Manufacturing > Expert Machinist > Creating and Modifying Stock > To Create Automatic Stock
To Create Automatic Stock
1. Click Create Stock on the NC MODEL menu. Alternatively, click Model > Stock > Create Stock. Expert Machinist activates the Auto Workpiece Creation dashboard.
2. Select the shape of the following types of stock:
◦ Click to create a billet or a rectangular stock.
◦ Click to create a bar or a round stock.
3. Click the Placement tab and specify the coordinate system and the reference model using their respective collectors.
The reference model is selected by default and the coordinate system is newly created. At this stage, you can dynamically preview the stock.
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You can replace the coordinate system if required, but you cannot replace the reference model.
4. Click the Options tab to specify values for the units, overall dimensions, stock, and rotation offsets.
a. In the Units box, select the units.
b. In the X Total box, specify the overall dimensions for the stock in the x-direction. This value applies only for a billet stock.
c. In the Y Total box, specify the overall dimensions for the stock in the y-direction. This value applies only for a billet stock.
d. In the Z Total box, specify the overall dimensions for the stock in the z-direction. This value applies only for a billet stock.
e. In the Diameter Total box, specify the diameter of the stock. This value applies only for a bar stock.
f. In the Length Total box, specify the length of the stock. This value applies only for a bar stock.
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• Any change in the overall dimensions affects the offset values and vice versa.
• Changes in the rotation offsets may affect the overall dimensions and linear offset values.
• The most recently-specified value (any of the overall dimensions, linear offsets and rotation offsets) determines the overall dimensions.
• You cannot specify a value lower than the dimensions of the reference model.
g. Click Current Offsets to specify the stock offsets of the stock around the reference model and along the positive and negative x-axis, y-axis, and z-axis. These values apply only for a billet stock. For a bar stock, click Current Offsets to specify the stock offsets applied to the diameter and along the positive and negative directions of the length.
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• The values of the current offsets cannot be lower than the minimum offsets.
• You cannot define the overall dimensions and current offsets in the envelope sub-shape of the stock.
h. Click Minimum Offsets to specify the minimum values of stock offsets of the stock around the reference model along the positive and negative x-axis, y-axis, and z-axis. These values apply only for a billet stock. For a bar stock, click Minimum Offsets to specify the minimum values of stock offsets applied to the diameter and along the positive and negative directions of the length.
i. SpecifyRotation Offsets to change the orientation of the stock with respect to the reference model.
▪ In the About X box, specify the angular stock offset of the stock around the x-axis of the reference model.
▪ In the About Y box, specify the angular stock offset of the stock around the y-axis of the reference model.
▪ In the About Z box, specify the angular stock offset of the stock around the z-axis of the reference model.
5. Click the Properties tab and type the name and the common name of the stock.
6. In the adjacent box, select the sub-shape.
◦ Custom—You can define the overall dimensions and offsets of the stock.
◦ Envelope—Creo NC automatically defines the minimum overall dimensions and current offsets. You can define the minimum offsets and angular offsets only. You can use Envelope to reset the current offsets to the minimum values.
7. If you are satisfied with the stock you created, click .
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• You can right-click in the graphics window for a shortcut menu to clear the currently active collector, and select the shape of the stock.
• You can use the handles in the graphics window to drag and change the dimensions and orientation of the stock.
• Stock instances from a predefined set of instances are not supported in the automatic stock creation dashboard.
• Double click a dimension in the graphics window to edit its value.
About Stock