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& 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 drilling.
00:06
After completing this lesson, you'll be able to: Create a drilling operation off the axis of revolution.
00:14
In Fusion 360, we want to get started with the dataset C-axis drilling.f3d.
00:18
We should be in the Manufacture workspace and we should be set to inch.
00:23
This already has a setup in stock.
00:25
So we're going to take a look at this for C-axis drilling.
00:29
We already have taken a look at drilling along the axis of rotation and that's how a majority of standard lathes will operate.
00:37
You can put a drill inside of a chuck and you can use the spindle turning to actually use a fixed drill bit to drill the hole in the center.
00:45
However, when we start moving off of the center, we're using C-axis operations and we need to incorporate live tooling.
00:54
Let's go ahead and check the tool library for this document and see what tools we have available.
00:59
We have a 1/2” drill, we have a 0.201 which is a drill size for a 1/4-20 tap.
01:06
We have a 1/4-20 tap and then we have a 1/4" flat endmill.
01:09
So we have all the tools that we need for this.
01:12
But we can always use inspect and just double check the size of the holes.
01:16
So that's a 201 and the center should be a 1/2” and then the 1/4" endmill will be used for the small pockets.
01:23
So what we want to do now that we already understand how to create a drilling operation on the axis of rotation,
01:30
we're going to use drilling operations but we're going to do it off the axis of rotation.
01:35
We're going to select our tool from our document which is going to be our 0.201.
01:39
Again, we're skipping pre drilling the holes and we're just using the correct drill bit sizes.
01:44
But in reality you would spot drill all these positions first.
01:48
Now that we have our tool selected, notice that the spindle rpm is going to be set here and that's going to be used in a live tooling situation.
01:58
So this is where you have some sort of tool holder setup that allows you to spin the tools.
02:04
So we're going to be spinning this drill using live tooling and the part itself will not be rotating.
02:10
We'll be using the spindle to position it and then we'll be using the live tooling to actually spin our drill bit.
02:18
Now that we have our geometry section, we want to select at least one of the holes.
02:24
What we can do here is we can select one hole and we can pattern it.
02:28
Or we can manually select each of the holes that we want to drill.
02:32
There are different reasons why you would choose one over the other.
02:35
If the drills are in a concentric pattern, we can use either option, it will be fine.
02:40
But in some instances you might not have a traditional pattern that you can do and you might want to select all the holes.
02:46
Of course, all the same options that we have in a milling setup, selecting the same diameter.
02:53
Auto merging hole segments and so on.
02:55
These all will allow us to make that same selection in the lathe situation.
03:02
Then we want to determine the heights now.
03:04
Because we selected the faces of each hole, the heights are already based on the hole top and bottom.
03:09
That's going to be fine for this.
03:11
I am going to use drill tip through bottom.
03:14
This is going to allow me to have a little bit of extra material removed from the bottom of the hole because we are going to be tapping them.
03:20
And then the drilling cycle, I'm going to be using a partial retract.
03:24
So this is going to be a peck cycle that allows me to pull the drill bit back out a little bit to help with chip clearance.
03:30
But ultimately what's actually happening is it's not fully retracting until the hole is completely drilled.
03:37
So we're going to say OK, allow it to generate that and then take a look at simulation.
03:42
So as we're simulating, we can see that the drill is pecking in each position and then it's moving over to the next.
03:49
This is a great situation because it's coming all the way back around.
03:53
And what we can actually do is we can take this toolpath and we can duplicate it and then we can modify the duplicate to be our tapping operation.
04:03
So I'm going to edit this starting with the tool.
04:07
Now we're going to select our 1/4-20 tap.
04:11
The holes are already going to be selected but we can reverse the order.
04:15
Which means that what we're doing is we're going to the last position we drilled and we're working our way back.
04:21
So that means that the spindle on our machine is going to index based on moving back and forth.
04:28
Now there are some situations where you would want to be aware of the method that we're doing here.
04:33
If you don't have great repeatability in the spindle that you're using, you might want to drill and tap each hole position before moving to the next.
04:43
Hopefully that's not an issue.
04:44
But there are certain instances where you might want to consider drilling and tapping each position and then patterning that entire thing.
04:51
Or redoing all of those operations.
04:54
Next the heights, because we used that drill tip through bottom on the previous operation,
04:59
I'm going to allow it to go all the way to the hole bottom knowing that we have a small amount of clearance.
05:04
Then for the cycle because we did duplicate it, we will have to manually select tapping,
05:09
because it won't automatically change based on our tool selection.
05:13
So that is one downside.
05:14
When we're duplicating a drilling operation, moving it to a tapping operation,
05:18
we need to double check that tapping cycle or else you will break a tap extremely fast.
05:25
So now that we have our tapping cycle in each position, let's select the entire setup and let's simulate.
05:30
So now, as we're going through we're drilling each position, moving in a clockwise manner.
05:36
Once we get to that last hole position and we switch to a tap, now we're moving backwards in a counter clockwise fashion.
05:43
Now again, we don't necessarily need to do that, but based on the pre-selected holes,
05:49
because we duplicated that operation, it was easy for us to just reverse it.
