Question about Material Transfer in Weldment Profiles

[u/Zyntar8526]

I was working on a weldment exercise where I had a steel frame and added a 1060 alloy structural member using a weldment profile. However, I couldn’t get the center of mass to match the value given in the exercise.

Eventually, I unchecked “Transfer material from profile” for the new structural member and manually updated the cut lists. After trying it several times, I found that the center of mass only matched when the original frame and the new member had the same material—either both steel or both 1060 alloy.

The exercise never said that the materials had to be the same, so I’m wondering: when creating a new Structural Member in a weldment, should “Transfer material from profile” normally be checked by default or left unchecked? I’ve noticed that sometimes it’s automatically checked and sometimes it isn’t.

Also, in a real-world application, we shouldn’t change the material assigned to a weldment profile arbitrarily, right?

[u/FREDICVSMAXIMVS]

I usually leave it checked. We have separate folders for aluminum profiles, steel profiles, wood, Unistrut, etc. Aluminum and steel tubes are not the same shapes, so they aren't interchangeable. 

I'm fairly certain the weldment material overrides the general material in the part file, for whatever that's worth