Any referenced datasets can be downloaded from "Module downloads" in the module overview.
Transcript
00:02
In this video, we'll use a 2D contour tool path.
00:06
After completing this step, you'll be able to create a 2D contour tool path.
00:12
In fusion 360, we want to carry on with our coupler for CNC mill.
00:17
We want to take a look at the geometry that still needs to be machined after our adaptive clearing tool path.
00:23
We know that the outside bore of this has already been machine, but we need to take care of this taper, this flat face, the internal radio fillets,
00:31
the taper this outside face and the top and the boar.
00:35
So when we're talking about this geometry,
00:38
we need to understand our requirements for the part and we need to understand what things can change for ease of manufacture.
00:46
Now, oftentimes if you're the designer and you're programming the part, you can make those changes on the fly.
00:53
But sometimes if you need a change in the part to make it easier to manufacture,
00:58
it goes through an entire engineering change order process.
01:01
For this part, there are a few things that would be easier for us to manufacture if they were different.
01:07
For example, if we zoom in and we take a look at this, fill it.
01:10
The Philip radius is going to be important based on various parameters in the tools that we're using.
01:17
So what I want to do is navigate back to the design workspace and I'm going to find these fillets notice what I do.
01:25
If I expand this, it's not actually giving me a fill it radius, it's giving me the generic coupler when it was converted to a body.
01:33
If we expand some of these other groups, I don't really have any Philip values in here.
01:39
It's not allowing me to really find that information.
01:43
So we're going to have to treat this as if it is a part that's been imported and we don't have that history.
01:50
If I try to activate the coupler again, you'll notice that, that information just simply isn't available.
01:56
But what we can do is we can use tools like press poll to modify the value of these fillets, notice that the radius value is .039.
02:06
Really, what would help us manufacture this part if it was .6-5.
02:12
So this match is a tool that we can use generally when we're using something like a ball end or bull nose mill to finish a fill it.
02:21
You want to use a radius value of the tool that's slightly smaller than the radius value of the Philip itself.
02:28
However, for this example, I'm going to make the radius value exactly match an 8" ball in mill,
02:34
because that will simplify some of the values that we're using when we're setting up the tool paths to help us understand what they mean.
02:42
From here, let's make a quick save of the design and let's navigate back to the manufacturer workspace.
02:48
You'll notice that there are a lot of red cautions and what we need to do is we need to regenerate all of our tool paths under actions,
02:56
I'm going to select, generate, regenerate everything in op one and then we'll go to opt to and I'll regenerate everything here as well.
03:05
Op two only has the single operation and the Phillips didn't affect up one at all.
03:11
But because something changed in the model, it needs to check all those surfaces.
03:16
So now that we've updated the model and we have a larger Philip that's going to be easier for us to work with.
03:21
Let's talk about order of operations at this point we've done an adaptive clearing,
03:27
we know that the outside bore of these parts are finished from the other side,
03:30
but we need to take care of this champ er and this bottom face and work our way in.
03:35
What I'm going to do is use a 2D contour tool path but I could also use a 2D pocket.
03:41
Either of these options of work just fine.
03:43
It's just simply going to depend on what your geometry is in my case, a 2D contour.
03:50
Using a half inch flat end mill that we already have inside of our tool library is going to be a great way for me to finish this part,
03:58
using my aluminum finishing data set.
04:01
Next I'm going to go to geometry and I'm going to select the bottom or the root edge of that, fill it under the heights,
04:07
it's going to be based off my selected contour and in the passes I need to make sure that I'm not leaving any stock and I can say okay.
04:16
So now that half inch flat end mill is going to come in clean out that face in a single pass,
04:21
because it's wider than the face and then it's going to be onto other geometry.
04:27
The next thing that I'm gonna do is I'm going to use a 2D contour again,
04:32
that same tool, but this time I'm going to finish off the outside bore and then I'm also going to finish off the top face.
04:40
When I do that on the top face, I'm going to go to the inside which will likely cause an error because the tool is too large.
04:47
Because of that error I can always go back and edit, go to my geometry and I can delete that upper contour and simply let it finish the outside edge.
04:56
Then I need to face the top of this part.
04:59
I can do that with a facing tool path but I can do that using a facing tool path while still keeping my half inch and milk.
05:07
I do want to create a stock offset and I'm going to add point to the outside of the stock.
05:13
And I'm going to say okay, allowing that tool to come back and forth, cleaning up that entire top.
05:18
I did this from bottom to top of the model. But really it could have been done from top to bottom.
