Mesh Boolean union issue

Hi, my name is Rubuén I’m new to the community. I’ve been using rhino for about a year and understand Booleans, however I’m always having this issue with Clients work I need to get pass this and be able to union on a dime for labor-efficiency, I know there can be various impediments that can make Boolean a hassle, I would just like to know if there’s a go to fix that usually works every time or…….

Is this Rhino 8 (mesh Boolean had a re-write in Rhino 8) ? Can you post your meshes? Thanks

No it’s the plug-in MatrixGold, it has Rhino 7 or 8 built into it. Under the matrix interface around the 4 viewports you can see the commands. I only have this photo of my mesh problem, im not allowed to have phones in the office for the clients project confidentiality. There was obviously an exception made for learning purposes here.

Hi Rubuén -

As Japhy wrote, it makes a difference if this is Rhino 7 or Rhino 8. Apart from that, we’d need a 3dm file to be able to troubleshoot this issue. You can upload confidential files from Rhino Accounts. Please add a link to this thread in the comments field on that page.
-wim

Without knowing specifically, it already looks like there is a risk here of surfaces “glancing” off each other. That large elliptical hole at the back is a potential giveaway for numerically unresolved or conflicting areas.

With this object, assuming it has circular symmetry, it looks potentially within reason to reconstruct this in NURBS, rather than as a mesh.

The elliptical hole is part of the design, it allows light to project through. My guess is there something conflicting, Ive check for certain problems that I would usually check for with regular polysurfaces if there’s duplicate surfaces, if there’s any overlapping geometry folding into its self, or just naked edges (I don’t have any to none knowledge of mesh). I move any part that isn’t booleaning to a 0.001 nudge sometimes I’m lucky sometimes I’m not

Is there any book or other resources I can try to obtain to further my education into mesh?

There are many books on modelling.

However, in this instance, I suspect that understanding the benefits of NURBS would be a far better thing than trying to Mesh Boolean your way to glory.

These solids seem ideal for replicating in NURBS and then conducting sets of trims; or you could revert to booleans.

Conducting Mesh Booleans (or booleans of any sort) can often be a guesswork and luck process, and it has been like that forever; especially when you can make far better quality surfaces.

Alternatively, if you are on Rhino 8, you could try the ShrinkWrap, QuadRemesh, and ToNurbs chain of commands, that may give things that are better to work with.

why boolean it? simply grossly overlap the bits and shrinkwrap it.

booleans are dead for jewelry yo. long live shrinkwrap.

see the end of this video for how shrinkwrap does it’s thing.

I watched your video and I get it, you constructed that shrinkwrap from a regular polysurfaces correct? Can I achieve these results on a mesh file (“shit is a meshed polysurface the same as a regular one?”) that is already existing? And if so where can I get more knowledge about how to really accomplish a shrink wrap to by scientifically accurate without compromising the composition of the clients original design? Please

I would like to understand nurbs more and I’ll make time to study them soon. I don’t wanna just Boolean just cause, I would love to have a deeper perspective on the program, it’s just for my job there’s a unspoken time limit on how long you should take on a model. And I’m pushing about 70 to 100 models a day sometimes through my computer. I’m not looking for a shortcut at all just more clarity on the best route to obtain the best results