Re: make - forge? - wedge for feathers-and-wedge rock-split

"Peter Fairbrother"  wrote in message news:uu999l$128v0$1@dont-email.me...
Are the insides of the feathers straight?
Hmm, a clamp couple of feet of 1/2" round bar in a good pipe vice, use a
thickish slitting saw on t'mill, cut off when you have them long enough,
reclamp, rinse and repeat..
noisy though :)
Peter Fairbrother
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No, they are tapered to match their side of the wedge, and the end that protrudes from the hole is quite thin. I think chatter would be a problem unless they were supported near the cut, and extended plus lowered in steps as it proceeds. Or they could be slit from mild steel rod stock in a jig that supports them at the angle.
They need to apply pressure evenly over their length, else the rock will just chip off at the hole mouth.
https://trowandholden.com/wedge-shim-sets.html