.
"Steve Barker" <ichasetrains@some.yahoo.com> wrote in message
news:aPWdnRLivNdHyFTYnZ2dnUVZ_tWhnZ2d@giganews.com...
> Not to mention you'll never be able to change the sink again.
>
> --
> Steve Barker
>
>
> "Jeff" <jeffs@NoSpamLamSam.com> wrote in message
> news:ud6dnVC1QIqqu1TYnZ2dnUVZ_hOdnZ2d@comcast.com...
>
>
| |
| Steve Barker 2007-02-07, 1:25 pm |
| Oh really? And just how is the sink supported? You'd have to remove
whatever is holding it there to get a new on in. And then it would have to
fit through the cabinet doors. Do explain.....
--
Steve Barker
"crhras" <crhras@sbcglobal.net> wrote in message
news:oplyh.3519$4H1.434@newssvr17.news.prodigy.net...
>
> Of course you can change the sink.
>
>
> "Steve Barker" <ichasetrains@some.yahoo.com> wrote in message
> news:aPWdnRLivNdHyFTYnZ2dnUVZ_tWhnZ2d@giganews.com...
>
>
| |
|
| crhras wrote:
> From my calculations, if I spend $1000 on tools, I'm still coming out way
> ahead on this project alone given the amount of granite I need and the way
> fabricators mark the stone up.
>
>
> "John Reddy" <johnreddy@contbuilding.com> wrote in message
> news:johnreddy-001660.22061305022007@news.verizon.net...
>
>
>
>
From what you have posted you will have a BIG mess if you try to do
this yourself. You have stated that you are trying to cut a finised
moulded cutout in a granite slab for an undermount sink. This means you
will have to cut a very precise hole and then mould the edge of this
hole with a router and then polish that edge. This will be a very
involved process in the field. You can look at routers and bits for this
purpose at places like www.masterwholesale.com. They also sell polishing
kits/pads and abrasives for the subsequent steps. The router bit alone
might cost 400-500 dollars. This process is normally done in a shop with
a CNC router. This is not something you do with a hand held woodworking
router or a grinder.
If I were you and I were really trying to pull this off on my own I
would go for a square edge sink hole. You would need a diamond core bit
to match your needed radius at the sink corners (square/rectangular
sink), a diamond blade, and a polishing set. It will be a LOT of work
and a LOT of mess and will probably result in a substandard result as
compared to a shop doing it but that may be acceptable to you. You could
punch holes at each corner with the core bit, cut to those holes with a
diamond blade, then polish a day or two. The end result could be
anything from a disaster to somewhat acceptable.
If the hole needs to be oval, round, or must have a routed edge, I would
not even consider doing it.
Mark
| |
| crhras 2007-02-08, 3:25 am |
|
Seems to me like you did a pretty good job of explaining it.
"Steve Barker" <ichasetrains@some.yahoo.com> wrote in message
news:2JCdnaYnGqmealTYnZ2dnUVZ_rSjnZ2d@giganews.com...
> Oh really? And just how is the sink supported? You'd have to remove
> whatever is holding it there to get a new on in. And then it would have
> to fit through the cabinet doors. Do explain.....
>
> --
> Steve Barker
>
>
>
> "crhras" <crhras@sbcglobal.net> wrote in message
> news:oplyh.3519$4H1.434@newssvr17.news.prodigy.net...
>
>
| |
| John Reddy 2007-02-08, 9:25 am |
| In article <MNtyh.20180$yx6.16659@newsread2.news.pas.earthlink.net>,
M&S <no@no.com> wrote:
> crhras wrote:
>
> From what you have posted you will have a BIG mess if you try to do
> this yourself. You have stated that you are trying to cut a finised
> moulded cutout in a granite slab for an undermount sink. This means you
> will have to cut a very precise hole and then mould the edge of this
> hole with a router and then polish that edge. This will be a very
> involved process in the field. You can look at routers and bits for this
> purpose at places like www.masterwholesale.com. They also sell polishing
> kits/pads and abrasives for the subsequent steps. The router bit alone
> might cost 400-500 dollars. This process is normally done in a shop with
> a CNC router. This is not something you do with a hand held woodworking
> router or a grinder.
>
> If I were you and I were really trying to pull this off on my own I
> would go for a square edge sink hole. You would need a diamond core bit
> to match your needed radius at the sink corners (square/rectangular
> sink), a diamond blade, and a polishing set. It will be a LOT of work
> and a LOT of mess and will probably result in a substandard result as
> compared to a shop doing it but that may be acceptable to you. You could
> punch holes at each corner with the core bit, cut to those holes with a
> diamond blade, then polish a day or two. The end result could be
> anything from a disaster to somewhat acceptable.
>
> If the hole needs to be oval, round, or must have a routed edge, I would
> not even consider doing it.
>
>
> Mark
Exactly.
Not only that. Have you considered whether there is clearance for the
router and the polishing tools at the backsplash? Those are not small
tools.
| |
| crhras 2007-02-08, 9:25 am |
|
Sorry, I didn't mention that this is completely new construction.
The slabs will be fabricated in a large garage with access to water, etc.
and then installed over the cabinets.
