Modelling of cast disc
Maybe you will have to go to Mirror level and rotate the axis to place everything right. Also youmay have to set a Flip checkbox on.
Next select our disc and in upper menu(where File, Edit, View buttons are placed) select Tools->Array. After that do everything as in the picture:
Get 5 details, select one of them and attach other 4 to it. Further, switch on to points level select all points and press Weld (value will have tobe matched)
Select the circle of edges in the center and press Split.
Switch to elements level and select the central part of the disc and reduce it with Scale:
Switch to Border level, select our edges and extrude them:
Right mouse click and Convert To Faces:
After that when we have selected polygons press Detach (and in the window appeared select detach to element)
At last our central part is ready.
