Inconsistent Graph Vertices when trying to combine (cut) two bodies

[paramax55]

I am trying to make a jig for a milling operation and I think I may just be trying to push Fusion 360 beyond what it wants to do. The part labeled "yoke" is an STL that I downloaded and was intended to be a 3D print. I have cut it out of aluminum and I need to do a couple of post processing operations. The hole that I need to drill is at a strange angle and there is no easy way to hold this thing in a vise - unless I 3D print a temporary jig, then it's trivial.

I tried to make a block at the correct angle, then use the combine tool to cut the yoke out of the middle of it. I have a feeling that all of the triangles are too much for Fusion to deal with? Is there a better way to do this? Is this simply not going to work?

[davebYYPCU]

Try modelling the hole cavity as a solid for Combine Cut, to reduce the area the combine would have to deal with.

Might help....

[jeff_strater · Accepted solution]

First, a recommendation:  This model was created by importing a mesh, and then converting it to a BRep using the "Faceted" conversion.  This can work, but you may suffer pain in the process, this being an example.  Better to try to re-model this in Fusion, but I understand that can be painful.  

OK, that out of the way, I can help you make progress.  Combine hates coincident geometry:

so, editing your block so that it more cleanly intersects your body will allow the Combine to succeed.  see the screencast.  I forgot to include the second part, where I trim off the excess 0.5in, but hopefully that will be obvious:

You still have a bit of a mess on the top, but you can fix that up similarly:

screencast:

[paramax55]

REALLY!!!???!!! It was THAT easy!!!???!!! I sure am glad that there are smart people sitting at the computer this late at night. Thanks!

[paramax55]

@jeff_strater 

And, yes, I have run into all sorts of troubles importing this mesh and cutting it out of aluminum. But this was the quickest way to get this part done and it was a "learn by jumping in the deep end" operation. I have learned A BUNCH in a short period of time. I wouldn't trade it for the world and I appreciate all of the help that I have gotten here in the last couple of months!

[zaippo]

Bonjour je trouve incroyable que cela existe dans fusion 360 les mise à jour son de pire en pire ce type de problème n'étais pas présent dans les ancienne version de fusion de plus on ne peux plus faire de stl dans des condition optimum, il veule quoi dégouté les utilisateur, la j'ai prit une licence SolidWorks je vérrais bien, car fusion 360 devient mauvais, cordialement.