"joe" <nomail@nomail> wrote:
> I've built a soda bottle with a bezier_spline lathe object.  It's clear glass,
> hollow and has a wall thickness.  To fill the bottle with soda I am creating
> another lathe object inside the bottle.  To prevent a coincident surface problem
> should I scale the soda larger to push the soda into the bottle wall?  Any
> better ways to fill a bottle with fluid?

Here's what I usually do with such things. Make a lathe, subtract a slightly
smaller lathe to create a hollow object, then place a slightly smaller lathe
(just smaller than the difference) inside with appropriate media definitions. In
all, you should have 3 of the same lathes, just different sizes.

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