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Thread: 3-in-1 DIY Knife Sharpening System Jig

  1. #1
    Mazay's Avatar
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    Thumbs up 3-in-1 DIY Knife Sharpening System Jig

    I made an universal jig for sharpening:
    - knives;
    - scissors;
    - chisels.


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    Altair (08-22-2020), Andyt (05-19-2020), baja (05-19-2020), Crusty (05-17-2020), dubbby (05-25-2020), Jon (05-19-2020), Quinton 357 (05-18-2020), Sleykin (05-23-2020)

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    Supporting Member Crusty's Avatar
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    That's much better than the Apex clones made from recycled plastic trash. I enjoyed seeing you use all the homemade tools to produce this sharpener as much as the project itself, and you get extra kudos for not putting on a space suit just to rub some linseed oil on the finished parts.
    If you can't make it precise make it adjustable.

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    Mazay (05-18-2020), Sleykin (05-23-2020)

  5. #3
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    Thanks Mazay! We've added your Sharpening Jig to our Sharpening category,
    as well as to your builder page: Mazay's Homemade Tools. Your receipt:




  6. #4
    Supporting Member Karl_H's Avatar
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    Quote Originally Posted by Crusty View Post
    I enjoyed seeing you use all the homemade tools to produce this sharpener as much as the project itself.
    I agree.

    Are you calculating/measuring angles for your edge, or just getting close enough to the existing angle?
    I am sure that tomato can't tell an 8 degree angle from a 9 degree angle.

    Thanks for sharing!

    Karl

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    Mazay (05-19-2020)

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    Supporting Member Crusty's Avatar
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    If you're not reprofiling an edge, the best way to set the angle is to draw on the bevel with a sharpie, then find the correct angle using light test strokes that grind fully across the edge bevel by observing the ink taken off.
    If you can't make it precise make it adjustable.

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    baja (05-19-2020), Jon (05-19-2020), Karl_H (05-18-2020), Mazay (05-19-2020), SASocal (05-26-2020)

  10. #6
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    Quote Originally Posted by Karl_H View Post
    I am sure that tomato can't tell an 8 degree angle from a 9 degree angle.
    That's a great tomato joke. You made me laugh.
    Quote Originally Posted by Karl_H View Post
    Are you calculating/measuring angles for your edge, or just getting close enough to the existing angle?
    I am using protractor application on a smartphone. It turns out a very accurate measurement.

    At first, I planned to calculate the angle according to the size of the device, this would give an accuracy of about + - 1 degree, taking into account the different projections of the knife tip. Based on the calculations, just make a set of sticks that would allow you to quickly measure the distance from the base to the bottom of the hinge. But using the application turned out to be easier, with higher measurement accuracy.
    Last edited by Mazay; 05-19-2020 at 01:45 PM.

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  12. #7
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    Quote Originally Posted by Crusty View Post
    If you're not reprofiling an edge, the best way to set the angle is to draw on the bevel with a sharpie, then find the correct angle using light test strokes that grind fully across the edge bevel by observing the ink taken off.
    This is a good tip - I use a felt-tip pen when sharpening a chisel and a scissor (I prefer to sharpen knives on the protractor)
    Last edited by Mazay; 05-19-2020 at 01:46 PM.

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