i had difficulties to cut off a part
how can i do that?
i wont to cut the blue part
There are many ways to do that, and it may depend on the way the part is bulit up.
But this is how you normally would go ahed and do it:
Create a sketch on a plane/face with the same orientation as your image. Then you select convert entities of the inner edge on the cylinder. Next you you exit sketch and use the feature extruded cut, select the end condition through all.
You may need to cut in both directions.
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