[OpenSCAD] Difference between modelling with Openscad and Freecad

A. Craig West acraigwest at gmail.com
Thu Oct 3 07:54:26 EDT 2019


It occurs a lot more often when you are trying to work with imported shapes

On Thu, 3 Oct 2019, 07:34 nop head, <nop.head at gmail.com> wrote:

> I just don't come across that in practice. If an object has an important
> dimension, that is usually input parameter of the object, so even if it is
> created with an intersection, or a difference, the part that does the
> removal has to be positioned so that it gives the required important
> dimension. That may need some trig but it is never more than I learned at
> high school 40 years ago and can still remember, so I wouldn't call it
> complex. Just a bit of triq and some circle intersection equations that I
> Google for.
>
> Why would you do some arbitrary intersection and then try to find the
> resulting dimensions?
>
> On Thu, 3 Oct 2019 at 12:21, Steven Dick <kg4ydw at gmail.com> wrote:
>
>> What OpenSCAD is missing that traditional cad programs have is the
>> ability to "snap". two pieces together.
>>
>> Sure you can keep track of where you put the holes, etc., but
>> something like intersection() creates new surfaces that may be
>> difficult to find the edges and surface tangents of, may require
>> complex trigonometry and/or geometry to calculate...
>>
>> On Thu, Oct 3, 2019 at 6:56 AM Troberg <troberg.anders at gmail.com> wrote:
>> >
>> > Neat solutions, nophead, but, as I said, it can be done in other ways,
>> but
>> > sometimes, it would be nice to do be able to ask objects for their
>> > properties. Syntactical sugar has its place as well.
>> >
>> >
>> >
>> > --
>> > Sent from: http://forum.openscad.org/
>> >
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