This has to be the funniest thing I have EVER seen with Solidworks. The part:- Base flange 1 deg edge flange No holes, edge treatment, nothing! when I try to flatten it, Solidworks crashes BIG time, straight off the screen. Sometime runtime errors and once saying solidworks has encountered an error!, DOH, I would have never have guessed! I have tried loads of different values, kfactor, bend deduction, allowance, etc... I am not even ranting, it is just soooooo *%^&$ funny, it's ............................CRAP! :-O