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Integrated BIM tools, including Revit, AutoCAD, and Civil 3D
& Manufacturing
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Professional CAD/CAM tools built on Inventor and AutoCAD
Integrated BIM tools, including Revit, AutoCAD, and Civil 3D
Professional CAD/CAM tools built on Inventor and AutoCAD
Transcript
00:02
In this lesson, we're going to learn about C-axis milling.
00:07
After completing this lesson, you'll be able to: Create a 2D adaptive toolpath with live tooling.
00:13
In Fusion 360, we want to carry on with our C-axis drilling example.
00:18
We've already drilled and tapped the 1/4-20 holes around the part and now we're going to take a look at these pockets.
00:24
Whenever we're dealing with C-axis operations, of course your machine has to support this capability.
00:31
It has to have live tooling and it has to have the tool changer be able to move specifically off axis of the axis of rotation.
00:40
So based on that, you might determine a specific strategy when you're approaching a C-axis operation.
00:47
In our case, I'm going to be focusing on one pocket with the same tool to both rough and finish.
00:53
And then I'm going to pattern that around the part.
00:56
So in order to do this, I'm going to have to move on to my milling toolpaths.
01:02
The milling toolpaths are going to be based on the coordinate system that we have setup in our turning operations.
01:08
But I'm going to go into 2D. And I'm going to use 2D adaptive clearing.
01:12
I'm going to select the 1/4” endmill that's inside of this document.
01:17
And then for my geometry, I'm going to select one of these pockets.
01:21
Because we're dealing with a 2D operation, it's automatically categorizing it as an open chain.
01:28
I'm going to make sure that my heights look okay.
01:31
It's going to the selected contour and then I'm going to leave a small amount of stock in the radial direction, but not in the axial direction.
01:40
I don't want to have to come in and use a pocket operation to finish the floor.
01:43
I'm only going to come back with a 2D contour to finish the wall.
01:47
From here, I'm going to say OK, allow it to come in and clear out that section.
01:52
And then I'm going to go to a 2D contour and I'm going to finish off that pocket.
01:58
I’m going to make sure in the Passes section that I'm not leaving any material so Stock to Leave is not turned on.
02:03
And then we want to talk about ways in which we can extend our selected contour.
02:08
So the Tangential Extension Distance, I'm going to set to 0.125 which is the radius of my tool and I'm going to say OK.
02:17
So this allows me to come in and clear out that pocket.
02:21
Now I'm going to select both of these inside of the browser.
02:24
I'm going to go to Setup and I'm going to create a new pattern.
02:28
The pattern type is going to be circular.
02:30
We're going to be going around the center of our part, that's the axis of rotation.
02:34
And then we need to determine the number of instances that we have.
02:37
In this case, it's going to be 6.
02:40
These are equal spacing.
02:41
But again, if we had sort of an odd number of instances, we could change that to make sure that it's not equal spacing.
02:49
The next thing that we want to make sure that we do is we keep the original toolpath, which is going to be this first pocket,
02:54
and we're going to order by tool, which in this instance it's the same tool.
02:58
It won't really matter.
02:59
We can order by operation or we can preserve the order.
03:03
So if we want to both rough and finish each pocket before removing because we are using the same tool, we would want to select preserve order.
03:12
On the post process if we had to override the WCS for some reason, we could do that but in this instance, it's not going to be applicable.
03:20
Now that we have this created, we want to go into Simulate which will allow us to see the 1/4-20 holes drilled and tapped
03:28
and then we can come in and we can see the adaptive clearing and then the 2D contour cleaning that out, moving to each other position.
03:38
We could also do this with another type of toolpath.
03:40
For example a 2D pocket, something that would let us both rough and finish it without retracting the tool.
03:46
But really it depends on your geometry.
03:49
This is a very specific example and the type of geometry is going to dictate which toolpath you use.
03:56
So again, it's important to understand that when we're doing turning, the functionality of the specific machine must be kept in mind.
04:05
In this instance, we're talking about C-axis drilling and milling, which means that we have live tooling.
04:10
The tool changer can move and it can position the tool and the spindle based on our selections.
04:18
Now, if you don't have this capability, what's going to happen is the post is just not going to work on your machine.
