Thank you Trevor!  That fixed everything.



On Mon, 17 Apr 2006 15:34:30 EDT, "Trevor G Quayle"
<Tin### [at] hotmailcom> wrote:

>DeLeon Thomas <gad### [at] deleonthomascom> wrote:
>> I am trying to make a bend in a pipe using a torus then cutting off
>> three quarters with two boxes.  But when I try to rotate the object I
>> get what looks like a very thin disk.  It only shows up with a rotate
>> and not a translate.
>>
>> Where is it coming from and how do I get rid of it?
>
>Coincident surface problem between your two subtracting boxes (they are
>coincident on the x=0 plane)
>
>try:
>
>#declare bend =
>  difference {
>    torus { torusMajorRadius, pipeRadius }
>    #declare len = torusMajorRadius + pipeRadius + 1;
>    box { <0, -2*pipeRadius, -1*len>, <-len, 2*pipeRadius, len> }
>    box { <-1, -2*pipeRadius, 0>, <len, 2*pipeRadius, len> }
>    translate <0,0,torusMajorRadius>
>  }
>
>
>-tgq
>
>

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