Practice exercise

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This is a practice exercise video solution

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for this practice.

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We'll begin by taking a look at the supply drawing, Caliper bracket drawing dot PDF.

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We want to note that we're gonna be modeling this Caliper bracket

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and there are a few areas that we should pay attention to.

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First, we need to take a look at the material being used in this case, aluminum 60 61.

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And we also need to identify various dimensions and geometry on the print.

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Notice that the overall height of this is 0.3 and then the smaller section is 0.19.

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Also note that the distance between holes is three

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inches and 2.5 for the different mounting points.

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And we can see that there are diameters as well as tapped holes.

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We also want to note that there are some text notes that tell us

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that the outside edges of the part have tang agency with each hole location.

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We also have the part is symmetric about a a or the section view line.

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So take a moment to review the detailed drawing and

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then we can begin in fusion 3 60 modeling,

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the part

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in Fusion 360.

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The first thing that we want to do is identify the document

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units and ensure that they match the print that we're modeling.

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In this case, we want to make sure to set these to inch.

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Next. We're gonna begin by creating a new sketch.

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All the details of this caliper bracket can be done in one single sketch.

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I'm gonna select the top view

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and then I'm gonna begin by locating a vertical line.

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We're gonna hit escape to get off our line tool.

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We're going to select the line and control, select the center point or origin

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and select our mid

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point constraint.

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Next,

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we're going to use our dimension tool and the dimension tool allow us

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to put a vertical dimension between the end points of our line.

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In

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this case, we're going to use three inches,

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we'll hit escape and then we'll select this

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line and make sure that it's construction.

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When we take a look at our detailed drawing,

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this three inch dimension will be the distance between the two larger holes

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because we know that everything is symmetric.

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And when we look at the detailed drawing,

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we can identify the fact that a lot

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of the other dimensions are referencing these points.

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So we're gonna begin by using our circle tool

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and we'll place the circle at the top

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and then we're gonna place the circle down to the left a little bit.

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Each of these will have a smaller circle in the center.

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So we can go ahead and place those as well.

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Next, we're gonna use our line tool.

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And because we know that everything is symmetric,

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we could simply just draw the objects on the top and then mirror

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them to the bottom or we can draw them on both sides.

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It depends on how you prefer to model. But for me, I'm gonna draw a horizontal line

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hit escape and this line is going to once again be construction.

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I'm gonna use that to mirror geometry across that line.

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So I'm gonna select all four of these holes,

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select my mirror line

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and then say, OK,

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before I go any further, I want to place a few dimensions

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first, the smaller hole on this boss is going to be 0.38.

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The larger hole here is going to be a diameter of 0.63

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for this hole here. This is going to end up being tapped three eights by 16.

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And we don't have a dimension for that

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for a tapped hole because we're gonna be using the thread tool.

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We simply need to make sure that we're in the right ballpark for right now.

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I know that a tapped hole for three eights is 0.3125.

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But if you're unsure, you can always reference a tap chart.

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Next, we need to have the outer dimension. And in this case, it's gonna also be 0.63

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we could simply select the other dimension.

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For example, this one here and we could link them together

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or we can manually enter that value.

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The benefit of linking dimensions together means that if I

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decide to change this one to a larger value,

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both of them would update.

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Next. We need to position this hole.

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Now, if we select the two center points and we drag our dimension cursor vertically,

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we can get a horizontal dimension.

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We'll left click and then manually enter a value of 0.75.

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Next, we'll make the same selection. But this time we'll drag it out into the right.

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The vertical distance between these two is 0.25.

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This now gives us a complete fully dimensioned

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sketch for the geometry we've already created.

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Next, I'm gonna go to my circle tool.

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I'm gonna find the origin and drag it off to the right and then make a circle,

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use my dimension tool D on the keyboard

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and then we can place a dimension on this of two inches.

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When we look at the detailed drawing, it gives a radius value of one,

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meaning our diameter value is going to be double that amount.

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We need to make sure that we use a horizontal vertical

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constraint between our origin and the center of the circle.

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Next,

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we need to use our dimension tool to dimension the horizontal

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distance between our larger hole and this new two inch circle.

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This is going to be a distance of 0.31

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would enter and now it's fully defined.

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The rest of this detailed drawing consists of straight lines.

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So we're going to use our line tool

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and we're gonna start by drawing a line between the outside of these two bosses

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between the outside of these two bosses.

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And then we want to make sure that we

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draw a vertical line between the outsides of these

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and a tangent line between these.

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Don't worry too much about how the lines look for right now.

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And if you do any extra lines simply hit escape to get off your line tool,

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select the extra lines and hit delete.

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What we want to do is make sure that all

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the end points of our line are attached to other geometry

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and that they all have tang agency.

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For example, we can add the tangent constraint between here and here

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as well as these,

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the outside section here and this one here,

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this now gives us a fully dimensioned sketch.

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We can escape to get off our constraint tool.

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We can see that we have a profile here that's selectable.

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Even though we have this large circle, we're only using a portion of it.

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You can choose whether or not you want to use tools like modify and trim

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or modify and break to break up this section.

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But in fusion 3 60 all that matters is that we have our closed profile.

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So from here, I'm gonna finish my sketch and begin creating our geometry.

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Now, the overall height of our part is 0.3 based on the print,

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but that's only going to be a portion of these bosses.

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So we'll begin by using extrude.

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And I'm going to select all of the various regions,

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with the exception of the inside of the hole and the large circle.

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Then we're gonna extrude up a distance of 0.19 inches.

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Next, we need to go into our sketches folder,

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show our sketch and hit extrude one more time.

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This time,

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we want to take these additional profiles and we

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want to bring them up a distance of 0.3.

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We need to ensure that we change the operation to join and then say, OK,

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now we can hide our sketch and take a look at our design.

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The last thing that we need to do is make sure that

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these holes are tapped holes so that they are the correct size.

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We can do this by going to create and using our thread tool

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by selecting the holes fusion 3 60 will automatically look for an appropriate size.

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If you need to make multiple selections,

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you might need to press the control or command keys,

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then simply select the size in this case 0.375.

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And it's going to be using a 38 by 16 designation,

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we'll say, OK. And then we can use inspect to measure the diameter of the holes.

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You can see here the diameter is 0.313 which if we

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take the precision out a bit further will be 0.3126.

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We'll close this and make sure that we do

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inspect and review our design.

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We also want to make sure that we add our physical material.

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So at the very top, we're going to right click and select physical material

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from the list. You want to go down to metal and find an aluminum 60 61.

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We can drag and drop this onto the body inside of our canvas or at the

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very top level of our browser which will

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apply to any bodies created within this component.

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Then we can close our physical material browser.

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The last thing we need to do is make sure that we do save our design.

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So we'll select save, make sure that you do have it saved in the correct location.

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Then we want to make sure that we give it a file name,

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the print that we're looking at is calling this the caliper bracket.

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So let's go ahead and name this caliper bracket and select save

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from here. Let's make sure that everything is saved before moving on.