Main Discussion Area > Flintknapping
Indirect percussion Step problem
Sasquatch:
So maybe jackcrafty will read this. I say that cause I use indirect percussion most of the time. I learned a lot from him. However lately I have been reducing my bifaces using a bopper. I have noticed that when I switch over to the indirect I get lots of steps. How do I reduce the amount of steps for that specific " Patrick" way of Knapping? You know a copper indirect tool.
Zuma:
I know you have been around the block. I think some times I am coming around the last corner.
I think all will agree that this is a pivotal point in producing a premo point.
My thinking is that most times you transition from bigger percussion platforms to what we might
think are adequate pressure or indirect platforms.
To me, all stone has a grain or flow some what like wood grain and with knots often.
There is to me, a delicate transition ZONE.
You are basically pre form stage and have applied some heavy bopping from the core
with the rough platforms that got you to this point.
Obviously your pre form is to fragile to withstand further indirect.
Maybe it's not. Try going further with accurate percussion.
If that does not work try stiffer platforms on your in direct or adjust your angle for a shallower flake.
BTW most ABO preforms I have studied failed with a LOP at this junction.
Good question.
Zuma
TRACY:
The angle of the biface when you hit the platform is my experience. I don't do a lot of indirect but angle of blow may be something to investigate. Good luck!
Tracy
Blitzkrieg721:
I call it "Hobbit Style"..lol
I use the same method when I knapp for the most part..
It is all about the angles and the speed of the hit.. different curvatures take different angles is what I have been noticing trial and error is the only way I have improved my points..
Also different types of stone will react different to different knapping methods ..
Chippintuff:
In my experience the angle for indirect is much closer to 90 degrees than what is needed for direct. Come over some time and we will work on it.
WA
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