Walter & Group
This from Bruce Richards. I have not figured how to forward his attachments as yet, but the depictions are as he describes.
Gordy
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Thanks Gordy, I was guilty of imprecise use of language in casting too,
until I met Noel. He politely and gently corrected me until I got it right,
most of the time! It is important though, many of our students are
engineers or other science types. If we get the simple terms wrong it will
hurt our credibility. We can't hijack common physics terms and change their
meanings for our own use!
Noel hasn't published a paper specifically on tip path, but it is mentioned
in 2-3 differen Powerpoint presentations we do. Below is a slide showing
two different tip paths, one for a real cast, and one for a computer
simulation of a cast made with the same inputs. The point of the excercise
was to determine if the simulation math was correct, if the simulated tip
path was the same as the real tip path it can be assumed the math is right.
I can't point out which is which on this slide, but it really doesn't
matter as they are very similar indicating that the calculations are very
close to perfect. The drawing below clearly illustrates what we all know,
that tip path determines loop size/shape. I'm not sure that everyone has a
clear understanding of how tip path after RSP effects the loop though, and
that is shown nicely here. The path prior to RSP is straighter than in any
real world cast, but the theory is sound.
(Embedded image moved to file: pic18716.jpg)
(Embedded image moved to file: pic19718.jpg)
Sorry I don't have quit what you wanted Gordy, hope this is helpful.
Regards,
Bruce
S