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

"Jim Wilkins" <muratlanne@gmail.com> writes:

"Richard Smith"  wrote in message news:m1sezwvpqd.fsf@void.com...
>
Do have to find a way to wash away the slurry, as the "10mm" feathers
are a tight fit in the 12mm hole.  Plus want slippery metal-to-metal
contact, lubed with oil-graphite spray - don't want abrasive paste of
the slurry in the wedge-to-feathers contact, increasing wear and making
friction.
>
...

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>
I drilled dry, outdoors, and removed the dust by blowing into a 3/8"
flexible PVC tube with a 1/8" (3mm) nozzle, that I had made to restart
smouldering stove fires. The tube is long enough to keep my face away
from the dust ...

Down the mine / in the mine...
The dust would hang in the air and everyone would breath it in.
Turning up your miner's lamp to full-brightness you can see glinting
tiny particles in the air - highly likely to be silicate.  Just a test
little bit of drilling before everyone heading to surface.  Not even
"production-level" amounts of drilling.
Absolutely cannot be.

Water flood (actually not a lot of water) to get a slurry.
Nothing glinting in the air by same test of miner's lamp at
full-brightness shining along the level so bright in the beam and no
reflecting-back light (lost a hundred metres and more away).
Completely effective in that regard.

But then yes how to get the adherent slurry out of the drilled
sockets...