Welcome to the Onshape forum! Ask questions and join in the discussions about everything Onshape.
First time visiting? Here are some places to start:- Looking for a certain topic? Check out the categories filter or use Search (upper right).
- Need support? Ask a question to our Community Support category.
- Please submit support tickets for bugs but you can request improvements in the Product Feedback category.
- Be respectful, on topic and if you see a problem, Flag it.
If you would like to contact our Community Manager personally, feel free to send a private message or an email.
Problem to Extrude

Hello everyone, I have a problem to extrude a sketch and I don't know where the problem could be.
Maybe someone can help me.
0
Answers
it's something called a non-manifold condition. There are a few ways to solve this like the ways I show below:
Avoid the bottom vertex from sharing so many lines with a very slight seperation.
https://cad.onshape.com/documents/b1f3b105d771047cfd6d66bc/w/e1160513089449271cb44c27/e/f1ce91584a9b710268c1fab1?renderMode=0&uiState=684a1140dff4e7507ce5050f