[OpenSCAD] Rounded Polygon

nop head nop.head at gmail.com
Fri May 3 10:42:31 EDT 2019


I don't think topology is what you mean. For example a doughnut and a
teacup with a handle are topologically the same.

On Fri, 3 May 2019 at 14:54, William Adams <will.adams at frycomm.com> wrote:

> I've been working through this sort of thing myself, and have been working
> up a series of basic modules which do rounded edged (and optionally
> bottomed) pockets so as to model projects for a hobby CNC.
>
> The problem of course is working up a reasonable definition of the shapes
> in terms of parameters --- I believe the field which covers this sort of
> thing is topology?
>
> Does anyone know of any good texts on this which might be approachable to
> a layman?
>
> William
>
>
> On Fri, May 3, 2019 at 7:11 AM nop head <nop.head at gmail.com> wrote:
>
>>  I use an inverted truncated rotate_extruded teardrop on the bottom edges
>> of my rounded objects so they don't need support when printing. I assume
>> that is what a "teardrop edge" is.
>>
>> [image: handle.png]
>>
>> On Fri, 3 May 2019 at 12:05, <arnholm at arnholm.org> wrote:
>>
>>> On 2019-05-03 11:58, adrianv wrote:
>>> > So I have a rounded box with a teardrop edge at the base, a rounded top
>>> > edge, and a more rounded interior bottom edge.
>>> >
>>> > <http://forum.openscad.org/file/t2477/fbox1.png>
>>>
>>> That's very, very nice (and clever)! But what is a "teardrop edge"
>>> precisely?
>>>
>>> Carsten Arnholm
>>>
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