Hello
You are aces, and I am not, I allow myself to ask for a little help.
I am currently fighting on the alignment of mechanically welded profiles without much success.
I would argue that my side A is horizontal, and my face B is vertical. They would therefore cut the C side with a bevel of a slightly bastard angle.
If these profiles are not aligned, you can see the consequence directly. and impossible to succeed. I'll give you the properties, if someone knows it well and can help me.
Click on alignment and choose vertical or horizontal and the line in the 3D sketch (or on a profile) to align your profile
In the panel, you have the Alignment box which allows you to select an edge on another profile to align your profile.
Yes, I tried to go through the alignment. But I line up either my A side or my B side, impossible to have the alignment on both at the same time
Indeed I think it's impossible to align the A and B sides at the same time as you want. You will only be able to align one of the two, because if I understand correctly your beams have 2 angles of inclination in the XYZ system? You used a 3D sketch for the positioning of these profiles, right? as a result you have a 3D cut at the end of the profile. It's not a simple bias cut that you could make in a miter box for example.
As Thom@s says , it's impossible.
If you stand on your surface C, the projected edges of your faces A and B are not perpendicular.
Either you align one of the faces (I would lean towards the vertical), or you orient your profile according to the bisector to distribute the angle on both faces.