[OpenSCAD] General approach

A. Craig West acraigwest at gmail.com
Mon Jul 8 21:49:40 EDT 2019


I usually use a 0.01 unit overlap, it really doesn't need to be much

On Mon, 8 Jul 2019, 21:38 Dan Shriver, <tabbydan at gmail.com> wrote:

> Nate: it's not a pyramid, its a series of arched hallways.  The form of
> the arch morphs between ogee and roman arch styles.   The o.  verall path
> of 1/3 of the hallways is in the shape of an ogee arch.
>
> Once I finish with that I'll put in domes and decorative buttress works.
>
> Nop head: given what you were saying about how if you had two things with
> an exact union, and then you rotated it and they came apart.  I am
> wondering if I need to rethink how to make 1/3 of the archway.  Since I
> intend to do it where I rotate it (and right now I'm using a box to exactly
> saw off what is in the next octant), I am thinking that for the ones I
> rotate I need to shift the bounding box so there is more overlap.  But how
> much do I need?  1 unit, 0.5 units????  Any ideas?
>
> On Mon, Jul 8, 2019 at 4:22 PM NateTG <nate-openscadforum at pedantic.org>
> wrote:
>
>> DanS wrote
>> > Nate: what I was asking in the original post was how to take 1/6th of
>> the
>> > hallway design my head and make 1/3.  So yes it is a mirror operation.
>> > The
>> > best way to eliminate the stuff that overlapped the next octant turned
>> out
>> > to be using a box.
>> >
>> > After that I take that whole shape and need to displace it and rotate it
>> > by
>> > 120 (I need to do that twice).
>>
>> So you're trying to make something like a triangular pyramid but with ogee
>> profiles?
>>
>>
>>
>>
>>
>> --
>> Sent from: http://forum.openscad.org/
>>
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