Re: [hobbicast] Re: Parting Dust question
Can you say more about how to do "proper rapping"? I'm fairly confident that
I'm not doing it right.
web site: http://rick.sparber.org
In a message dated 1/5/2008 10:25:48 A.M. US Mountain Standard Time,
and proper rapping will allow the pattern to just slide out as if I had used
5 degrees of draft.
**************Start the year off right. Easy ways to stay in shape.
- An excellent and most informative thread........ I'm getting lots of
good out of it........
On Tue, 2008-01-08 at 05:54 +0000, Gary Lekvold wrote:
> Hi Rick,
> I never dreamed this thread would grow the way it has, but that is a
> good thing, if it helps someone. A couple of points re: my initial
> description. I said I rap left and right and then up and down. What I
> should have said was, I rap in the X axis and then in the Y axis. In
> many cases I rap all around in a circular motion. Once in a great
> while I find it useful to rap very lightly in the Z axis, but not
> often. What David said about gently wrapping while pulling up on the
> draw screw is very important. It is also important to realize that you
> only want to enlarge the cavity by a few thousandths of an inch. We
> are not talkiing about fractions of an inch here. these are some of
> the subtleties and fine points I was referring to at first. Just an
> add-on thought. I bought the casting book by Ammen, at about the same
> time I bought his plating book. I have never in my life seen how-to
> books so full of gross mistakes and misinformation. I will not be
> buying any more of his books.
> --- In firstname.lastname@example.org, rgsparber@... wrote:
> > John,
> > Thanks for the additional wisdom. I will have a lot of new
> techniques to try
> > on my next casting session.
> > Rick
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