Practice exercise

00:01

This is a practice exercise video solution.

00:06

For this practice exercise, we'll get started with the supply dataset, trophy bass.

00:11

We're going to navigate to the manufacturer workspace and make sure that our units are set to inch.

00:18

We want to create a new setup and in this case we're going to change our stock so that it's a relative size cylinder.

00:24

We use the default settings and we'll say okay. We're going to begin by creating a 3D adaptive clearing tool path.

00:32

Going into our cam DFM library, we're going to use tool number six are half inch flat for aluminum ruffian.

00:39

In the past is section, we want to make sure that we have a specific maximum roughing step down that works for this tool.

00:47

This is going to be based on the flute length that we have and how far we can take the tool down.

00:52

In our case, I'm going to go a maximum of three quarters of an inch.

00:55

This will give me a fine step down of .075.

00:59

We're going to leave a small amount of stock and we'll say, okay.

01:05

Once we removed, the majority of the material with this tool path, let's go ahead and add a second.

01:12

Let's go to our 2D tools and select 2D contour.

01:15

Using the same tool around the bottom edge of the part.

01:18

We want to make sure that we're not leaving any stock. We're going to do a final finishing tool path.

01:23

We want to validate both of these operations as the tool we're using is relatively close to the holder itself,

01:30

so we're going to use simulate and notice that we have some collisions.

01:34

The tool holder itself is colliding with the stock because the tool is not projecting far enough out.

01:40

So this tells us that we need to make an adjustment to the tool.

01:43

Since it's used in both operations, we can expand either one and select edit tool inside of the Qatar section.

01:51

We have something called length below holder.

01:54

We're going to increase this to two and we're going to say okay.

01:60

Both of these tool paths now need to be regenerated using control or command key on the keyboard or going to actions and selecting, generate.

02:08

Let's go ahead and re simulate to make sure we don't have any collisions dragging the cursor along the bottom.

02:14

We can see that when the tool gets to its final depth we still have plenty of the shaft left,

02:21

and we're not worried about any more collisions with these tools.

02:25

Let's go ahead and close the simulation and let's add a few more tool paths.

02:31

Next we're going to go to the 3D. Drop down and we'll select 3D, flow.

02:36

We want to change our tool and in this case we're going to make sure that we go to our candy FM library and we look for a bull nose mill.

02:44

This bull nose mill has a very small radius on the corner so it might not be the greatest tool for this,

02:50

but let's give it a shot and see how it does also note that it's not sticking out of the holder very far and likely will cause some trouble.

02:57

But we want to make sure that we explore this option when we select the surface that we want a machine,

03:02

we also want to click on the red arrow to make sure that it's going the correct direction.

03:07

Then in our passes section, we're going to increase the number of stepovers to 20 and we'll say okay.

03:14

As the tool goes around, you can see that it is cutting our geometry.

03:18

Let's expand the tools settings and let's turn off the cutting, moves the leads and links.

03:23

So that way we have a good idea what this tool path is doing.

03:27

I'm going to edit flow and instead of using the bull nose mill that we have,

03:32

I'm going to go into my fusion 360 library and I want to take a look at just ball end mills.

03:38

I'm going to select a quarter inch ball and mill for aluminum finishing and regenerate this tool path.

03:46

This gives us a much better finish but we still need to make sure that we are completing everything we need to.

03:53

So in this instance I'm going to right click and delete flow and I'm going to take a look at another tool path called scallop.

04:01

I'm going to make sure that I'm using my quarter inch ball in mill.

04:06

And again aluminum finishing, this time instead of focusing on just a single surface.

04:12

I'm going to allow it to machine everything inside of this edge.

04:16

I'm going to let the tool center on the boundary with a small amount of additional offset equal to half of the tool.

04:24

We're going to allow it to machine everything and use rest machining from previous operations so it know what's been removed.

04:31

Then we're going to modify our step over value to be .02.

04:37

Will regenerate this and allow it to create the tool path so we can validate the tool motion.

04:43

Everything looks pretty good but we do need to simulate this to make sure that we don't have any collisions.

04:48

We want to make sure that as this tool is moving around, we don't get close to the holder. So let's view this from the side.

04:58

Let's make sure that the holder doesn't collide as we rotate this around. You can see that we do have a collision.

05:04

So we need to edit this tool as well will expand the scallop, right click on the ball in mill and edit tool.

05:12

In the cutter section, we want to make sure that the length below holder is long enough and I'm going to set this to an inch and a half.

05:19

It would also be a good idea to use a different holder. So we're gonna go to the holder section, we're going to look for cat 40 or C.T.40

05:29

And then we want to take a look at the tool holders that are able to hold a quarter inch tool.

05:33

That'll be the CT 40-150.

05:37

If we double click on one of these you can see that it changes the tool holder that we have, we're going to use the 2nd 12.36.

05:45

And then we can go back to our culture and we can modify the length below holder to be a bit shorter at 1 inch and accept

05:52

With a different holder, this gives us more clearance but we need to regenerate this tool path by again using control or command G on the keyboard.

06:04

Once it's been regenerated, let's go ahead and simulate this and validate that we don't have any collisions.

06:11

When I view this from the side, you can see that were relatively close but we don't have any collisions at this point.

06:17

Going to jump all the way to the end and make sure that we are removing all the material.

06:21

This might take a little bit of time for it to calculate,

06:25

but we can always go back and take a look at it in the in process stock to make sure that we have machined everything

06:32

At this point, let's make sure that we do save before moving on.