I have been working on a project, and some of the dimensions have changed so I decided to remake the parts from scratch. But when I tried to use the Shell command on one of my new parts, I get the error "The attempted Shell operation would require a large topology change. Try with a smaller thickness."
I've tried smaller thicknesses, but nothing works. I'm just confused because it is very similar to the old part that I Shelled without a hitch.
I've attached both parts. I'm trying to Shell the inside of the part, through the circular opening. Any help or suggestions would be appreciated.
Using Autodesk Inventor 2013
Solved! Go to Solution.
Can you post a pic I don't have 2013 loaded here.. but try a thicker shell to see if that works. Sometimes small in a shell command error means thicker. So if you had .125 try .187 not .100....
You didn't indicate your desired shell thickness on the second part.
What is (8-5.136125959)/2=?
Thanks a lot, making it thicker worked!
You better check your results and verify the design intent. Do you understand the significance of my first question?
What would be the maximum wall thickness you could have with this area shelled?
(when you go over that max thickness - it works, but it isn't shelled in this thin area above the two green lines)
In your first part it is shelled in this area. Which solution do you really want?
BTW - you are still duplicating dimensions and not using symmetry about the origin. You might read this document http://home.pct.edu/~jmather/SkillsUSA%20Universit
I realized that afterwards. I'm going to change the thickness and some dimensions.
When I learned how to use SolidWorks, I was taught to start at the origin and go from there in one of the quadrants, not for symmetry about the origin. I guess old habits die hard.
I'm just starting to use Inventor so that document is very helpful. Thanks!
When I learned how to use SolidWorks, I was taught ...
You were taught incorrectly. The proceedure is the same in SolidWorks and Creo (Pro/E).
It is a question of using the "best" and "most efficient" technique, not right or wrong.