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Thread: The PI razor aka the hanging edge razor

  1. #1
    Heat it and beat it Bruno's Avatar
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    Default The PI razor aka the hanging edge razor

    This was definitely an oddball project.
    It came up during a discussion about the silliness of HHT levels, and someone mentioned that for the sake of standardization, he'd need a hanging edge razor, with the edge hanging suspended below the spine with 2 legs, like the symbol for PI. We discussed the idea for a bit, I drew up a couple of sketches, and we settled on this design.

    The tang and spine are equally wide, to enhance the perception that the spine / tang was a single part, with a separate edge hanging below it. The thumbstub was chosen because without normal shoulders, your thumb might slide dangerously close to the heel. The thumbstud and the tail notch are rotationally symmetrical as well.

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    We chose for black MOP scales, that would keep the scales a bit subdued and prevent them from drawing attention away from the design feature of this razor. The spacer is also significantly thicker than normal. the reason is that normally, the blade hollows touch the scales when they close. But because a part of the hollow was missing, it would bump on top of the scales.

    This was made worse by the fact that the grind is very heavy. Early on we decided that a wedge was the way to go because that is the only way to guarantee that the loose bits of edge at the toe and the heel would be strong enough not to wobble or break. Grinding this thing was difficult because I literally felt the ends vibrating in my hands. As a result, the bevels are thicker than I would normally let them be. This too was a tradeoff we decided to make in order to keep as much steel in the edge as possible.

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    Lynn, Jimbo, spazola and 32 others like this.
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    Jimbo (02-06-2015), MattCB (03-04-2015), williamc (01-25-2015)

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    Razor Vulture sharptonn's Avatar
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    Pretty cool! Reminds of a gigantic DE blade on a stick!
    JimBC, 32t, Wullie and 5 others like this.
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    I rest my case.

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    Member Lutebro's Avatar
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    Holy cow, that thing is narley! Very unique.

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    Senior Member blabbermouth Geezer's Avatar
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    Weird...and I like it!!
    ~Richard
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    Senior Member blabbermouth Chevhead's Avatar
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    That is BADA$$!

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    Senior Member blabbermouth JimmyHAD's Avatar
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    So what is the HHT level ? Inquiring minds want to know ????
    Be careful how you treat people on your way up, you may meet them again on your way back down.

  8. #7
    32t
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    Quote Originally Posted by Bruno View Post

    This was made worse by the fact that the grind is very heavy. Early on we decided that a wedge was the way to go because that is the only way to guarantee that the loose bits of edge at the toe and the heel would be strong enough not to wobble or break. Grinding this thing was difficult because I literally felt the ends vibrating in my hands. As a result, the bevels are thicker than I would normally let them be. This too was a tradeoff we decided to make in order to keep as much steel in the edge as possible.
    Very nice.

    When I read this I wondered if it might be better to drill the holes for the slots and then finish the slots after the grinding was complete?

    Just thinking not trying to be a backseat driver!

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    stove (01-23-2015)

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    ~ Life is but a Dream ~ petercp4e's Avatar
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    That blade is killer!!! Awesome job!

    Pete <:-}
    "Life is short, Break the Rules. Forgive quickly, Kiss Slowly,
    Love truly, Laugh uncontrollably, And never regret ANYTHING
    That makes you smile." - Mark Twain

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    That thing is beautiful!

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    Damn! Damn! Damn!
    "The sharpening stones from time to time provide officers with gasoline."

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