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So ive been trying to lapp my Norton combo all day. I got them all done but the 8K. After i got fed up with how long it was taking to lapp the hones, i jumped on here and did some research. I found the thread about the flattening stone not being flat. This almost made me stop but i was (i thought ) halfway done so i just kept at it. Once i get them flat ill never half to do it again and thats a plus.
you can use sand paper on a fat surface.
But the best way to go is DMT 320
The Norton lapping stone has a reputation of not being flat. I used a granite tile and some sandpaper. I eventually got a DMT when I got my PHIG cause there was no way I was going to spend all day with just sandpaper. The Norton stones are fairly soft so if you plan on honing alot of razors you are going to have to do it again eventually. I usually give mine a fresh surface every time I hone. They seem to work better that way to me.
One can usually lap a norton 8 K flat with any DMT 325 in less than 5 mins.
Make a pencil grid,do it under running water using figure 8 strokes,should not be an issue IME.
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Originally Posted by JSmith1983
DITTO on Mr Smith's advice. Lapping should be done regularly. I check my stones with a pencil grid to make sure they are flat. Flat stone equals flat edge equals nice shave.
Jerry
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I don't find that a sharpening stone doesn't need to be all that flat. It helps, but isn't worth worrying about. That said, sandpaper of sufficient coarsness, a flat surface like a table saw top, granite tile, heavy plate glass, etc. and some elbow grease can work wonders in short order.
I lapped both sides of my Norton with sandpaper face up on a flat surface. Had to go down to 180 grit wet/dry to make reasonable inroads, & then finished with a higher grit (400 on 4K, 1000 on 8K). I'm too tight/skint to fork out for a lapping stone yet - I'd probably just rip the diamonds out of a DMT anyway, I'm clumsy like that.
I watched gsgsix (not sure how he spells it sorry) video on lapping the Nortons and it didnt take hime long. I think thats what i thought was going to happen with mine. I went to SRD and i have the DMT 325 in my wish list. Ill keep at it today and see if i get to hone anything this evening. I have 4 non shave ready ebay specials that i would love to get to.
You'd be surprised what a sheet of 80 grit sandpaper will do to any stone. You have to go up in grit after that, to 220, 400 then 600, but it saves a lot of time.
I went to our local hardware store and asked if they had any lapping stones. You should of seen the looks i got :). I found a sheet of 180 grit wet/dry sandpaper. I didnt know you had to go up in grit( ill have to rehone a razor). The 180 grit leveled the 8k right up, in a matter of minutes too. But thanks for your help.
Ps. It was gssixgunner's video.
I've been using the 80 grit 3M paper to do the hard work lapping and love the results. It doesn't seem to leave any deep scratches/gouges and it's very easy to progress up to a 600 grit or further. With that said, I still covet the dmt and atoma stuff...Quote:
Originally Posted by ace
Yup. I followed Gssixgun's advice on his norton lapping video and never looked back. The only addition I made was to include the DMT 120 in my progression. I draw 4 grids for DMT 120 and DMT 325 and then before EVERY time i hone I give the Nortons a couple quick figure 8s with the 325 to ensure the hone is flat and edges are camfered.Quote:
Originally Posted by clamup1
Spent about 40 min today with a norton 220/1000 getting it flat. I used a tile and 320 wet/dry. I used the who package of sandpaper to get the high-center out on the 1000 side. I then gave it a few laps on 600. Nice and flat now and smooth.
That said, it sucked and will try something different next time. Maybe a DMT for lapping and restorations.
I have the shapton lapping plate and use that with silicon carbide. I don't think I've ever spent more than 10 minutes flattening any hone. Of course no matter what you use you had best catch it before it gets too bad.
I grid lapped my Naniwas when I first got them. All 4 of them probably didn't take over 10 minutes. Now, I just give them a few figure 8s with the lapping stone before I use them. That's what Glen does, so it's good enough for me.
I use my sharpening stones a ton as I woodwork with handtools, so I am constantly sharpening dozens of edge tools as well as my razors. I find it is far easier just to give them a short lapping on my DMT plate after every couple of sharpenings. It removes very little and keeps them dead flat with about 10/20 seconds on lapping each stone.
The Norton lapping stone Sucked for me. Wasted a lot of time with it. Anything else cuts better. I recommend anything Else. I'm using a DMT combo for leveling (and all those other things DMT's are good for).
I started off lapping my stones with a tile and sandpaper and when I finally got a DMT I never went back. I will get another before I use sandpaper again. Just seemed faster and a whole lot less of a hassle. I got my DMT though when a tile and sandpaper was taking way to long to lap a PHIG. The PHIG was the perfect stone to break in the DMT.
I have 2 Norton 1k and a 4k/8k combo I keep the 1 k's flat by lapping them together and then use a 1k to flatten the 4k/8k.
Doesn't take too long Iif you do it before every use.
I've been thinking that we need to come up with some kind of real useful purpose for the norton lapping stone.
