I have created a weldment with the structural members in place with the appropriate profile. Can anyone tell me how to restrict the profiles from moving when I change the structural member type and size? When I change the structural members the profiles are wrong. Any help would greatly be appreciated. Thanks.
The default location point is the origin in the profile sketch. So if you edit the structural member feature and switch to another type, it will place the origin of the profile sketch at the start point of the path.
So you need to make sure your profile sketches have the origin where it should be.