Results 1 to 10 of 69
Like Tree71Likes

Thread: Identifying a convex bevel caused by extensive pasted stropping

Hybrid View

Siguy Identifying a convex bevel... 01-16-2014, 09:10 PM
gssixgun Man I would love to look at... 01-16-2014, 09:35 PM
Siguy 90 Shaves w/out hitting a... 01-16-2014, 10:19 PM
gssixgun Yeah the Maintenance on the... 01-16-2014, 10:23 PM
Steel I would love to hear more... 01-16-2014, 10:44 PM
JSmith1983 I have a 4/8 Boker that I got... 01-16-2014, 11:06 PM
Siguy Yep. That sums it up. 10-20... 01-17-2014, 01:48 AM
Martin103 Personally i did a test... 01-17-2014, 02:10 AM
gssixgun :hmmm: Issue??? I can't... 01-17-2014, 02:57 AM
Steel Sounds like you're on the... 01-17-2014, 03:12 AM
fuzzychops The convexity occurs only... 01-17-2014, 06:03 PM
ScoutHikerDad IMO there's a lot of... 01-19-2014, 11:22 PM
Steel Due to this thread (thanks... 01-20-2014, 03:12 AM
fuzzychops These two images show a cross... 01-21-2014, 03:33 AM
JSmith1983 Seeing that much... 01-21-2014, 07:52 PM
Kefka First of all, COOL PIC!! Do... 01-25-2014, 09:31 PM
fuzzychops These are the images with... 01-25-2014, 11:24 PM
Kefka Ah ok now I do of course see... 01-26-2014, 12:51 PM
Steel Edges seem to be getting... 01-25-2014, 05:27 AM
rolodave Just for clarification, is... 01-26-2014, 02:09 PM
fuzzychops Yes, although I tend to use... 01-26-2014, 03:39 PM
Ryan82 A disclaimer up front: I... 01-26-2014, 05:29 PM
Steel Those are great and valid... 01-26-2014, 07:22 PM
Catrentshaving The one question that I would... 01-26-2014, 07:37 PM
Steel Can't speak for anyone else... 01-26-2014, 07:52 PM
fuzzychops I feel like I have stepped... 01-26-2014, 08:32 PM
Kefka If there is an argument... 01-26-2014, 08:55 PM
Steel Actually, I guess some people... 01-27-2014, 10:56 PM
Euclid440 For the last couple of years... 02-05-2014, 04:30 AM
sharptonn I have found it best to stay... 02-05-2014, 04:35 AM
Steel +1 to this. You may be able... 02-05-2014, 11:35 PM
notshaveready I feel compelled to add my... 02-08-2014, 12:19 AM
Jimbo It's quite hard to get hht 5... 01-26-2014, 09:02 PM
Kefka LOL nice description! :rofl2:... 01-26-2014, 09:12 PM
Jimbo So how exactly does knowing... 01-26-2014, 09:55 PM
Steel Where do I start. Maybe an... 01-26-2014, 11:04 PM
onimaru55 Here's a thought. Hone a... 01-26-2014, 11:39 PM
rodb The big problem with the... 01-27-2014, 12:29 AM
fuzzychops Sorry I said the H word out... 01-27-2014, 12:43 AM
gssixgun I would disagree with your... 01-27-2014, 02:17 AM
edhewitt As someone who is only... 01-27-2014, 03:28 AM
AFDavis11 I love the thread. Good... 02-05-2014, 11:20 AM
fuzzychops You are absolutely correct,... 02-05-2014, 01:35 PM
Jimbo My point about hht-x is the... 01-26-2014, 11:37 PM
edhewitt Jimbo, do you mean that it is... 01-27-2014, 03:24 AM
Jimbo I suppose it's a bit like... 01-27-2014, 05:53 AM
edhewitt And as the "trial" went on... 01-27-2014, 07:35 AM
Steel "As a general rule, any... 01-27-2014, 10:40 PM
Kefka Yeah of course that is always... 01-28-2014, 01:56 AM
  1. #1
    Senior Member blabbermouth ScoutHikerDad's Avatar
    Join Date
    May 2010
    Location
    Upstate South Carolina
    Posts
    3,308
    Thanked: 987

    Default

    IMO there's a lot of theories, a lot of conventional wisdom, some dogma, and even some old wive's tales around here re stropping and honing (anyone remember "resting" the blade for 24 hours, which was a thing when I first joined here around 2010?), and then there are people like you (and sometimes me and others) who don't know any better getting great results by going against conventional wisdom.

    This is not to denigrate the awesome amount of real expertise that many experts in this game bring to the forum from years of real-world testing and experience, mind you. I've learned almost all I know about str8s (and the little I know about honing and stropping) from this forum, but ever so often I find a different route that works for me. I too tend to hit the CrOx strop probably more than some others, though not as much as you. I feel that as long as I keep it "tight and light" on the strop, it minimizes the potential for convexing, but if I paste-stropped as much as you, I'd probably occasionally hit a few laps on that 12k just for good measure.

    Ultimately, the shave is the only real test, and as I've repeated here before, a quote that is not mine: There are many roads to sharp.

