Practice exercise

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This

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is a practice exercise video solution.

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To get started in Fusion,

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we want to open the supply dataset,

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milar.F3D.

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We want to expand our analysis folder and

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ensure that the analysis folder is currently visible.

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This part was designed for manufacture on a vertical milling center or a CNC mill.

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We're going to assume that we only have access to 3 access machines,

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which means that we can be moving in the X,

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Y,

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and Z directions.

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And we want to use the inspect

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tools for accessibility analysis and minimum radius analysis

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to help us plan out the number of orientations that we need to machine it in,

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as well as the tools that are needed.

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We're going to get started first with accessibility analysis.

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We need to pick our part,

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and then we need to pick the vertical direction.

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Think about this as the part sitting on a machine,

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whether it's in a fixture or a vice,

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and the direction that we're going to be pointing up to the spindle.

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Now,

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in this case,

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the part was designed in the Y up orientation,

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so I'll be using the Y axis as my vertical direction.

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Remember that when you set this up in the manufacturer workspace,

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you will be defining your own work coordinate system.

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That means the X,

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Y and Z orientation here in the design workspace doesn't really have

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an effect on how it's set up in the manufacture workspace.

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We're gonna select OK,

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and then rotate our part around.

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We can see the bottom of this design has a pocket,

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and this is letting us know that we're going to need a second orientation on the mill.

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We can't machine this backside with the part in a single orientation.

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In some instances,

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you may find that you can machine a part from one direction,

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assuming the bottom portion of it has been faced appropriately.

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But in this case,

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we know that we now need at least 2.

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The next thing that we want to take a look at

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is ensuring that we understand the minimum radius on our part.

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Once again,

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we're going to select our part and notice that we get a preview on the screen.

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It's telling us the optimum minimum radius is a very small number.

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We can see it's 1.7 E to -6.

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We can manipulate these values for the minimum radius,

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and we can take a look at what a minimum radius tool would be.

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For example,

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if we wanted to use at least a half inch tool,

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we could set this at 0.25,

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and this would allow us to identify whether or

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not that tool can machine all the geometry.

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Another important note is we have threads on this part.

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The threads are going to be treated slightly different.

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You can see that there is a small section in the bottom of this,

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and we would want to make sure we identify this as probably a small radius value.

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In this case,

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I'm gonna set the minimum radius down to 0.

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And I want to identify any red areas of concern.

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We can see here that everything appears to be green,

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which tells us that it falls within this optimum minimum radius value.

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However,

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as we begin planning out our tools,

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if we know that we want to minimize the small tools

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to be above a quarter inch,

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we can set the minimum radius value at 0.125

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and rotate the model around and figure out where that position is.

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So,

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we can instantly see here that the bottom of

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our holes are going to be the problem areas.

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But this is OK because the bottom of the hole is created with a drill point.

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We could always go back and make some modifications to the whole feature that was

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used here or double check that we're OK with the rest of the model.

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If you need to use this tool to find that minimum radius value,

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it may be a good idea to temporarily suppress that feature.

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For example,

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we can find our whole feature,

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right click and say suppress feature.

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Then we can go back into our minimum radius analysis and select edit.

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We can now see here that the optimum minimum radius is 0.125.

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Keeping in mind that using the exact size,

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in this case a quarter inch tool,

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is likely going to create some chatter

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marks or some imperfections in those corners.

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So we would need to use a smaller tool than a

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quarter inch diameter for our finishing tool on this model.

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If we want to identify certain areas of a design,

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it becomes a little bit more tricky,

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but you can use the minimum and maximum radius

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tool values to help identify areas of concern.

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Right now,

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it looks as though these internal corners are likely going to be the smallest areas.

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If we set our maximum tool radius at 0.25,

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which is going to be a half inch,

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this will allow us to focus our attention on just a small subset

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of tools to ensure that we have everything needed to finish our part.

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Once we're done with the analysis,

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we can go back and unsuppress the whole feature as well as the whole pattern.

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You can toggle these on and off at any point in time inside of our analysis folder,

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and by right clicking and selecting edit,

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you can always go back and make adjustments.

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For example,

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the accessibility analysis,

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we can pick a different direction,

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and for the minimum radius analysis,

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we can manipulate those values to find certain

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areas where we may need a special tool.

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At this point,

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make sure that you do save this before moving on.