Thu Jan 09, 2014 4:48 pm
About 2 months ago, I bought a DMT XXC plate for lapping and flattening. I have used it but not what I would consider a lot. It appears that on one end I have worn off more coating than the other end. I don't think I am putting much pressure on it. Do any of you have ideas or suggestion on what is causing this or how to avoid it. I am using it on Shapton GS.
Thu Jan 09, 2014 9:16 pm
Mine looks the same way and I've beat the heck out of it. Still works OK but I'll never purchase another. As long as it works for its intended purpose don't worry about it.
Thu Jan 09, 2014 9:21 pm
Mine is the same way. I bought an Atoma a couple months ago, no more DMT's for me. I'm using the DMT for repairs until it dies completely.
Thu Jan 09, 2014 9:28 pm
Yep. Once you experience the Atoma difference, I only have a 600 at this time, you'll never go back to the DMT.
Thu Jan 09, 2014 10:09 pm
Fri Jan 10, 2014 1:01 am
The Atomas ARE all that. I have the 140, 600, & 1200, and they all perform impeccably on steel, ceramic, & stone. I just wish they made a 3µ.
Fri Jan 10, 2014 11:19 am
I've used the Atoma 140 for about a year now, used it mostly for lapping followed by stock removal. IMO, when used for lapping, I wouldn't recommend using it on anything lower than 1K grit; I've experience diamond fallout when using it on my sub 1K stones. I now use my low grit stones as self lapping against my other low grits, I.e. 150 on 400. I find that if I lap them briefly after each session it doesn't take much time plus I save the life of my expensive diamond plates.
Fri Jan 10, 2014 12:08 pm
I haven't had that problem.
Fri Jan 10, 2014 12:39 pm
I've also had diamond fallout on the Atoma 1200 simply using it as a slurry stone. I'm not sure if the nubatama bamboo matrix presents more of a challenge for the diamond bonding on the atoma than other stones, but it's worth mentioning for the benefit of other readers. Obviously using plenty of water and sliding the plate off the stone verses pulling it off the stone can help, lessening the suction.
Fri Jan 10, 2014 1:27 pm
Jeff B wrote:I haven't had that problem.
Something is amiss somewhere......??
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