LumberJocks

Question for DMT users

  • Advertise with us

« back to Hand Tools forum

Forum topic by Marty5965 posted 03-21-2013 06:43 PM 793 views 0 times favorited 8 replies Add to Favorites Watch
View Marty5965's profile

Marty5965

158 posts in 633 days


03-21-2013 06:43 PM

Topic tags/keywords: sharpening dmt diamodn stones

Hi Guys,

I scored a couple of hand planes (my first) off Ebay and started fettling them after watching about a thousand videos and reading almost every post on here about it.

When I got to the iron I realized that my 2” Spydercos, which work great on my chisels, were way to small to do a full size plane iron. So I bit the bullet and bought a couple more DMT diamond stones. After it took over an hour to establish the primary bevel on the course DMT I use to true my ceramics I knew I needed more. I now have the full set, extra course to extra, extra fine.

The irons are now razor sharp, but I don’t get the mirror finish that I get from my Spyderco ceramics.

Is this normal, or am I doing something wrong?

-- Marty, Columbus, OH, learning every day....


8 replies so far

View Kreegan's profile

Kreegan

1452 posts in 834 days


#1 posted 03-21-2013 07:16 PM

I finish off with a leather strop charged with green chromium oxide honing compound after my DMT stones. That gets my mirror polish. That step isn’t really necessary. If they’re razor sharp, then they’re good to go.

View Don W's profile

Don W

15235 posts in 1255 days


#2 posted 03-21-2013 07:53 PM

Take a look at this, http://lumberjocks.com/donwilwol/blog/33653

Edit. One more note, the extra extra fine is the 3 micron. Did you get that one? If not, you probably should, or something equalvant.

-- Master hand plane hoarder. - http://timetestedtools.com

View Marty5965's profile

Marty5965

158 posts in 633 days


#3 posted 03-21-2013 08:57 PM

Hi Don, somehow I missed that post, interesting. My top stone says extra, extra fine, which I believe is the equivalent of 8000 grit. I am wondering if I am being too aggressive and pressing too hard.

-- Marty, Columbus, OH, learning every day....

View BerBer5985's profile

BerBer5985

431 posts in 1108 days


#4 posted 03-21-2013 09:01 PM

I use the Paul Sellers method, Coarse, Medium, Fine (240,600, 1200) then leather strop charged with green stuff from Veritas. Mirror finish every time and with approx 30 sec worth of sharpening. Shaves hair like a razor. Check out paulsellers.com and see if you can’t find the video on the site.

-- Greg, Owner, Quality Carpet One, www.qualitycarpetonecrofton.com

View sikrap's profile

sikrap

1034 posts in 2047 days


#5 posted 03-21-2013 10:34 PM

Personally, I think we get too caught up with the mirror finish. I can use 2000 grit wet/dry sand paper and get a mirror finish, but its not as sharp as coming off my 13,000 grit stone which leaves a cloudy finish. IME, using water (or any lubricant) tends to leave a cloudy finish.

-- Dave, Colonie, NY

View Marty5965's profile

Marty5965

158 posts in 633 days


#6 posted 03-22-2013 01:06 AM

@Berber. Yes, I have seen him do that. I suspect my problem was that I was too impatient trying to get the primary bevel on and went too hard with the extra course. When I look at the bevel though a magnifying glass it’s almost as if there are feint scratches under the shiny part. Anyway, it shaves hair off my arm and I expect it to get better each time I hone it. Never had that problem with my ceramics, you can go as hard as you like.

-- Marty, Columbus, OH, learning every day....

View SamuraiSaw's profile

SamuraiSaw

464 posts in 652 days


#7 posted 03-22-2013 01:32 AM

Marty,

I have the same stuff from DMT. I’ve been told they still need to be broken in even though DMT says they are ready. I typically follow up with a 8000 grit waterstone to get the mirror finish.

-- Artisan Woodworks of Texas.... www.awwtx.com

View Mosquito's profile

Mosquito

4822 posts in 980 days


#8 posted 03-22-2013 01:37 AM

I was seeing the same results as you Marty. I would go through the range of DMTs (I had the same set as you, x-coarse through x-x-fine). I never quite got the mirror polish I wanted, even if the difference was purely in my head. I ended up getting a 6000 grit waterstone to finish with instead of the x-x-fine DMT, and am getting the mirror polish I was hoping for. The edge that comes off the x-x-fine is still very good, mind you, I just wanted mirror polish, I guess.

-- Mos - Twin Cities, MN -- Stanley #45 Evangelist - www.youtube.com/MosquitoMods

Have your say...

You must be signed in to reply.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics

HomeRefurbers.com

Latest Projects | Latest Blog Entries | Latest Forum Topics

GardenTenders.com :: gardening showcase