Est. 1998 — 27 years of woodworking knowledge
Flattening Marble Plates
Jeff Spirer
>Hi all
I have 2 marble table tops about 15 x 25".
I was thinking of using them for sharpening like a granite surface plate.
Can I use some compound and rub them together to get them flat.
Anyone do this?
Any suggestions.
Also, how flat should I be looking for.
Am I wasting my time?
Jeff
Re: Flattening Marble Plates *LINK*
Sandor in Boyds, MD
>You will want three pieces to accomplish what you want.
Check out the link. It shows an example of making a reference straight edge, but the theory can be applied to your plates.
How bad is the marble out of whack over say a 6" length? That's all you really need at any one time to sharpen. Plane sole flattening is another story...
straight edges from scratch
Re: Flattening Marble Plates
paul womack
>They are almost certainly flat enough for sharpening.
They are probably flat enough for back flattening.
They are probably not flat enough for plane sole lapping or reference work.
Given the low cost of granite surface plates, if your purpose is the first 2 I'd just use the marble as is; if your purpose is the third one, I'd buy KNOWN flat granite.
BugBear
Re: Flattening Marble Plates
Jeff Spirer
>I have a 12 x 12 Granite plate for blades.
I wanted it for big plane soles.
Using a piece of glass now.
Just hate to see them go to waste.
Jeff
Re: Flattening Marble Plates
Jim in Burlington Ontario
>Personally if the marble was good looking I'd make a pair of end tables. It's just to soft to be of much use for flattening.