Practice exercise

00:01

This is a practice exercise video solution.

00:07

For this practice, we're going to use type 2 rim setup.

00:11

Before we get started, we're going to navigate to the Design workspace.

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We're gonna take a look at Rim Front Type2.

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And we're going to begin by dragging the timeline marker just before the split body.

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We want to create an offset surface by going to the Surface Tools, Offset and grabbing the bottom here.

00:30

We want to offset this at least far enough so that a 1/4” ball endmill can get down and cut the sides of some of the openings.

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So this means that I want to go down at least an 1/8”.

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So I'm going to go down 0.2in for inch and say OK.

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We're going to make sure that we drag the timeline marker back to the end.

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And I want to go into my Bodies folder and I'm going to rename this Offset Body.

00:56

That way, I can easily understand what it is when I begin working with it.

01:00

I also want to make sure that I create a new sketch on the top face of the rim and I'm going to use P on the keyboard to project edges.

01:10

I need to create a bounding area for a pencil mill.

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So I want to make sure that I select these edges and you might need to move the cursor around a bit.

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And once we've projected all those edges, we can use our line tool to connect the openings.

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Once we have our closed boundary, we can navigate our way back to the Manufacture workspace, expand the Named Views and double click on Setup1.

01:34

Now we're going to go into 3D and create a 3D scallop operation.

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We're going to go into our VMC1 Library and select a 1/4” ball endmill with aluminum finishing.

01:48

For our containment region for our geometry, we want to select the upper edge of the fillet that's opening this pocket.

01:55

Then for Avoid Touch Surfaces, we want to expand our model, expand our component ant select the offset body.

02:03

We'll leave all the other settings as they come in by default,

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with contact only selected, machine areas using boundaries and there's a 0.025 boundary overlap.

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We’ll say OK and allow it to create that scallop operation.

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Next, we're going to go into 3D and create a 3D pencil operation.

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And this is going to be using an 1/8” ball endmill from our VMC1 Library.

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Once again, we'll do aluminum finishing.

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And in this case, we need to make sure we understand that the 1/8” ball end is actually not the same size as this fillet.

02:37

If you measure this fillet, it's a metric value.

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So we need to be aware of that difference when we're creating this pencil operation.

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What we want to do here is we want to use our sketch as the containment boundary.

02:48

This is going to mean that we're just looking in this area and not the entire model.

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Then for our passes, we want to make sure that we understand the over thickness, in this case 0.016,

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is the difference between the radius of the fillet and the radius of the tool that we're using.

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I'm going to limit the number of stepovers and I'm going to set this at 4, allowing it to machine four passes on this fillet.

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The last adjustment that I want to make is going to be in the keep tool down area.

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So this maximum stay down distance, I want to make sure that the tool stays down at least in the 2.625” range,

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which means that it will have less rapid movements away from the part.

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So once again, it's looking in this area and it's working its way around.

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Now let's take a look at the scallop and the pencil operations with Simulate.

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We can play through these using fast forward to see how it approaches cutting this geometry.

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Once we get closer to the pencil operation, I'm going to slow it down so we can see the pencil going back and forth.

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You can see that it's making the number of passes that we specified, cleaning up that fillet area.

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Once we're all done and we're happy with the results, let's make sure that we go back to our Setup1 Named View and that we save the file.