I am trying to make a lipped cup, kinda like the one shown in the third
photo on this page:

http://www.chicagopoint.com/takiretrobakelite.html

I can clear to the inside diameter of the lip with a forstner bit I
imagine, but what kind of tool would I need to increase the inside
diameter of the cup below the lip? A hollowing tool of some kind? How
do I get a nice clean edge at the base of the lip?

wrote:
: I am trying to make a lipped cup, kinda like the one shown in the third
: photo on this page:

: http://www.chicagopoint.com/takiretrobakelite.html

: I can clear to the inside diameter of the lip with a forstner bit I
: imagine, but what kind of tool would I need to increase the inside
: diameter of the cup below the lip?

At least as it appears on my monitor, the cup has straight sides,
and appears to haver straight inside sides except for a slight widening
at the top. I'm not clear from your description how you're seeing
it.

-- Andy Barss

Sorry, I was not clear. Cups like this have a lip on the inside, below
which the cup is lined (the one in the picture is lined with cork, I
have seen others with leather lining). I tried an ASCII drawing, but
it was a mess. Picture everything below the lip (unstained) being
recessed slightly - the inside diameter of the cup increases below the
lip. Hope that helps.

wrote in message
oups.com...
Sorry, I was not clear. Cups like this have a lip on the inside, below
which the cup is lined (the one in the picture is lined with cork, I
have seen others with leather lining). I tried an ASCII drawing, but
it was a mess. Picture everything below the lip (unstained) being
recessed slightly - the inside diameter of the cup increases below the
lip. Hope that helps.


Sounds the job for a tool like
http://www.crownhandtools.ltd.uk/pro...ngscrapers.asp

Thy do that kind of work well. Only thing they really do, though.

wrote:
I am trying to make a lipped cup, kinda like the one shown in the third
photo on this page:

http://www.chicagopoint.com/takiretrobakelite.html

I can clear to the inside diameter of the lip with a forstner bit I
imagine, but what kind of tool would I need to increase the inside
diameter of the cup below the lip? A hollowing tool of some kind? How
do I get a nice clean edge at the base of the lip?


Slice what will be the bottom off the stock first. Drill the cup using
two different appropriately sized forstner bits. Glue the bottom back
on to the drilled piece. Turn the outside.

--
Jack Novak
Buffalo, NY - USA

(Remove -SPAM- to send email)

On 29 Mar 2006 09:18:31 -0800, wrote:

I am trying to make a lipped cup, kinda like the one shown in the third
photo on this page:

http://www.chicagopoint.com/takiretrobakelite.html

I can clear to the inside diameter of the lip with a forstner bit I
imagine, but what kind of tool would I need to increase the inside
diameter of the cup below the lip? A hollowing tool of some kind? How
do I get a nice clean edge at the base of the lip?

What have you got already? It's not much of a lip, and the cup
opening is probably big enough to just do it with a pointed scraper or
a spindle gouge. I've done a lot of stuff with signifigantly more of
a lip than that with regular straight scrapers and gouges. Especially
if you're lining the inside, it'd imagine it wouldn't be too tough to
get a clean enough edge with just about anything you've got.

Now if you're just looking to get another tool, that's another
story...

Well, I have a total of two turning tools at the moment - a spindle
gouge and a parting tool. I need more tools, and I was looking for the
best tool for this particular job. But if I can get a good result from
a different tool that would be more versatile, than that would be good
as well.

On 30 Mar 2006 07:59:41 -0800, wrote:

Well, I have a total of two turning tools at the moment - a spindle
gouge and a parting tool. I need more tools, and I was looking for the
best tool for this particular job. But if I can get a good result from
a different tool that would be more versatile, than that would be good
as well.

Well, it won't help much with the cup, but you might want to consider
a roughing gouge first- if your spindle gouge is anything like the one
I've got, roughing with it will bend it sooner or later.

Clearing the inside of the cup can be done with the spindle gouge, I
do most of my hollowing with a bowl gouge, and have done quite a lot
with a 3/8" spindle gouge. It's nice to have at least one scraper and
a skew chisel as well. I know a lot of folks will say a prepackaged
set is a waste of money, but I've used all of the chisels that came in
the one I got, and it's a nice way to get started if you've got the
$$$.

There are all sorts of tools that are dedicated to hollowing, but it
sounds like you could use a few more of the basics before investing a
lot of money on something like that, IMO.