  2. #2
    Senior Member blabbermouth Steel's Avatar
    Join Date
    Nov 2013
    Posts
    2,321
    Thanked: 498

    Default

    Due to this thread (thanks op) I have been stropping after every shave on iron oxide and then leather. The last few days have been excellent edges and shaves. I'll keep this routine up for the sake of science. Lol.
    What a curse be a dull razor; what a prideful comfort a sharp one

  3. #3
    member emeritus
    Join Date
    Dec 2012
    Posts
    112
    Thanked: 62

    Default

    These two images show a cross section of an edge after a Shapton 16k and then after 500 laps on CrOx on leather.

    Name:  sh16k.jpg
Views: 395
Size:  25.8 KBName:  Sh16k_500crox.jpg
Views: 395
Size:  27.2 KB

    There is no convexity after the 16k. After the CrOx stropping, convexity is created only within a few microns of the edge, even after 500 laps.
    JSmith1983, Kefka and Steel like this.

  4. #4
    Senior Member JSmith1983's Avatar
    Join Date
    Feb 2012
    Location
    Menominee,MI
    Posts
    1,624
    Thanked: 325

    Default

    Seeing that much magnification makes me wonder how we even shave with a straight looks better with a 40x loupe
    rolodave and Steel like this.

  5. #5
    Senior Member Kefka's Avatar
    Join Date
    Dec 2012
    Location
    Cork,Ireland
    Posts
    103
    Thanked: 7

    Default

    First of all, COOL PIC!! Do UWO just let you scan whatever you like? would love one of those! Second, where is the difference in the 2 pics? I don't see any convexity, all I see is that it looks like the edge has become more fragile with pieces hanging off? I do find Crox harsh after a while though. If I use it more than twice to touch up I feel like it is not as buttery smooth as it usually is, it still stays sharp though no doubt. Maybe it is because my razors are honed on a coticule though I don't know.
    Steel likes this.

  6. #6
    member emeritus
    Join Date
    Dec 2012
    Posts
    112
    Thanked: 62

    Default

    Quote Originally Posted by Kefka View Post
    ...where is the difference in the 2 pics? I don't see any convexity,
    These are the images with angle measurements included. The native angle of this razor is 16.5 degrees.
    Name:  shapton.jpg
Views: 351
Size:  28.1 KBName:  crox.jpg
Views: 340
Size:  29.4 KB
    Quote Originally Posted by Kefka View Post
    all I see is that it looks like the edge has become more fragile with pieces hanging off?
    Stropping on leather leaves particles on the edge, for example the one in the foreground. There is a bit of a foil on this, as it was given 500 laps consecutively without being used. The edge would be much smoother if I had repeatedly alternated between use and 10 or 15 laps on the CrOx. In my experience it would convex faster also, as shaving will dull the edge.
    Quote Originally Posted by Kefka View Post
    I do find Crox harsh after a while though. If I use it more than twice to touch up I feel like it is not as buttery smooth as it usually is, it still stays sharp though no doubt. Maybe it is because my razors are honed on a coticule though I don't know.
    The Coticule edge already has convexity due to the use of slurry, so it will become "too convex" much sooner than the Shapton edge.

  7. #7
    Senior Member Kefka's Avatar
    Join Date
    Dec 2012
    Location
    Cork,Ireland
    Posts
    103
    Thanked: 7

    Default

    Ah ok now I do of course see the angle difference, was just hard to spot without the guide lines! Thank you for posting this it's very interesting. I was under the impression that the coticule edge would be just as straight as an edge off a synthetic hone as when you go through the dilution stages you get less and less slurry dulling until you finally arrive at water only and you polish the edge out to its max keenness limit. May this is incorrect though I am open to correction!

  8. #8
    member emeritus
    Join Date
    Dec 2012
    Posts
    112
    Thanked: 62

    Default

    Quote Originally Posted by Kefka View Post
    Ah ok now I do of course see the angle difference, was just hard to spot without the guide lines! Thank you for posting this it's very interesting. I was under the impression that the coticule edge would be just as straight as an edge off a synthetic hone as when you go through the dilution stages you get less and less slurry dulling until you finally arrive at water only and you polish the edge out to its max keenness limit. May this is incorrect though I am open to correction!
    You are correct that dilution removes convexity, but I am making the assumption that if you use CrOx on your Coticule edge you are not achieving HHT4 off the stone like Bart does.
    I look for HHT 2/3 off the stone and strop to HHT4, and there is microconvexity in that edge. This is why Unicot is so effective; the tape compensates for the microconvexity to bring the apex in contact with the stone.
    Steel likes this.

  9. #9
    Senior Member blabbermouth Steel's Avatar
    Join Date
    Nov 2013
    Posts
    2,321
    Thanked: 498

    Default

    Quote Originally Posted by Steel View Post
    Due to this thread (thanks op) I have been stropping after every shave on iron oxide and then leather. The last few days have been excellent edges and shaves. I'll keep this routine up for the sake of science. Lol.
    Edges seem to be getting smoother and smoother. Nothing but BBS all week with no touch ups! I'm liking this IronOxide .09 micron paste from Larry @ whippeddog.
    What a curse be a dull razor; what a prideful comfort a sharp one

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •