Flattening EP stones- diamond plates vs. Ben’s method

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Delphonic
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Flattening EP stones- diamond plates vs. Ben’s method

Post by Delphonic » Mon Sep 02, 2019 4:21 pm

Is there any reason not to use a diamond plate? Are there any advantages to sticking with bands loose grit on glass? Ben’s methods works fine. It’s just less convenient. But for all I know it may get the stones flatter.

Delphonic
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Re: Flattening EP stones- diamond plates vs. Ben’s method

Post by Delphonic » Mon Sep 02, 2019 5:00 pm

How flat could a sheet of glass be though? Even the cheapest diamond plates Mark sells seem to be truly flat to a degree unmatched by most glass one might use to flatten EP stones, no?

Radar53
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Re: Flattening EP stones- diamond plates vs. Ben’s method

Post by Radar53 » Mon Sep 02, 2019 5:48 pm

Hi Del,

my understanding is that plate glass is pretty damn flat.
I have always used diamond plates for flattening both EP stones and full sized freehand stones. As in previous posts I use 140 grit for up to 1k stones and 400 grit above that. It's way more convenient and I would say a lot more accurate than the glass plate method ~ could be wrong here.

Cross hatch the EP stone with pencil, use light pressure, vary between backwards & forwards strokes & figure 8's. Do this until the pencil marks disappear. Come back if you need more details on technique.
Cheers Grant

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ken123
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Re: Flattening EP stones- diamond plates vs. Ben’s method

Post by ken123 » Tue Sep 03, 2019 2:30 pm

Glass plates are quite flat and would be OK to use for flattening, but will they stay that way when being ground down with silicon carbide loose grit? Also diamond is a much harder abrasive. I would stick to diamond plates for stone flattening.

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Ken

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Otaku19
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Re: Flattening EP stones- diamond plates vs. Ben’s method

Post by Otaku19 » Tue Sep 03, 2019 5:49 pm

I have predominately used the silicone carbide and glass plate method and I can say that over time the glass will also dish. I can get thin glass at a local hardware store for just a few dollars and use both sides compared to the price of diamond plates. Diamond plates are much more convenient if you have the extra money for them.

Delphonic
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Re: Flattening EP stones- diamond plates vs. Ben’s method

Post by Delphonic » Wed Sep 04, 2019 8:18 pm

Is any one diamond plate grit well suited to flatten the full range of stones? Mark has the a low grit single sided one and a two sided higher- grits model. Would I need both or can I get by with just one? Thanks.

Delphonic
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Re: Flattening EP stones- diamond plates vs. Ben’s method

Post by Delphonic » Wed Sep 04, 2019 8:31 pm

One is the 140 grit vs. 400/1000 grit on the double-sided plate.

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Otaku19
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Re: Flattening EP stones- diamond plates vs. Ben’s method

Post by Otaku19 » Fri Sep 06, 2019 10:53 pm

I don't remember what article I read a few years ago but it showed the results after flattening a 10k chosera with a 140 grit diamond and a 1k diamond plate. The 140 grit flattened stone was coarser than the 1k but after a few sharpening passes, the 10k smoothed out. The 400 grit combo diamond stone might not be coarse enough if you have stones that are lower in grit size than the 400. You also have to be very careful if you flatten any stones with the higher grit diamond plates. You can get a lot of suction between the stone and the diamond plate which can rip out the diamonds.

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Re: Flattening EP stones- diamond plates vs. Ben’s method

Post by David_R » Fri Sep 20, 2019 9:46 pm

I've tried both. I generally used diamond plates for my EP stones, silicon carbide stones, and Shapton Glass stones. I only use the EP sand for my EP diamond matrix stones. They're a different animal.

Delphonic
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Re: Flattening EP stones- diamond plates vs. Ben’s method

Post by Delphonic » Sun Sep 29, 2019 8:48 am

David_R wrote:
Fri Sep 20, 2019 9:46 pm
I've tried both. I generally used diamond plates for my EP stones, silicon carbide stones, and Shapton Glass stones. I only use the EP sand for my EP diamond matrix stones. They're a different animal.
David— what’s your take on the matrix stones? I’m debating upgrading from stock EP stones, and shapton, nubatama, and diamond matrix are all tempting to me.

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Otaku19
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Re: Flattening EP stones- diamond plates vs. Ben’s method

Post by Otaku19 » Mon Sep 30, 2019 7:32 pm

Delphonic wrote:
Sun Sep 29, 2019 8:48 am
David_R wrote:
Fri Sep 20, 2019 9:46 pm
I've tried both. I generally used diamond plates for my EP stones, silicon carbide stones, and Shapton Glass stones. I only use the EP sand for my EP diamond matrix stones. They're a different animal.
David— what’s your take on the matrix stones? I’m debating upgrading from stock EP stones, and shapton, nubatama, and diamond matrix are all tempting to me.
If they're anything like the Venev bonded diamond stones, they'll be fantastic. I have the 6 stone set in the Venev bonded diamond stones and I was very impressed with the polish after working the full progression. Here's a video from Michael Christy on the Venev stones: https://www.youtube.com/watch?v=CpUP8lP6ilg

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