On Mon, 15 Dec 2003 23:22:37 GMT, "ATP"
wrote:

Harold & Susan Vordos wrote:
"ATP" wrote in message
.net...
I have my Van Norman #12 safely in my garage. I was going through the
tooling that came with it and have some basic questions concerning
the 5V collets and B&S taper adapters. From previous rec discussions
I'm under the impression that most collets are for workholding
purposes, and that end mill holders are ideal for driving end mills.
I don't see any end mill holders in my tooling set or even on ebay,
and it seems that workholding on a mill would be limited to special
operations, such as using the mill as a lathe. Are collets typically
used for end mills on these machines? I do have some B&S #7 stuff,
but it is obviously not as readily available as straight end mills.
Thanks.


Collets are a very satisfactory method of holding and driving your end
mills, and was most likely the only way the machine had been used.
While end mill adapters can be useful, they can also be a nuisance
because of the added depth necessary to accommodate them. They
are not required for manual machining, although they do serve a very
valuable service in running CNC machines, permitting consistent depth
settings where one is involved in repetitive changes of cutting tools.

Harold

That's a relief. Looks like I'm pretty well set up, then. It's a 1947
machine, apparently original paint, all the plates are clean and legible,
and everything so far works pretty smoothly.

While I use collets (30 taper) almost exclusively..I have had endmills
move in the collets, screwing up the work when taking very heavy cuts.

They tend to screw Into the work, pulling the end mill deeper into
the workpiece. I still use them, but I make sure they are TIGHT and if
Im going to make agressive cuts..I stick in an endmill holder Every
time. Normal stuff..no biggie. The Collets your VN use are pretty
darned good holders..so I wouldnt worry about having problems.

Gunner

" ..The world has gone crazy. Guess I'm showing my age...
I think it dates from when we started looking at virtues
as funny. It's embarrassing to speak of honor, integrity,
bravery, patriotism, 'doing the right thing', charity,
fairness. You have Seinfeld making cowardice an acceptable
choice; our politicians changing positions of honor with
every poll; we laugh at servicemen and patriotic fervor; we
accept corruption in our police and bias in our judges; we
kill our children, and wonder why they have no respect for
Life. We deny children their childhood and innocence- and
then we denigrate being a Man, as opposed to a 'person'. We
*assume* that anyone with a weapon will use it against his
fellowman- if only he has the chance. Nah; in our agitation
to keep the State out of the church business, we've
destroyed our value system and replaced it with *nothing*.
Turns my stomach- " Chas , rec.knives