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Thread: Under the microscope

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    Spyderco Forum Registered User Clip's Avatar
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    Mar 2012
    Forest, VA

    Under the microscope

    Had some spare time at work this evening and threw my freshly sharpened Manix 2 under the microscope. I'd like to compare a factory-sharpened edge to get a good baseline of what laser-sharp looks like. My Elmax mule should be getting to UPS tomorrow so I'll have to look at that once it comes in.

    I used a Lansky diamond system to reprofile the edge of the blade I'm photographing now. From the factory it was slightly higher than the 17 degree setting on the sharpener. The opposite side matched 17 degrees well. I used coarse, medium and fine diamond stones with a quick finish with a black hard Arkansas hone (1200 grit, maybe?)

    Not sure how this could be useful other than looking at edge quality, but it's always fun seeing stuff larger than life

    1, 22 - Manix 2, 154CM, hollow ground and 17 Lansky-sharpened
    35 - Dodo, S30V, factory hollow ground
    43, 44 - Manix 2, M4, factory full flat ground
    45 - Mule MT13, Elmax, factory full flat ground
    68, 69 - Bark River Little Creek, A2, convex ground and touched up on the black and green strops
    83 - Manix 2, M4, Lansky diamond system and black and green strops, 17 and 20
    94, 95 - Washington state quarter
    96 - Caly3, ZDP189/420J2, flat ground, Lansky diamond system and black and green strops, 17
    97 - Caly3, ZDP189/420J2, same as above but with 25 micro bevel
    99 - Lansky coarse diamond stone
    100 - Lansky medium diamond stone
    101 - Lansky fine diamond stone
    102 - Lansky black hard Arkansas hone
    122 - Reynolds aluminum foil
    137 - Manix 2, 154CM, sharpened with Edge Pro Apex
    143 - Manix 2, 154CM, after cutting white pine and cardboard
    159 - Manix 2, 154CM, after cutting white pine and cardboard, edge-on view
    160 - Ritter RSK Mk1, M2HS, factory edge

    Here's a picture of the setup:

    The stereo microscope is 10-63x magnification with a B/W camera, and the metallograph to the left will go from 50-1000x. I really want to make a jig that'll hold the blade's edge parallel to the lens so I can get some closer pictures.

    Some pictures, starting at 10x:




    It amazes me how bad little flaws look at 63x. Here's a good example:



    I did appreciate how the light found where my edge needed a little more work.

    Mods, not sure if this qualified as a general thread or should be in the pictures section. Please move if it belongs in the other!
    Last edited by Clip; 07-19-2012 at 05:00 PM. Reason: Updating table of contents, clickable links now
    Click here to zoom: Under the Microscope

    Manix2, Elmax MT13, M4 Manix2, ZDP Caly3, ZDP Caly Jr, SB Caly3.5, M390 Para2, Cruwear MT12, Techno, XHP MT16, South Fork, SB Caly3, Manix2 Ltwt, Salt I, 20CP Para2, Military Left Hand, Perrin PPT, Forum Native5, Squeak, Manix 83mm, 440V Military, Gayle Bradley, Swick3, Lil' Temperance, Cruwear Military, VG10 Jester, Terzuola SlipIt, XHP Native Ltwt, Domino, CPM154/S90V Para2, SB Stretch, D2 Para, Dfly2 Salt, Tasman Salt


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