Main Discussion Area > Flintknapping
knapping precut slabs
Dh88:
@ghostknapper I have no clue how to post pics from my phone
@chippintuff this is my first time messing with slabs but I dont have problems with hinges when pressure flaking flakes into points.
@dalton knapper the material came from donald jones and is supposed to be heat treated. His material was highly recomended on facebook knapping groups
@mullet I abrade the heck out of the platforms, maybe im going overboard on the abrading part? I use a rubber pad glued to a block of wood also
@vinemaplebows where can I find that video?
Thanks for the replies so far guys.
Dh88
vinemaplebows:
If you google "Neolithics & flintnapping" you may figure it out. ;)
flungonin:
What is the notch for in the wood? Is this for the flake being removed? Also I can get a 1/4 to 1/2 long skinny flake, but nothing longer and never anything to go across the surface. I have a tendancy to have turtles(humps). Never been able to get rid them. Also working with debige, so the pieces are really small and mostly I have to use direct pressure. Mentioned earlier you were saying to abrade enough to get the angle for running a flake. So you really abrade past center then push in and down or just down. How far in is the tip of your Ishi stick when applied to the stone? Apologise for so many questions, but this article raised some questions I never heard before. Just trying to learn. Thanks for the paitience.
bubby:
You can get that lap knapping video at amazon.com
caveman2533:
--- Quote from: Dh88 on November 24, 2014, 01:00:04 am ---I have no trouble clearing the face on the first pass.my troulbe starts when im trying to develop convexity on the following passes. Thats when the little hinges start to show up
--- End quote ---
I think you are doing it backwards I would not clear the face first. First pass pressure or percussion should be short flakes Maybe only a 1/4 inch long and spaced about 3/8 apart. This will create convexity from the beginning. Then go back for the second, grinding it well and in between the original pass.
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