[Info-vax] Re 3D Printers (was Re: Nice printers for OpenVMS?)

[JohnF]

Stephen Hoffman <seaohveh at hoffmanlabs.invalid> wrote:
> On 2012-08-06 10:38:07 +0000, JohnF said:
> 
>> What are the rigorous geometrical/topological/whatever contraints
>> imposed on the family of shapes that can be constructed by this process?
> 
> With various of the available plans <http://www.thingiverse.com>, 
> comparatively few, actually.
> 
> Here's one of the available options <http://www.makerbot.com>.
> 
> Might want to <http://www.makerbot.com/docs/> for details, of course.

thingiverse.com indeed shows an amazing variety of printable shapes
that I wouldn't have guessed it could do. Wonder if it could do
a klein bottle, or other such stuff. A little more googling came up
with some pages like
   http://avillage.web.virginia.edu/rpc/FDM.pdf
(where fdm=fused deposition modeling, better for googling than 3d printing),
which touched on constraints, but still no rigorous mathematical def.
-- 
John Forkosh  ( mailto:  j at f.com  where j=john and f=forkosh )