Flint Knapping - Mega Bopper Thinning Wide Bifaces Fast.

Practice thinning really wide chunks of stone.

[@sourdough283]

I’m very new to flint knapping. I have watch so many videos on knapping for beginners and stuff. But I learned so much from watching you work! Thanks for the great videos

[@EDBO23]

Thanks for watching and commenting!

[@johnmartin6140]

Thanks for the videos.....I envy your skill level .....I would like a couple 5 gal buckets of your bifaces if you ever have too many laying around.

[@steveclark5357]

I've been using one of these for about 6 months, it is my go to bopper , nothing makes those overshoot flakes like your babies ed, and so easy to make

[@ndnrelics2884]

Love it Ed, work is very slow with all this commotion! You got me threw 20 more minutes! Thanks for uploading more frequently!

[@randallbraun844]

Check out freeze cracked he helps get through this commotion too lol

[@joshpitre8962]

Well dang. That big bopper really helps send those flakes, huh?

[@rcmore1470]

That is the biggest bopper I have ever seen 😧🙀

[@chucklearnslithics3751]

When you're trimming you really choke up on that thing. Other times when you're taking a flake your grip seems to vary just a little bit. When watching a pro like you it seems like it's all muscle memory, but if someone were trying your lightweight bopper for the first time, is there some starter grip advice you might give them?

[@EDBO23]

Just keep trying and start with the smaller ones first. Thanks for watching!

[@richardwiley5933]

I'm confused on bopper sizes. Is the diameter of the copper more important than the weight, or is it a combination of the two? For example, is a large diameter copper head without weight more effective than a smaller diameter with weight added? I'm assuming that your boppers are without added weight since you call them lightweight.

[@rchrdjms62]

Hopefully you'll get a notice that someone has come and. I've been trying to find out what I might do to pressure flake. I don't seem to have the strength in my hands and wrist to use to do it. Ideas?

[@EDBO23]

See my abo pressure stick video

[@59steveo]

Watch some videos on indirect percussion flaking. This method can give you more energy to remove a large flake.

[@waterloofishing6277]

Man i want a billet like that

[@randallbraun844]

That billet size is lol

[@kyletango]

What is that leather made from? Looks like elephant skin.

[@eddiemain9681]

Buffalo

[@dansvec8759]

Is that pertynalles

[@EDBO23]

Yes

[@dansvec8759]

@@EDBO23 I really like perdanales.....I call it pertynalles

[@waterloofishing6277]

Where can i get a billet like that

[@EDBO23]

See my bopper construction video

[@bastardsonofodin4931]

What causes step fracturing?

[@EDBO23]

As the flake is forming the crack is advancing. When the crack stops as it runs out of energy the flake can still have a bending stress which can snap the flake somewhere along it's length. That leaves a crack in the rock with a piece of flake above it.

[@bastardsonofodin4931]

@@EDBO23 ...so fracturing is caused by insufficient impact energy....?

[@bastardsonofodin4931]

@@EDBO23 also, thanks for the reply....great knowledge to have.

[@EDBO23]

The step fracture is caused when a partially formed flake has a bending stress that snaps the flake somewhere along it's length after the crack propagation stops. The entire process cannot be explained in a couple of sentences. There are so many factors involved in the problem. Look up fracture mechanics in Wikipedia for further explanation. Thanks for watching!