I need to trim the edges of a marble vanity top that is attached to the vanity. Can anyone tell me the best blade / process for doing this?
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Replies
Ummmm, not really woodworking. Diamond blade on an angle grinder?
My understanding is that youd want to have water cooling the marble and blade as you cut it, so personally I think I'd want to remive the marble top first if possible. Otherwise, definitely a good covering of the vanity. A quick google tells me you can cut marble with jusg a circular saw with a diamond blade, but again, you have to have that water running against the blade and marble as you cut.
Cutting marble is very easy with a diamond tipped blade on your circular saw. I've made several table tops this way. I did use a small water drip on the cut - that's where things get a bit sketchy. I used rubber gloves, made sure the water drip was small and made sure I was plugged into a GFCI outlet. Still probably not the safest thing but worked very well. As I recall I did a scoring pass of about 1/8 then 3/8 then all the way through.
Good advice above buts its also incredibly cheap to have cut. Should just be stuck down with a couple beads of silicon. Pop it off and find a stone shop. Will probably do it for lunch money.
If it’s attached, it’s doubtful you’ll be able to trim all three sides with any type of blade without hitting the wall. +1 on Chucks take on having it done by a shop.
I've cut marble and concrete with a 15 dollar Skil diamond blade in a circular saw. No water. Makes a ton of dust. I wouldn't do it inside. And cutting it all the way to the wall is impossible if it is still attached. I'd take it off, and have it cut.
Or, take the opportunity and make changes. Cultured marble is just marble dust glued together. A small piece of marble, quartz, granite, etc would be cheap. Maybe just start from scratch?
Yes. Here in South Brooklyn there is a stone yard next door to Lowe’s. I’ve gotten things like 1.25 cararra cut to a template, drilled for sink, and honed for like $100. They’re happy to move the remnants out, just ask.
That dust is a very good reason for the water, I'd imagine it doesn't do many favours for your lungs (or moving saw / motor parts, or your house/electronics if cutting inside as it sounds like the plan is). Sure, you could get a high quality particulate filter mask and ensure a perfect seal for more cost, or use water for dust control or go to a stone yard.
Can't help but wonder if a hack saw blade would cut it (or several of them). They even have those hacksaw blade holders that are tiny and expose the blade to give you more room. Sure, it would be slower but if it cuts not impossibly slow. Could have a shop vac there to collect the dust as well. Just a though. I've never done it.
Whatever the method you use, and as you can see there are several, the issue will be how you end the cut. Marble is a fragile and brittle material and as you near the end of the cut the leftover piece will need to be supported unless it will break before the cut is finished and could carry a piece of the top with and ruin the project.