Practice exercise

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This is a practice exercise. Video solution

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For this practice exercise. Let's begin with the supply dataset baffled.f three d.

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Infusion 3 60.

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Often times you'll need to create geometry that you want to avoid during machining.

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With 2.5 access tool paths.

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We typically will use a face or a contour chain selection to create our tool paths.

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However, when your machining in three D,

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you often times will need to create geometry to

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prevent tools from dropping into holes or pockets.

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There are many different ways you can do this and there are many

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different reasons why you might need to create surfaces or use direct modeling.

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So let's explore creating some patch surfaces.

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And let's also talk about using direct modeling

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to produce the same results.

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So first we're going to navigate to our surface tools

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and take a look at the surface patch tool.

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When we select an edge, in this case, a closed edge loop automatically,

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we're going to create what's called a patch surface.

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In this instance, everything is flat.

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So we don't need to worry about connected tangent C.

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In this case we could turn on group edges and allow tangent C to be created

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ensuring that this is a perfectly flat surface.

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But again, because everything surrounding this geometry is flat,

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it's not really needed.

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In this case

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we're going to say, okay, and now if we take a look at our bodies folder,

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we have a patch surface

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that can fill in the area for the top of that whole.

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Once again,

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the reasons why you might need to do this vary depending

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on what your end goal is for manufacturing these parts.

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So let's go ahead and hide this and let's take a look at patch surface. One more time.

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In this instance, I'm going to select the entire outside edge.

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This allows me to create a patch surface that goes over the entire top of the part.

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This can be used to fill in geometry or

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again to prevent tools from going into certain areas.

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Once again,

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to access tool paths are going to be based on edges and chain

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selections while three access tool paths will be used based on geometry.

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So in most cases the surfaces that you create

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would be used in three access tool paths.

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Now, if we're working in Fusion 3 60

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let's say that we want a version of

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this part that doesn't have these pocket features.

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We can always select the body inside of the Bodies folder,

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right click to create a copy of it,

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then we can right click in the bodies folder and paste

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and this will create an exact copy in the same location.

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If we hide the original, I'm gonna rename body for

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this is gonna be my body copy

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Next. I want to use some of my direct modeling tools to remove these features.

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We can select these faces and we can use tools such as press pull

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we can begin to pull this up and then simply select

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a vertex on the edge of our part and say,

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Okay,

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notice that fusion 360 automatically removes that pocket as

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well as any edges that were created from it.

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We can also select all of these inside faces holding down the shift key

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and then we can use our modify delete tool.

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This is going to produce the same results

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last.

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We can select this inside face, go to modify and we can use the offset face command.

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Now, it's important to note that tools like press pull actually invoke offset face.

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So it's going to be the exact same thing as if we were using press pull.

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So now we have what we consider a D featured version of this part.

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The copy no longer has those pockets,

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but the original still maintains its geometry.

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So if you're trying to machine apart and you want to avoid certain features,

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you can always use direct modeling tools or sometimes the

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surfacing tools to create simplified versions of your parts.

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This might be a first or pre production run

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or it could simply mean D featuring the part.

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For whatever reason,

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after you're done, make sure that you do save the design before moving on