"Proctologically Violated©®" wrote in
message ...
"Garlicdude" wrote in message
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Proctologically Violated©® wrote:
Awl--

Volume-wise, of course.
Opinions?

I read some time ago somewhere that it was drilling.



I was under that impression also, but then like DobeDave I'm old.

Maybe with the new tooling things have changed, but then drills have
improved also.

Back in the seventies I watched a guy rough out a pocket in a moldbase.
Probably 18 to 24 inches square and 4 inches deep as I recall. He
drilled a series of large holes probably 2" dia. leaving a small web.
Took a sledge hammer and broke out the webs that were left. Getting the
first couple of webs out was hard, but after that they popped right out.

How silly of me:
Sledgehammering! Of course...
Mebbe a mawl.....


So the Rhino pocketing via drilling appears to be an established strategy.

Well, it's been around for at least 100 years. Then you would go to work
with diemaker's chisels. Now, they follow up with endmills.

The new, really aggressive insert-type drills gave it a new life. Iscar was
promoting it four or five years ago. And at least one of the CAD/CAM
companies that specializes in moldmaking wrote some routines for doing it
about the same time.

--
Ed Huntress