StrongDinosaur
YUJIAN wei, i see two features in your construction tree) Sentfus, does mirror element counts as feature?
Yes I think. I created it with 1 feature in Inventor. I´m not sure if it´s possible also in other CAD Systems. If not try it with as less as possible features.
Let the CAD system calculate the extrusion depth and angle then use those in as parameters in the actual extrusion feature. Note the 7.071 depth and the 35.26 degree angle.