All sketches dissapear when doing a new extrusion

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papyblaise
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Location: France

Re: All sketches dissapear when doing a new extrusion

Post by papyblaise »

bon enfin , Quebec c'est français , donc protusion , extrusion , pad c'est équivalent
parcontre dans PartDesign , il est interdit d'avoir 2 objets dans le même body (désolé body n'est pas non plus québecois :lol: )

well finally, Quebec is French, so protusion, extrusion, pad is equivalent
however in PartDesign , it is forbidden to have 2 objects in the same body (sorry body is not Quebecois either)
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Shalmeneser
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Re: All sketches dissapear when doing a new extrusion

Post by Shalmeneser »

How can you define INside and OUTside ?

Your file is a joke, are you a troll ? (2 bad pad with the same sketch, 2 bodies)
Which version ? (follow link in red banner)
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chrisb
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Re: All sketches dissapear when doing a new extrusion

Post by chrisb »

Think of a sketch line as a border. You can either be inside or ouside. If you are outside and you cross a border you are inside. If you are inside and you cross a border you are outside. If you have T-junctions you can find paths so that you are at the same time inside and outside. This is forbidden.
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Deon079
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Re: All sketches dissapear when doing a new extrusion

Post by Deon079 »

I agree that the sketch might be a joke. If a troll is someone who did technical drawings 47 years ago when "CAD" consisted of paper, pencil rulers and triangles then I qualify as a troll.
I am just attempting to learn CAD from the following youtuber video and ran into unexplained CAD errors.

https://youtu.be/3LiKwUFSbAw

I clearly missed something somewhere and is just requesting advice to clarify my problem.
Thank you for responding I really do appreciate it.
Regard Deon..
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Shalmeneser
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Re: All sketches dissapear when doing a new extrusion

Post by Shalmeneser »

Deon079 wrote: Fri Dec 02, 2022 7:15 pm I am just attempting to learn CAD from the following youtuber video and ran into unexplained CAD errors.
https://youtu.be/3LiKwUFSbAw
This video is bad.
A sketch with two rectangles side by side can perhaps produce a pad but the result is bad : Part_CheckGeometry.
It's worse with 2 rectangles intersecting themselves in the same sketch.
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