05:24
It's just simply the order of operations where I started at the lowest point and worked my way up.
05:30
Now that we finished those off with 2D contours, we can start to think about the rest of the geometry.
05:36
Because I know I'm going to have to use some rounded tools, either a ball nose or a bull nose mill.
05:42
I'm going to go ahead and finish off these upper bores while I'm here and I'm going to do that with a 2D contour as well.
05:49
Again, it's going to be dependent upon what your requirements are,
05:53
but we're going to do this with an eighth inch flat end mill using aluminum finishing.
05:58
And I'm going to come in and bore this geometry out.
06:01
So I'm going to use the geometry selection is that bottom edge.
06:06
I'm not going to leave any stock and I'm going to use the ramp method.
06:10
I'm going to just see what that gives me in terms of my geometry noting that it leaves a small amount of material on the inside.
06:18
Another option that we have to clear out that geometry is we could treat it like a closed pocket.
06:23
We could use a 2D pocket tool path selecting this inside edge, treating it as a closed pocket and we could allow it to both rough and finish.
06:33
We're not going to leave any stock, but we do want to use multiple depths,
06:38
using multiple depths allows us to minimize the amount of burial that the tool is going to have because it's not an adaptive motion.
06:45
However, because we are dealing with a circular bore, it's going to be a consistent load for the majority of the cut.
06:51
So I'm going to change the maximum roughing stepped down to be .6 which is slightly less than half of the diameter of the tool.
06:59
I also want to make sure that I do have a finishing pass and I'm going to say okay.
07:05
When I do that I can go back and I can get rid of my 2D contour,
07:10
because now the pocket tool path is going in and removing that material and cleaning it up for me.
07:16
Lastly I need to finish off this inside bore.
07:19
Once again I could treat it like a pocket or I could come in with a 2D contour along that bottom edge,
07:25
making sure that I'm not leaving any stock and making sure that I am ramping in and I'm going to allow it to go in and remove that material.
07:34
One final thing I should do is I need to make sure that that 2D contour is going a little bit past the bottom.
07:41
So I'm going to enter a negative value of -102.
07:46
That allows it to go just past that bottom edge which has already been finished on the other side.
07:52
Now we've finished off all of the flat or vertical faces on the part and all we're left with is the tapers and the fillets.
08:01
So this is a great place for us to save before moving on to the next step.
00:02
In this video, we'll use a 2D contour tool path.
00:06
After completing this step, you'll be able to create a 2D contour tool path.
00:12
In fusion 360, we want to carry on with our coupler for CNC mill.
00:17
We want to take a look at the geometry that still needs to be machined after our adaptive clearing tool path.
00:23
We know that the outside bore of this has already been machine, but we need to take care of this taper, this flat face, the internal radio fillets,
00:31
the taper this outside face and the top and the boar.
00:35
So when we're talking about this geometry,
00:38
we need to understand our requirements for the part and we need to understand what things can change for ease of manufacture.
00:46
Now, oftentimes if you're the designer and you're programming the part, you can make those changes on the fly.
00:53
But sometimes if you need a change in the part to make it easier to manufacture,
00:58
it goes through an entire engineering change order process.
01:01
For this part, there are a few things that would be easier for us to manufacture if they were different.
01:07
For example, if we zoom in and we take a look at this, fill it.
01:10
The Philip radius is going to be important based on various parameters in the tools that we're using.
01:17
So what I want to do is navigate back to the design workspace and I'm going to find these fillets notice what I do.
01:25
If I expand this, it's not actually giving me a fill it radius, it's giving me the generic coupler when it was converted to a body.
01:33
If we expand some of these other groups, I don't really have any Philip values in here.
01:39
It's not allowing me to really find that information.
01:43
So we're going to have to treat this as if it is a part that's been imported and we don't have that history.
01:50
If I try to activate the coupler again, you'll notice that, that information just simply isn't available.
01:56
But what we can do is we can use tools like press poll to modify the value of these fillets, notice that the radius value is .039.
02:06
Really, what would help us manufacture this part if it was .6-5.
02:12
So this match is a tool that we can use generally when we're using something like a ball end or bull nose mill to finish a fill it.
02:21
You want to use a radius value of the tool that's slightly smaller than the radius value of the Philip itself.
02:28
However, for this example, I'm going to make the radius value exactly match an 8" ball in mill,
02:34
because that will simplify some of the values that we're using when we're setting up the tool paths to help us understand what they mean.
02:42
From here, let's make a quick save of the design and let's navigate back to the manufacturer workspace.
