Anyone hear of Dr. Marv and his resin bond diamond stones?

[Diemaker]

How is the .5 micron V2 stone working?

 

[-BaRD-]

The 0.5μm V2 stone works well.
You could say that after using the 1μm stone, the edge surface doesn’t improve much further, but the blade is still a tiny bit sharper.

My PM2 Maxamet now puts any razor to shame

 

[-BaRD-]

The surface of S35VN steel after sharpening with Dr. Marv stones. Measured using a professional interferometer.



"The surface of the CPM S35VN steel after sharpening shows extremely low roughness — Sa ≈ 1.4 nm and Sq ≈ 1.9 nm, which is already approaching the smoothness of optically polished surfaces. For comparison, an iron atom has a diameter of approximately 0.25 nm, chromium around 0.26 nm, vanadium about 0.27 nm, and niobium roughly 0.29 nm, meaning that the average surface irregularities correspond to only a few atomic layers in height.

Sz ≈ 62 nm indicates that a few more pronounced local defects or deeper scratches are still present on the surface, but overall the texture is very homogeneous and fine. The interferometric map shows only faint traces of the sharpening direction and no significant surface damage. For knife steel finished on a sharpening stone, this is an exceptionally smooth and very well-refined edge surface."

Response generated by AI.

 

[Rob Babcock]

Very nice! I hope I can swing a purchase of some of his stones eventually.

 

[Zylok]

awesome shots. Why are the

Dr. Marv is also manufacturing and replacing the previous experimental 0.5μm stone with the 0.5μm V2 stone.
I'll add the photos taken under the microscope later. I just realized I don't have them with me.

What’s the problem with the current stones that he is trying to fix or are they just 2nd gen stones?