how do I improve the probability of success of Rhino 7’s “Boolean2Objects” will join two valid solids created with the same geometry? do I create overlapping interfaces versus butt joints? or is there one or more settings that need changing somewhere?
Art
Hi Art - in general, Boolean operations will fail if there are coincident surfaces unless those are planar. If edges are coincident there is a chance but I think that is generally not ideal. Other than that the first tool to use in troubleshooting Booleans is to run the Intersect command on the objects and inspect the resulting curves - these should form closed loops if both objects are closed.
-Pascal
Pascal-
thanks. “Intersect” confirms the planar face produces a closed loop and the tube’s exterior produces an intermittent loop with large gaps. what’s the recommended strategy/approach for non-planar interfaces that need to be joined? build-in interference??
Art
Hi Art - it looks to me like there is an open curve in your image.
-Pascal
Pascal-
the question is what do I do to get by with Rhino’s current capability? the welds on the curved sections of the weld need to become part of the tube object… Rhino’s center of gravity and mass properties capabilities are built on the premise of one object.
Art
Hi Art - once again, please post the object as far as you’ve got it - keep in mind, Rhino lets you freely explode, extract, trim, join surfaces - you do not need to think in terms of solids for all operations on the way to getting a closed solid - in fact in a surface modeler like Rhino that is a recipe for frustration.
-Pascal
Pascal-
file with “progress” to date is attached. note three “welds” connecting straight joints are done and fine; the three “welds” connecting bent tubing joints are done, water tight, and not fine! one of them has been converted to an interference interface that also doesn’t join… all three problematic “welds” were created with three surfaces confirmed water tight by the “Create Solid” tool. the discontinuity in magnification unfortunately coincides with where I’d like to work on the 4K monitor; the weld is 0.03125" x 0.03125"…
Art
stepped primary tube revC.3dm (3.0 MB)