Geniculate drilling
Here's a video of my geniculate bannerstone drilling. I also have much more of the sequence in the atlatl forum but thought it might be of general interest so I decided to post it here too.Larry
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That's neat. How are you going to get the grit to stay in place when you drill the next hole?
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Bill, I'm going to plug the first hole with clay and let it dry before drilling. If that doesn't work, I'll try a wooden plug.LarryPS Saw tonight's episode and like the new gut a LOT more than the old...
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Here's the link to my new web page on drilling the geniculate.http://flintknapper.com/GENICULATE.htmLarry
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Here's the link to preparing the cane drill, for the second hole.Larry
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Very nice! Thank you for showing us that. What kind of stone is that? Seems like it drilled fairly easy, is it a softer stone?
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It's banded slate. Although some softer varieties exist, this one is still pretty hard. I'd say about the hardness of granite or a very hard limestone. I think the use of flint dust makes it APPEAR to...
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I've started the second hole and will add videos as I go along. Here's the first one:Read More
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It seems to be cutting slightly faster. Do you think it is because the clay from the plug is holding the grit in place longer and it is not spinning out?
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Very very interesting, thank you for documenting all this. I am experimenting with geniculate drilling right now as well, having never tried it before. I used a piece of bamboo about the same diameter...
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Here's the next video at the 1-hour, 30-minute mark. Bill, it's not going a LOT faster and I'm starting to notice that the drill is slipping into the old hole, so I'm having to angle the drill more...
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OK, thanks. I was working on a siltstone pipe, I was using a stone bit and coarse sand. The pipe got a crack in the bowl, I don't know if it was there and I didn't see it or if the pressure cracked...
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Wow, probably not, if there's a crack in it, to begin with. Good luck,Larry
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To remove the core I would just Snap it off by pushing it to one side, should break easy. Then the little stub left in the bottom could be drilled out with a drill that doesn't have a hole in it, as...
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Oh, and Larry, no, it is about 5in. from the node, I think what happened was the sand I was using had some larger grains of sand, more like super fine gravel mixed in and some of those might...
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Larry in the later video's it looks like your using a different vise. I'd like to make one do you have plans on them or some pic's. i did some searches but no Results came up. Thanks Glenn
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I'm hoping to do experiments as "archaeologically" correct as I can. We have whole cores from collectors but I haven't seen any found archaeologically. That being said, we know they are out there....
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Thanks Larry got a good view in that video. Look forward to the next one.
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I'm heading to Wintercount so there'll be about a 2 week delay until the next video.Larry
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