I know DMT's do not have to be lapped. Can they be used right out of the box? or is there some kind of break in procedure?
DMT question
- Thread starter Walker
- Start date
- Thread starter
- #3
Thank you jtrops
- Thread starter
- #4
So that's it? rub a few kitchen knives over a new DMT hone and your ready to go? Sounds easier than lapping a Norton.
- Thread starter
- #6
LOL! So I take it lapping a Norton pretty much sucks?
Run some rougher stuff across your DMTs and they're good to go; you can see when the surface reflectivity changes that you've broken it in. Swirling it around on smooth concrete for a bit works fine.
Nortons, Naniwas, and other soft waterstones tend to stick to to the DMT consistent-surface plates during lapping, one of the reasons Norton's own flattening stone has those huge gaps in the lapping plane.
I'd asked DMT if they could make something similar, sort of a Norton-flattening-stone-looking Dia-Sharp plate, but their tech dept says that they've tried it and run into practical issues galore which prohibit such a design. The holes of the interrupted surface Duo-Sharp are as good as they can get ya for lapping purposes, not every bit as good at avoiding 'stiction' as the Norton flattener but still quite good and more importantly forever flat (@ ~3.5x the cost).
Nortons, Naniwas, and other soft waterstones tend to stick to to the DMT consistent-surface plates during lapping, one of the reasons Norton's own flattening stone has those huge gaps in the lapping plane.
I'd asked DMT if they could make something similar, sort of a Norton-flattening-stone-looking Dia-Sharp plate, but their tech dept says that they've tried it and run into practical issues galore which prohibit such a design. The holes of the interrupted surface Duo-Sharp are as good as they can get ya for lapping purposes, not every bit as good at avoiding 'stiction' as the Norton flattener but still quite good and more importantly forever flat (@ ~3.5x the cost).
you can run a barbers hone on the DMT, or chines 12k if you have it.
those stones are pretty hard and will break in the DMT just fine.
those stones are pretty hard and will break in the DMT just fine.
I rubbed it on my smooth cement finish on my garage. Recommended by a member a while back. But another recommendation by a member recently was to just rub a butter knife as if you where honing on it for a few minutes. Either way my DMT's work marvelous.
I like Stefan's CH12k idea
I like Stefan's CH12k idea
- Thread starter
- #12
Awesome guys, as always very informative