02:48
You'll notice that there are a lot of red cautions and what we need to do is we need to regenerate all of our tool paths under actions,
02:56
I'm going to select, generate, regenerate everything in op one and then we'll go to opt to and I'll regenerate everything here as well.
03:05
Op two only has the single operation and the Phillips didn't affect up one at all.
03:11
But because something changed in the model, it needs to check all those surfaces.
03:16
So now that we've updated the model and we have a larger Philip that's going to be easier for us to work with.
03:21
Let's talk about order of operations at this point we've done an adaptive clearing,
03:27
we know that the outside bore of these parts are finished from the other side,
03:30
but we need to take care of this champ er and this bottom face and work our way in.
03:35
What I'm going to do is use a 2D contour tool path but I could also use a 2D pocket.
03:41
Either of these options of work just fine.
03:43
It's just simply going to depend on what your geometry is in my case, a 2D contour.
03:50
Using a half inch flat end mill that we already have inside of our tool library is going to be a great way for me to finish this part,
03:58
using my aluminum finishing data set.
04:01
Next I'm going to go to geometry and I'm going to select the bottom or the root edge of that, fill it under the heights,
04:07
it's going to be based off my selected contour and in the passes I need to make sure that I'm not leaving any stock and I can say okay.
04:16
So now that half inch flat end mill is going to come in clean out that face in a single pass,
04:21
because it's wider than the face and then it's going to be onto other geometry.
04:27
The next thing that I'm gonna do is I'm going to use a 2D contour again,
04:32
that same tool, but this time I'm going to finish off the outside bore and then I'm also going to finish off the top face.
04:40
When I do that on the top face, I'm going to go to the inside which will likely cause an error because the tool is too large.
04:47
Because of that error I can always go back and edit, go to my geometry and I can delete that upper contour and simply let it finish the outside edge.
04:56
Then I need to face the top of this part.
04:59
I can do that with a facing tool path but I can do that using a facing tool path while still keeping my half inch and milk.
05:07
I do want to create a stock offset and I'm going to add point to the outside of the stock.
05:13
And I'm going to say okay, allowing that tool to come back and forth, cleaning up that entire top.
05:18
I did this from bottom to top of the model. But really it could have been done from top to bottom.
05:24
It's just simply the order of operations where I started at the lowest point and worked my way up.
05:30
Now that we finished those off with 2D contours, we can start to think about the rest of the geometry.
05:36
Because I know I'm going to have to use some rounded tools, either a ball nose or a bull nose mill.
05:42
I'm going to go ahead and finish off these upper bores while I'm here and I'm going to do that with a 2D contour as well.
05:49
Again, it's going to be dependent upon what your requirements are,
05:53
but we're going to do this with an eighth inch flat end mill using aluminum finishing.
05:58
And I'm going to come in and bore this geometry out.
06:01
So I'm going to use the geometry selection is that bottom edge.
06:06
I'm not going to leave any stock and I'm going to use the ramp method.
06:10
I'm going to just see what that gives me in terms of my geometry noting that it leaves a small amount of material on the inside.
06:18
Another option that we have to clear out that geometry is we could treat it like a closed pocket.
06:23
We could use a 2D pocket tool path selecting this inside edge, treating it as a closed pocket and we could allow it to both rough and finish.
06:33
We're not going to leave any stock, but we do want to use multiple depths,
06:38
using multiple depths allows us to minimize the amount of burial that the tool is going to have because it's not an adaptive motion.
06:45
However, because we are dealing with a circular bore, it's going to be a consistent load for the majority of the cut.
06:51
So I'm going to change the maximum roughing stepped down to be .6 which is slightly less than half of the diameter of the tool.
06:59
I also want to make sure that I do have a finishing pass and I'm going to say okay.
07:05
When I do that I can go back and I can get rid of my 2D contour,
07:10
because now the pocket tool path is going in and removing that material and cleaning it up for me.
07:16
Lastly I need to finish off this inside bore.
07:19
Once again I could treat it like a pocket or I could come in with a 2D contour along that bottom edge,
07:25
making sure that I'm not leaving any stock and making sure that I am ramping in and I'm going to allow it to go in and remove that material.
07:34
One final thing I should do is I need to make sure that that 2D contour is going a little bit past the bottom.
07:41
So I'm going to enter a negative value of -102.
07:46
That allows it to go just past that bottom edge which has already been finished on the other side.
07:52
Now we've finished off all of the flat or vertical faces on the part and all we're left with is the tapers and the fillets.
08:01
So this is a great place for us to save before moving on to the next step.
Step-by-steps
