On 24/05/2014 19:32, xslittlegrass wrote:
> I tried a cubic curve and it does look better. I agree that the "broken" may
> caused by the data points.
>
> Thanks a lot for your help :)
>
>

It is a pleasure. :-D
I have posted a couple of screenshots in p.b.images along with the lathe 
code I modified, a bit. As an example to show what I did.


-- 

Regards
     Stephen

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