Rebar shape 51

[Anonymous]

Hello,

i have a problem in rebar shape 51 when i draw it on section I NOTICED that dimension C &D is graded out. as well as dimensions (A,B,C &D) cant appear in my bar bending schedule. 

im asking for help as we need to take this drawing for tender stage. 

thanks 

[ovidiu_paunescu]

Shape 51 is modeled with hooks at the end.

C & D are assigned as the hook lengths. The are greyed out because the hook lengths are automatically calculated based on settings inside the project, not the family

It's the same for any shape where you set a shared parameter equal to a hook length