Grasshopper hole cutting problem

[blcavender]

I have created a Solid Cylinder in Rhino that shows there as a Solid Polysurface and saved it as a file.

I created an extrusion in Grasshopper, then using the File Path/Import 3dm tools, I perform a Solid Difference between the GH extrusion and the file-referenced, solid cylinder.

The result appears to cut a surface through the extrusion not taking out the inside of the hole that the solid cylinder should cut.

I have tried this several ways, however I must be missing something simple as I can’t get the hole to open up.

Any suggestions would be greatly appreciated!!!

Bruce

[kev.r (Kevin)]

Post the grasshopper file with internalised geometry.

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[martinsiegrist]

Bruce, make the cylinder longer than the thickness of your part.

If the planar faces of the cylinder are coplanar with the objects surfaces, it’s more complicated to compute the intersection.

[blcavender]

Kevin/Martin,

I recreated the layout and it works fine. Gotta be pilot error on my part.

Sorry for the side trip[.

Bruce