Hi, V5
I select all the bars and union, and it fails, if i select two adjacent it unions.
if I then work my way round it and select the adjacent bar that fails.
I am able to do two at a time, but not then union those to others.
what is going on ?
sea urchin fails boolean union.3dm (314.3 KB)
Cheers
Steve
Not at my desk right now. This seems an odd approach. If you wanted a solid-like method, why not make a load of rotated rectangular curves, curveboolean them all for the outer perimeter, and the extrude the whole lot? This method seems a recipe for all sorts of intersection problems.
Nothing out of the ordinary. With the myriad of intersections this is difficult to calculate. Suggest you proceed differently, make your outline first in 2D, then extrude. (as suggested above)
(this was done in V8 and exported as V5)
SeaUrchinSolutionV5.3dm (3.0 MB)
As said, curveboolean.
If you want to do this from your existing model instead of drawing new 2d curves, you can quickly subselect all the top faces and curveboolean those, then extrude the result.
HTH
Jeremy
P.S. Rhino 8 has improved on Rhino 5: Unioning two adjacent bars, then unioning the next to the result and repeating around the circle does work in 8, unlike 5. Not that you would want to do this though.
Hi Folks,
I decided to do this and see Dave suggests likewise.
I was wondering why union didnt work, what was going on at the intersections of the rectangles etc,
in one large go, fail,
or doing two, worked, then add in another, fail…and why.
Steve
