. i have modeled a forming tool with dimensions 1mm (L)x 1.8 mm(w) drafted with an angle of 15 degrees to a height of 0. 60 mm. then gave a fillet of 0.30 mm radii.... when i try to use it on my sheetmetal part having a thickness of 0. 30 mm i am getting this error: "The part's thickness may not be compatible with this form tool. The thickness must be less than the minimum radius of curvature for the form tool. " pls explain and suggest the modifications required...