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  1. #1
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    Default EasyGraver sharpening fixture by GRS

    While teaching a class at GRS a couple of months ago, I tried a prototype of a new sharpening fixture designed to easily make parallel heel 120 gravers. It works extremely well, and makes incredibly accurate gravers quickly and easily and without dialing-in angles as in other fixtures.

    The EasyGraver has nothing to adjust. Simply mount a graver that's in a QC (QuickChange) holder onto the front of the fixture and tighten the lock screw. You will note that the little tab of metal that fits into the notch in the QC holder is tapered to eliminate rotational play, so expect to see a bit more space under the QC holder than you'll see when mounted on a handpiece. If it's a new graver, slide the fixture onto the toolpost using the first set of holes on the fixture and grind on a 260 grit diamond lap, and EasyGraver will produce two perfect grinds on the bottom of your graver, reshaping it from 90 to 120. This is a one-time operation as it reshapes a long portion of the bottom of the graver.

    To sharpen the face, use the middle hole of the fixture. I sharpen the faces of my gravers on a 600 grit diamond lap. EasyGraver's face angle is nearly 50 which makes it especially suited for both high speed steel and carbide gravers, making a stronger point than my usual 45 face. 50 is usually is usually a bit better for carbide gravers as they benefit from a slightly steeper face angle.

    For heeling gravers I have always avoided diamond laps and sharpened on ceramic only, as diamond can be too aggressive, resulting in heels that are much larger than needed. However, for parallel heels (especially in carbide) I find that my ceramic-only approach is much too slow, as the parallel heel (or nearly parallel heel as in EasyGraver) has more surface area to grind. So when using EasyGraver, a couple of quick swipes across my 1200 grit lap (without power) gets the heels to the proper size (in my case about 1/4mm), followed by a quick polishing on a ceramic lap. The result is a 50 face and 15 heel graver sharpened very quickly and with deadly accuracy.

    I should add that until now I've not been a user of parallel heel gravers and have been quite comfortable with gravers sharpened the conventional way. After testing and engraving with gravers made with EasyGraver, I'm now just as comfy with EasyGraver's parallel heel as I am with my standard heel gravers. It cuts really well, producing sparkling flared cuts when I need them and is capable of extremely fine shading. I can't ask for more than that.

    Since EasyGraver has no adjustments, you are locked in to one graver geometry. You can't easily change the face angle and there's no way to change to something other than 120. Fortunately, GRS is making EasySharp in 105 and 120 models, so you do have that option. What it lacks in flexibility it makes up for in speed and accuracy. While I like the flexibility of my trusty Dual Angle fixture, I rarely sharpen my 120 gravers other than with a 45 face and 15 heel, so EasyGraver is a perfect choice. If you're like me and your go-to graver is 120 or 105, then you will love this fixture. If you're a beginner and confused with dialing-in the correct angles on an adjustable fixture, then EasyGraver might be the ideal setup for you.

    EasyGraver retails for $118 and does not include the tool post. Since it's just now getting in to production, there are only a few in stock at this time.

    fixture.jpgreshaping_grind.jpgface.jpgheel.jpggraver.jpg

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  3. #2
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    Default

    Looks like a great idea and a good solution to the dial inaccuracy problem I have experienced in the past. But what if you want a 110* or something different than a 120* grind?

  4. #3
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    In the last year I have been using a 105 graver for most of my work. It gives me just a bit more angle plus some more strength for hard metals.
    I had a chance to test the 105 fixture and it works fantastic. I have no problems using the dual angle fixture either but I am also lazy.....
    The new fixture makes sharpening a bunch of gravers at a time a cinch. The other plus to it is I tend to get "rough" when I sharpen and press too hard on the fixture which sometimes moves the settings. There is nothing to move on the EasyGraver. I have one now for myself and for 90% of my sharpening needs it fills the bill.
    The "shaping" angles of the fixture were a bit too low for my preference but I am able to adjust that to my taste by adding a small shim under the QC holder in the front. I think most people will find the factory specs fine but I wanted just a bit higher angle.
    Rex

  5. #4
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    Default

    And how is the back (upper) relief ground? Didn't see images of that...


    B.
    Last edited by Brian Marshall; 07-31-2012 at 07:56 PM.

  6. #5
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    Silverchip: In your case an adjustable fixture would be best.

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  7. #6
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    That is very cool idea, although creating these to fit everybodies personal choice of "go to graver" would be never ending. But, if they ever do one in a 110 with a 45 face and 17 1/2 lift, I'll have one on my bench for sure.

  8. #7
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    Brian,
    I don;t know what they are going to make beyond the 105 and 120 15 degree lift. They picked those two as they seemed to be the most popular grinds. These won't be for everyone but it's handy and quick if you like either one of those grinds.

  9. #8
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    Yeah, a person may have to give in a little on what geometry you like, to capitalize on the convenience of this tool. You cannot expect them to make these in every variation. But still a fixture that sharpens a 110 with a 45 face and 17 1/2 lift, and triangle heel, would be a huge seller. I am sure of it :-)

  10. #9
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    Sounds good to me Brian. Or should I say "hint, hint"??

  11. #10
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    Seems to me if you wanted to change (slightly) some of the angles you could shim the tool post holder to obtain a modification.
    Tollerance is the virtue of a man without convictions.

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