Thread: lapping a charnley forest?

ok gents,

what do you who own charnleys, use to lap them flat and what stages etc of wet and dry do you use? 120 grit moving up to 1k?

your thoughts and personal experience would be great as i have a charnley bought and on its way and i know it needs lapped!

thanks

Originally Posted by Pistol

ok gents,

what do you who own charnleys, use to lap them flat and what stages etc of wet and dry do you use? 120 grit moving up to 1k?

your thoughts and personal experience would be great as i have a charnley bought and on its way and i know it needs lapped!

thanks

120 will be nice to start but don't go more then 600. i think it is unnecessary.
Some people like to go 1k level but it is too much perfection in my opinion.gl

see thats what i was thinking, surely to make it a fine finisher it need tp be fairly smooth anyway? no?

600 would finish it fairly smooth anyway i would say

Whether it's unnecessary or not I like to lap all my finishers to 2k grit sanding paper. Makes them feel silky smooth. Once a CF is lapped with 120 grit it doesn't take more than a few circles to lap them higher.

I start with 120 grit sanding mesh then move to sanding paper 120, 240, 400, 800 and finish on 2000 grit.

Too much perfection? But that’s what we’re in business for my freind. I know it’s not necessary but it sure makes the stones look pretty. I don’t get to use my stones everyday but I do look at them. I want mine looking nice and shiny while they wait to get used..




Perfection is being able to shoot a bullet through the same hole consistently at 100 yards without cutting paper..

I have to ask question first. Do you have already flat CF or as they often come disked, gouged or chipped? If it is flat then standard lappping system is adequate. Just expect that you spend considerably more time on the job.
If it is damaged then I start of 60 grit dry slow lapping (do not over heat the middle of the stone!!!) For those who already asking the question why not to cool it down with water? Only what I can say it feels to me like gliding too much and not enough grinding. I rather to do few hones at once rotating them on my lapping bench then be messing about for flattening.
Then I go to arround 120 and then start with water and usual system.