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Author Topic: working the biface  (Read 7361 times)

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Offline iowabow

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working the biface
« on: June 11, 2011, 12:32:45 pm »
Thought I would share a cool thing that worked.  Maybe this made no difference but here is what I tried; I prepared the platformas normal and then thought I would abraid the top where there was a small step with a little junk. I did this to bring the rear rigde and the forward ridge together.


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Offline sailordad

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Re: working the biface
« Reply #1 on: June 11, 2011, 01:48:10 pm »
yup that ridge grinding is a cool trick
Shannon taught me that one awhile back
it works wonders

nice bi face by the way
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Offline Tower

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Re: working the biface
« Reply #2 on: June 11, 2011, 05:00:33 pm »
Interisting, I have never tried that.
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JustinNC

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Re: working the biface
« Reply #3 on: June 11, 2011, 07:14:40 pm »
Quote from: sailordad on June 11, 2011, 01:48:10 pm
yup that ridge grinding is a cool trick
Shannon taught me that one awhile back
it works wonders

nice bi face by the way

x2. knock that mass down a little and it'll come right off of there with the right platform set up just right.
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Offline iowabow

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Re: working the biface
« Reply #4 on: June 11, 2011, 10:36:33 pm »
This knapping thing is fun.  Something new to learn everyday.  I did not come up with the idea I think I read a post when I first got on here about someone doing it.  It sat in my brain until today.  I remember some one said " you grind the ridge? He said yes" I thought that was very odd until today. If you are trying to make the ridges match/join it makes sense. 
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Offline flecha

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Re: working the biface
« Reply #5 on: June 12, 2011, 01:24:22 am »
Good technique to keep in mind.  Thanks for sharing.
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Offline iowabow

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Re: working the biface
« Reply #6 on: June 12, 2011, 11:56:12 am »
I have encountered more problems. The stone has concret frost like flakes that are causing a lot of problems so I used a punch to remove a stack that I could not get from three directions.  The next 2 images are of the nice side and the bad side.






« Last Edit: June 12, 2011, 12:26:03 pm by iowabow »
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Offline iowabow

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Re: working the biface
« Reply #7 on: June 12, 2011, 12:31:56 pm »
After working a few now platforms.

 

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Offline iowabow

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Re: working the biface
« Reply #8 on: June 12, 2011, 12:35:58 pm »
This is the nice side

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JustinNC

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Re: working the biface
« Reply #9 on: June 12, 2011, 12:43:40 pm »
The last photo of the bad side, Id bring that platform flush with that side of the face and work the "top side" down to get ride of that coarse looking area, then on the dip just below that, Id set up a platform on the bottom, on that protrusion. Id take the ridge off just to the right of that to allow for easier flake removal, then hit the platform on set up on that protrusion and try to drive it sort of up and right in the photo and see if you can get under what looks like a cliff edge in the dip....

But dont take my word for it. You're doing better than I am lol. I'd probably miss the platforms and mess it up worse. lol

These "problem" series threads ae fun.
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Offline iowabow

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Re: working the biface
« Reply #10 on: June 12, 2011, 01:55:04 pm »
Ok good ideas.  Next post I will draw out the plan on the stone. But understand it is not set in stone!  I could not resist.
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Offline FlintWalker

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Re: working the biface
« Reply #11 on: June 12, 2011, 03:27:14 pm »
Looks like you got that under control. What I want to know is what kinda rock is that? I LOVE the looks of it!
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JustinNC

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Re: working the biface
« Reply #12 on: June 12, 2011, 04:57:51 pm »
Quote from: Saw Filer on June 12, 2011, 03:27:14 pm
Looks like you got that under control. What I want to know is what kinda rock is that? I LOVE the looks of it!

me too. its not KRF is it? or some sort of dark flint river?
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Offline iowabow

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Re: working the biface
« Reply #13 on: June 12, 2011, 05:16:54 pm »
Not sure what it is called.  It is some of the flint that leapingbare sent in the spring.  I have included a picture of the plan but it may shift a little to the left.  I was trying to get ever mm from this small stone.
« Last Edit: June 12, 2011, 07:28:47 pm by iowabow »
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Offline iowabow

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Re: working the biface
« Reply #14 on: June 12, 2011, 08:18:54 pm »
Working real hard to make sure platforms are just right before I swing.  I was able to remove the step on the good side and working very carefully on the other side not to upset the dragon in the middle.  The shape is coming around and the blade is getting thin. I would been very happy with this in Jan. Of this year but now I know there is more to be done.
   
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