Defining stock

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There are a few ways to define a stock in Fusion 360.

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Before you can define the stock, you must first make sure a setup has been created for it.

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For this video, open the file Stock Selection.f3d.

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Before you can define the stock, you must first make sure a setup has been created for it.

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On the Toolbar, Manufacture workspace, Turning tab, Setup panel, click Setup.

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The Setup operation dialog opens to SETUP1.

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Ensure that the work coordinate system has been set up,

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and enable the checkboxes next to Flip Z Axis and Flip X Axis.

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Under Model, next to Model, click the selection tool.

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In the canvas, click the model that you want to machine.

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The selection tool changes to specify a Body.

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Now, open the Stock tab.

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For lathe parts, in the Mode drop-down,

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there are two different types of starting shapes you can work with.

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You can start with cylinders or tubes, and they can be fixed size or relative size.

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Fixed size means that you specify the dimensions of those particular objects,

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and relative size means that they are going to be relative to the size of the object

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that you are trying to put the CAM toolpaths on.

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In this case, expand the Mode drop-down, and select Fixed size cylinder.

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In the Stock Diameter field, type “2.75”.

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In Length, type “3.5”.

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Expand the Model Position drop-down and select Offset from front, and, in the Offset field,

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type “0.05” to leave just enough material on the front of the part to build a face off.

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In the canvas, zoom and pan to see that you have a little bit of material on the front,

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and that the stock is larger than the part that you are machining.

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There is a third option for defining stock as well.

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In this case, the part might be made from something like a casting

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so that you do not have to remove so much material.

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Back in the dialog, under Stock, in the Mode drop-down, select From solid.

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Note that the Stock Solid selection tool is highlighted,

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indicating you must select a solid body from the Browser or canvas.

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In this case, you want to select a stock model.

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In the Browser, expand the Models tab, then expand CAM Root:1.

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Find the Steering Quick Release part, and expand that folder.

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Expand Bodies, and you can see that there are two bodies.

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One is the part that you are trying to machine, and the other is the casting of the stock.

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Click Casting.

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In the Setup operation dialog, click OK.

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Zoom and pan in the canvas to see that the stock starting position

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is now a casting that you can work from, instead of starting with a tube or cylinder.