"John Reddy" <johnreddy@contbuilding.com> wrote in message
news:johnreddy-062A67.06405608022007@news.verizon.net...
> In article <MNtyh.20180$yx6.16659@newsread2.news.pas.earthlink.net>,
> M&S <no@no.com> wrote:
>
>
> Exactly.
>
> Not only that. Have you considered whether there is clearance for the
> router and the polishing tools at the backsplash? Those are not small
> tools.
| |
|
| crhras wrote:
> Sorry, I didn't mention that this is completely new construction.
> The slabs will be fabricated in a large garage with access to water, etc.
> and then installed over the cabinets.
>
>
> "John Reddy" <johnreddy@contbuilding.com> wrote in message
> news:johnreddy-062A67.06405608022007@news.verizon.net...
>
>
>
>
I would say you will still be looking at quite a chore. The only
experience I have with the process is having had to cut unfinished edges
on a few granite counter tops and the occasional faucet/sprayer hole. I
have done a bit of concrete polishing as well.
Like I said before. Perhaps going with a bit more simple shape (square
edge, eased) you could perhaps make something work. You have to realize
that you will have vast amounts of water (read hundreds of gallons) and
the associated slurry to deal with. This grinding and polishing is
normally done on a fabricating table which collects this water and
slurry to a settling tank for reuse. You could perhaps build a quick
grinding table out of ply lined with poly and a shower drain in one end
run to a few 55 gallon drums. Pump out of the drums to grind/polish and
let them settle out overnight. Set your slabs up on a couple blocks
inside the table.
With high quality smooth diamond blades on your saw, a good guide, and
water, you could perhaps come out with smoother rough cuts minimizing
polishing. Square edges eased would eliminate the need for the routing
step. Its a major undertaking but your posts sound like you are determined.
A good trial, and probably the cheapest, would be to go to a granite
supplier and ask them if you could buy a few of their scabs (broken
corners, scraps, and so on). Take them home and get started. You will
have to invest in the equipment for the tests but at least you wont be
out the time on the actual pieces and the material if you find its too
difficult.
Finding an affordable saw that will allow you to wet cut without getting
fried may be a tough one. I have seen small trim saw sized hand held
cutters with water feeds for sale at the home centers however with the
amount of cutting you will have I would suggest buying them by the dozen
and a lot of blades. Perhaps a decent but cheap double insulated
circular saw and rig up your own water feed. Buy a pair of insulating
rubber gloves and work of a GFI. The GFI will probably trip continuously
but you at least wont get fried. Cutting the slabs dry will result in a
tremendous amount of grinding and polishing.
Good or bad it would be interesting to hear your results,
Mark
| |
| crhras 2007-02-09, 3:25 am |
|
"M&S" <no@no.com> wrote in message
news:6TNyh.22182$w91.2835@newsread1.news.pas.earthlink.net...
> crhras wrote:
>
>
> I would say you will still be looking at quite a chore. The only
> experience I have with the process is having had to cut unfinished edges
> on a few granite counter tops and the occasional faucet/sprayer hole. I
> have done a bit of concrete polishing as well.
>
> Like I said before. Perhaps going with a bit more simple shape (square
> edge, eased) you could perhaps make something work. You have to realize
> that you will have vast amounts of water (read hundreds of gallons) and
> the associated slurry to deal with. This grinding and polishing is
> normally done on a fabricating table which collects this water and slurry
> to a settling tank for reuse. You could perhaps build a quick grinding
> table out of ply lined with poly and a shower drain in one end run to a
> few 55 gallon drums. Pump out of the drums to grind/polish and let them
> settle out overnight. Set your slabs up on a couple blocks inside the
> table.
>
> With high quality smooth diamond blades on your saw, a good guide, and
> water, you could perhaps come out with smoother rough cuts minimizing
> polishing. Square edges eased would eliminate the need for the routing
> step. Its a major undertaking but your posts sound like you are
> determined.
>
> A good trial, and probably the cheapest, would be to go to a granite
> supplier and ask them if you could buy a few of their scabs (broken
> corners, scraps, and so on). Take them home and get started. You will have
> to invest in the equipment for the tests but at least you wont be out the
> time on the actual pieces and the material if you find its too difficult.
>
> Finding an affordable saw that will allow you to wet cut without getting
> fried may be a tough one. I have seen small trim saw sized hand held
> cutters with water feeds for sale at the home centers however with the
> amount of cutting you will have I would suggest buying them by the dozen
> and a lot of blades. Perhaps a decent but cheap double insulated circular
> saw and rig up your own water feed. Buy a pair of insulating rubber gloves
> and work of a GFI. The GFI will probably trip continuously but you at
> least wont get fried. Cutting the slabs dry will result in a tremendous
> amount of grinding and polishing.
>
> Good or bad it would be interesting to hear your results,
> Mark
>
Thank you very much for your comments. I was thinking that I could cut the
granite dry and then grind the rounded surfaces before polishing. That's
what the granite tool supply shop told me i could do. They should know what
they are talking about but you never know. Since you are interested, I will
keep the group posted. Probably wont' start this project for a couple more
weeks.
|
|
|
|