On 2010-05-15, Searcher7 wrote:
On May 12, 1:04*am, "DoN. Nichols" wrote:
On 2010-05-11, Searcher7 wrote:
On May 10, 11:28*pm, "DoN. Nichols" wrote:
* * * * [ ... ]
But would you recommend the AXA16 for a mini(7" x 14") lathe?
* * * * Instead of the 16N? *It does give you positive rake inserts,
which are easier to break, but are perhaps better than the general
negative rake inserts on a light duty lathe such as yours. *With the
proper inserts, in which a chipbreakr groove turns it into an effective
positive rake, you get most of the benefits of the 16N toolholder.
Except the most important one for me. The option of using all six
sides of an insert.
:-)
Somehow, I doubt that you will be wearing out that many points.
[ ... ]
* * * * Cheap toolholders are cheap for a reason. *They are not as good.
For some reason this topic was busted into two threads. You responded
in one and then saw the other later.
Yes.
I also have an AXA12N, but I guess I can trade of sell that for a
AXA12. :-)
* * * * Try the 12N and see how the inserts work for you. *If they work,
go for the 16N in your size (AXA). *If not, try the 12 and see how it
works for you.
I don't know if it was known that most of what I work with will be
plastic, brass and aluminum, with some light(finish) turning and
*threading* on S.S. rods).
Note that the 16N and the 16 are useless for threading. They
are for turning/facing only. You'll need some other form of holder for
threading.
[ ... ]
I've probably been concentrating too hard on the 16N because my goal
is more toward the "all-in-one" holders so a minimum of changing time
is needed.(And of course I want to get the most out of each
insert). :-)
It is *not* an all-in-one. It is a good general purpose holder
for roughing in both turning and facing -- but not what you want for a
really nice finish.
There are a lot of things which you will eventually want to do
which require other holders and inserts. You'll need boring bars and
holders for them. You'll need threading holders and inserts, or plain
holders and appropriately ground HSS bits. I think that with the lack
of rigidity of your machine, you will not be able to use insets for
threading SS -- and you don't mention *which* SS alloy. Some are pretty
easy to work (e.g. 416). Others will fight you all the way home (e.g.
304), but I think that any of them will require too much rigidity to use
carbide inserts with your lathe.
I tend to use an extended holder with my insert tooling for
threading.
There are so many tool holders that it can be overwhelming. I'd hate
to get one only to find that there was a better option.So I'm looking
at the "Universal tool holders" to see what is possible.
http://www.aloris.com/catalog/aloris_p10-11.pdf
Those are nice when you need an edge at a particular angle and
don't want to have to shift the toolpost from its proper
square-to-the-axis position. But for general use, you would spend so
much time adjusting the angle for different things that would be better
spent dropping another holder in place for the task.
The purpose of quick-change toolposts is to save you time, to
make you more productive -- *not* to save you money in buying tooling.
(Of course H.S.S will still predominate on this lathe). :-)
And it will probably be the only thing which you can use with
the SS above.
Nevertheless, I obviously still have a lot of research ahead of me.
Indeed so.
Enjoy,
DoN.
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