Preparing chamfer toolpaths

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The Turning Chamfer toolpath is useful for breaking sharp corners

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on a part that may not have been chamfered in the design.

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For this video, open the file Turning Chamfer.f3d.

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In the setup, you can see that the part has already been faced, profile roughed, profile finished,

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and that the grooving toolpath has been finished.

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Zoom and pan on the part to see a few of the edges that can be chamfered.

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In this example, the two inside edges of the groove area can be chamfered.

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To add a chamfer toolpath, on the Toolbar, Manufacture workspace, Turning tab,

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Turning panel, expand the Turning drop-down and select Turning Chamfer.

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A dialog for Chamfer1 opens.

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At this point, Under Tool, next to Tool, you would click Select…

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and select the tool you want to make the chamfer from the tool library.

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In this case, a grooving tool already appears in the canvas

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because the last operation completed was a grooving operation,

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and this same tool will also work to create the chamfer.

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In the dialog, open the Geometry tab.

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In the canvas, select the edges that you want to chamfer.

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In this case, click the two inside edges.

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Note that the Chamfers selection tool changes to 2 Edges.

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In the canvas, a preview of the chamfered edges appears.

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For one side, the chamfer tool looks like it will create the chamfer correctly,

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but on the other side, it looks like it misses the mark.

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This is because the control point of the tool can only be on one edge of the tool,

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and in this case, it is on the back edge.

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But, when you zoom in, you can see that the preview shows the highlighted area

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that will be cut through the model based on the control point of the tool.

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Zoom back out.

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In the dialog, open the Passes tab.

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Under Passes, in the Chamfer Width field, type “.015” to create a deburring edge break.

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Leave the Chamfer Extension field set to forty-thousandths of an inch (0.04 in),

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and the Chamfer Angle set to 45 degrees.

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Click OK.

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Simulate the toolpath again to check your changes.

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In the Browser, under Models, expand all the models.

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Turn off the visibility for the part that you are machining,

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which in this case is Steering Quick Release v1:1.

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Then, click Setup1, and, from the toolbar, in the Actions panel, click Simulate.

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The Simulate dialog opens.

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In the Browser, click Chamfer1.

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In the Simulate dialog, in the Display tab, under Toolpath, expand the Mode drop-down and select Tail.

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Then, enable the Stock checkbox.

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On the Simulation Player, click Play.

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As the simulation animates the chamfer operation,

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zoom in to see that the two chamfered edges are now added to the part where you specified the edge break.