Thread: DMT 8C Lapper not so flat - Any Thoughts?

Here are a couple of photos of my new DMT8C I use to lap my Naniwa stones with. It turns out that the DMT is not very flat...

OK, I'm not a master lapper yet, but do you guys think this is normal, or should I look into it? Look at the right side of the photo, I checked it on 3 different glass panels with the same result, the middle of the DMT is slightly higher than the sides. I push down slightly on the left side, then the right side lifts up, and vice versa.




And here is what this DMT did to my Naniwas. You can see the light coming through the centre when the Naniwa stones are face to face. They are all now slightly dished by the DMT8C.

My Naniwa 8K & 12K


My Naniwa 1K & 5K