BROKEN BREP|BREP INTERSECTION CURVES

HI THERE, I'M TRYING MAKE HOLES IN A CURVED SURFACE USING SPLIT SURFACE.TO DO THAT FIRST I EXTRUDEd CIRCLES IN BOTH DIRECTIONS TO MAKE CYLINDERS, JOINED THEM TOGETHER USING "BREP JOIN". I'M NOW TRYING TO CREATE INTERSECTION CURVES USING "BREP/BREP" BUT SOME OF THE CURVES CREATED ARE BROKEN CIRCLES. CAN ANYONE HELP ME PLEASE.

Replies to This Discussion

Permalink Reply by David Rutten on January 15, 2015 at 5:23am

Files and geometry please.

Permalink Reply by Asad Farooque on January 15, 2015 at 6:11am

Thank you so much for your prompt reply. My internet connection is slow at the moment. I have been trying to upload files since long. I will upload them in a bit. Thanks.

Permalink Reply by Asad Farooque on January 15, 2015 at 6:05am

Sorry I forgot to upload the files in the previous post.
I tried rebuilding the surface with more divisions, it helped only a little. But still several intersection curves were broken in pieces.

Attachments:

BREP INTERSECTION_ BROKEN CURVES.gh, 15 KB

Permalink Reply by nikos tzar on January 15, 2015 at 6:08am

Hello Asad,

You will either need to internalise the starting surface or upload the rhino file as well.

Permalink Reply by Asad Farooque on January 15, 2015 at 6:11am

Thank you so much for your prompt reply. My internet connection is slow at the moment. I have been trying to upload files since long. I will upload them in a bit. Thanks.

Permalink Reply by Asad Farooque on January 15, 2015 at 6:57am

Rhino file

Attachments:

BREP INTERSECTION.3dm, 472 KB

Permalink Reply by Joe Allberry on January 15, 2015 at 7:44am

Something seems to be going on in the joining of the two Breps...

Try this:

Where the expression on input T of the move component is "-x/2" and the same vector as the extrusion. Makes it run much quicker too as it's intersecting surfaces rather than breps.

Attachments: