how to make this joint then be able to change its parameters thru a user form...i've tried different ways but it never worked with macros unlike using weld design...http://files.engineering.com/getfile.aspx?folder=fc914a5e-5e28-4406-8b30-27bb58c33d51&file=photo_catia_V_sans_ouverture_de_racine.bmp