Today I have already had a number of times that with boolean union a surface of a model becomes transparent? The properties simply state that the model is closed.
Does anyone know what could be the cause of this, and how I make sure this doesn’t happen again? Now I export the model to an stp file and then I import the model again.
Hoi Sander -
That means there is a bad surface in there somewhere. Can you post the file in the pre-booleaned state?
-wim
I have already overwritten the model by exporting it to an stp (step) file and then importing it again. Is there a command somewhere to restore such a surface in rhino?
Hi -
No. Since exporting to STEP somehow fixed this, it’s unlikely that you’ll get back to the original objects in any way. When you run into this again, please undo the Boolean operation and post the file.
-wim
By the way, it is not always the same model, I have it with different models. I just saw that there was a new version of Rhino. Now I’m working with the latest version again. A while ago I also had this problem, but until today it did not happen anymore.
Hi -
Without any specifics, I’d make sure to check that the document tolerances are set correctly in relation to the size of the smallest features in your model.
-wim
Hi Sander - hard to say without the file but there could be a duplicated face, or a bad face (SelBadObjects, ExtractbadFace) or a loop in a trim curve someplace, or a non-manifold dege - ShowEdges can help there.
Does the Dir command show anything unexepcted?
-Pascal
Thanks for your message. I will try the commands if the problem occurs again. I will also keep the model so that I can place it here.