04:24
So make sure that you don't create toolpaths that are outside of the capability of your specific machine.
04:30
From here, it's always a good idea to save often.
04:32
So let's make sure that we save this before moving on.
Video transcript
00:02
In this lesson, we're going to learn about C-axis milling.
00:07
After completing this lesson, you'll be able to: Create a 2D adaptive toolpath with live tooling.
00:13
In Fusion 360, we want to carry on with our C-axis drilling example.
00:18
We've already drilled and tapped the 1/4-20 holes around the part and now we're going to take a look at these pockets.
00:24
Whenever we're dealing with C-axis operations, of course your machine has to support this capability.
00:31
It has to have live tooling and it has to have the tool changer be able to move specifically off axis of the axis of rotation.
00:40
So based on that, you might determine a specific strategy when you're approaching a C-axis operation.
00:47
In our case, I'm going to be focusing on one pocket with the same tool to both rough and finish.
00:53
And then I'm going to pattern that around the part.
00:56
So in order to do this, I'm going to have to move on to my milling toolpaths.
01:02
The milling toolpaths are going to be based on the coordinate system that we have setup in our turning operations.
01:08
But I'm going to go into 2D. And I'm going to use 2D adaptive clearing.
01:12
I'm going to select the 1/4” endmill that's inside of this document.
01:17
And then for my geometry, I'm going to select one of these pockets.
01:21
Because we're dealing with a 2D operation, it's automatically categorizing it as an open chain.
01:28
I'm going to make sure that my heights look okay.
01:31
It's going to the selected contour and then I'm going to leave a small amount of stock in the radial direction, but not in the axial direction.
01:40
I don't want to have to come in and use a pocket operation to finish the floor.
01:43
I'm only going to come back with a 2D contour to finish the wall.
01:47
From here, I'm going to say OK, allow it to come in and clear out that section.
01:52
And then I'm going to go to a 2D contour and I'm going to finish off that pocket.
01:58
I’m going to make sure in the Passes section that I'm not leaving any material so Stock to Leave is not turned on.
02:03
And then we want to talk about ways in which we can extend our selected contour.
02:08
So the Tangential Extension Distance, I'm going to set to 0.125 which is the radius of my tool and I'm going to say OK.
02:17
So this allows me to come in and clear out that pocket.
02:21
Now I'm going to select both of these inside of the browser.
02:24
I'm going to go to Setup and I'm going to create a new pattern.
02:28
The pattern type is going to be circular.
02:30
We're going to be going around the center of our part, that's the axis of rotation.
02:34
And then we need to determine the number of instances that we have.
02:37
In this case, it's going to be 6.
02:40
These are equal spacing.
02:41
But again, if we had sort of an odd number of instances, we could change that to make sure that it's not equal spacing.
02:49
The next thing that we want to make sure that we do is we keep the original toolpath, which is going to be this first pocket,
02:54
and we're going to order by tool, which in this instance it's the same tool.
02:58
It won't really matter.
02:59
We can order by operation or we can preserve the order.
03:03
So if we want to both rough and finish each pocket before removing because we are using the same tool, we would want to select preserve order.
03:12
On the post process if we had to override the WCS for some reason, we could do that but in this instance, it's not going to be applicable.
03:20
Now that we have this created, we want to go into Simulate which will allow us to see the 1/4-20 holes drilled and tapped
03:28
and then we can come in and we can see the adaptive clearing and then the 2D contour cleaning that out, moving to each other position.
03:38
We could also do this with another type of toolpath.
03:40
For example a 2D pocket, something that would let us both rough and finish it without retracting the tool.
03:46
But really it depends on your geometry.
03:49
This is a very specific example and the type of geometry is going to dictate which toolpath you use.
03:56
So again, it's important to understand that when we're doing turning, the functionality of the specific machine must be kept in mind.
04:05
In this instance, we're talking about C-axis drilling and milling, which means that we have live tooling.
04:10
The tool changer can move and it can position the tool and the spindle based on our selections.
04:18
Now, if you don't have this capability, what's going to happen is the post is just not going to work on your machine.
04:24
So make sure that you don't create toolpaths that are outside of the capability of your specific machine.
04:30
From here, it's always a good idea to save often.
04:32
So let's make sure that we save this before moving on.
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