2. Make sure that
![](../../../sheetmetal/sheetmetaldesign/images/extrev_solid.png)
for extruding as a solid is selected.
3. Make sure that
![](../../../sheetmetal/sheetmetaldesign/images/extrev_cut.png)
for removing material is selected.
◦ When a sketch exists, click
Unlink to break the association with the sketch. An internal sketch is created using a copy of the sketch. Create a sketch and click
![](../../../sheetmetal/sheetmetaldesign/images/okay16x16.png)
.
◦ When a sketch does not exist, click
Define and set references. Create a sketch and click
![](../../../sheetmetal/sheetmetaldesign/images/okay16x16.png)
.
6. To create a sheet metal cut, click
![](../../../sheetmetal/sheetmetaldesign/images/smt_cut.png)
and select the type of cut to create. To create a solid cut, make sure that
![](../../../sheetmetal/sheetmetaldesign/images/smt_cut.png)
is not selected and choose one of the following options.
◦ ![](../../../sheetmetal/sheetmetaldesign/images/smt_cut_norm_both.png)
—Creates the cut by removing material normal to the driving and offset surfaces. You can create this type of cut when it is possible to unbend and bend back the model geometry on cutting areas.
◦ ![](../../../sheetmetal/sheetmetaldesign/images/smt_cut_norm_green.png)
—Creates a cut by removing material normal to the driving surface.
◦ ![](../../../sheetmetal/sheetmetaldesign/images/smt_cut_norm_white.png)
—Creates a cut by removing material normal to the offset surface.
7. To thicken the sketch, click
![](../../../sheetmetal/sheetmetaldesign/images/pfui_thin.png)
and specify a value.
8. To flip the depth direction to the other side of the sketch plane, click
![](../../../sheetmetal/sheetmetaldesign/images/extrev_flip.png)
.