High Tech Leather Bearing Block

[mountainm]

I understand what you are saying, but where do you draw the line? Would it have more primitive point to stroll up with nothing in your pocket and find/make everything, knife included.
Where/when does it become pointless, when you turn up with a complete bow-drill kit in a nice leather bag pre-used and burnt in with a bag of manmade premade tinder, if you turn up with everything bar the hearth, or you take everything apart from the bow and the hearth, or the just take the bow string and the drill or just the string?
When does it become pure and not miss the point?

I'll let you get away with bringing your own cord.

 

[Pict]

Here are several friction fire sets made of Embauba wood in the jungle. Students made these and all of them produced fire. The ceramic bearing block is the on near the center of the photo. The other one in the photo is made from hardwood. We let them use whatever cord they have as well.