05:54
Otherwise it's going to move to this position and then work its way back around.
05:57
Either will be fine. It's not a huge amount of distance to go between the two.
06:01
But if you don't have to reposition the spindle, then it's best to just keep it in the same location between operations.
06:09
From here, let's always make sure that we do save often before moving on to the next step.
Video transcript
00:02
In this lesson, we're going to learn about C-axis drilling.
00:06
After completing this lesson, you'll be able to: Create a drilling operation off the axis of revolution.
00:14
In Fusion 360, we want to get started with the dataset C-axis drilling.f3d.
00:18
We should be in the Manufacture workspace and we should be set to inch.
00:23
This already has a setup in stock.
00:25
So we're going to take a look at this for C-axis drilling.
00:29
We already have taken a look at drilling along the axis of rotation and that's how a majority of standard lathes will operate.
00:37
You can put a drill inside of a chuck and you can use the spindle turning to actually use a fixed drill bit to drill the hole in the center.
00:45
However, when we start moving off of the center, we're using C-axis operations and we need to incorporate live tooling.
00:54
Let's go ahead and check the tool library for this document and see what tools we have available.
00:59
We have a 1/2” drill, we have a 0.201 which is a drill size for a 1/4-20 tap.
01:06
We have a 1/4-20 tap and then we have a 1/4" flat endmill.
01:09
So we have all the tools that we need for this.
01:12
But we can always use inspect and just double check the size of the holes.
01:16
So that's a 201 and the center should be a 1/2” and then the 1/4" endmill will be used for the small pockets.
01:23
So what we want to do now that we already understand how to create a drilling operation on the axis of rotation,
01:30
we're going to use drilling operations but we're going to do it off the axis of rotation.
01:35
We're going to select our tool from our document which is going to be our 0.201.
01:39
Again, we're skipping pre drilling the holes and we're just using the correct drill bit sizes.
01:44
But in reality you would spot drill all these positions first.
01:48
Now that we have our tool selected, notice that the spindle rpm is going to be set here and that's going to be used in a live tooling situation.
01:58
So this is where you have some sort of tool holder setup that allows you to spin the tools.
02:04
So we're going to be spinning this drill using live tooling and the part itself will not be rotating.
02:10
We'll be using the spindle to position it and then we'll be using the live tooling to actually spin our drill bit.
02:18
Now that we have our geometry section, we want to select at least one of the holes.
02:24
What we can do here is we can select one hole and we can pattern it.
02:28
Or we can manually select each of the holes that we want to drill.
02:32
There are different reasons why you would choose one over the other.
02:35
If the drills are in a concentric pattern, we can use either option, it will be fine.
02:40
But in some instances you might not have a traditional pattern that you can do and you might want to select all the holes.
02:46
Of course, all the same options that we have in a milling setup, selecting the same diameter.
02:53
Auto merging hole segments and so on.
02:55
These all will allow us to make that same selection in the lathe situation.
03:02
Then we want to determine the heights now.
03:04
Because we selected the faces of each hole, the heights are already based on the hole top and bottom.
03:09
That's going to be fine for this.
03:11
I am going to use drill tip through bottom.
03:14
This is going to allow me to have a little bit of extra material removed from the bottom of the hole because we are going to be tapping them.
03:20
And then the drilling cycle, I'm going to be using a partial retract.
03:24
So this is going to be a peck cycle that allows me to pull the drill bit back out a little bit to help with chip clearance.
03:30
But ultimately what's actually happening is it's not fully retracting until the hole is completely drilled.
03:37
So we're going to say OK, allow it to generate that and then take a look at simulation.
03:42
So as we're simulating, we can see that the drill is pecking in each position and then it's moving over to the next.
03:49
This is a great situation because it's coming all the way back around.
03:53
And what we can actually do is we can take this toolpath and we can duplicate it and then we can modify the duplicate to be our tapping operation.
04:03
So I'm going to edit this starting with the tool.
04:07
Now we're going to select our 1/4-20 tap.
04:11
The holes are already going to be selected but we can reverse the order.
04:15
Which means that what we're doing is we're going to the last position we drilled and we're working our way back.
04:21
So that means that the spindle on our machine is going to index based on moving back and forth.
04:28
Now there are some situations where you would want to be aware of the method that we're doing here.
04:33
If you don't have great repeatability in the spindle that you're using, you might want to drill and tap each hole position before moving to the next.
04:43
Hopefully that's not an issue.
04:44
But there are certain instances where you might want to consider drilling and tapping each position and then patterning that entire thing.
04:51
Or redoing all of those operations.
04:54
Next the heights, because we used that drill tip through bottom on the previous operation,
04:59
I'm going to allow it to go all the way to the hole bottom knowing that we have a small amount of clearance.
05:04
Then for the cycle because we did duplicate it, we will have to manually select tapping,
05:09
because it won't automatically change based on our tool selection.
05:13
So that is one downside.
05:14
When we're duplicating a drilling operation, moving it to a tapping operation,
05:18
we need to double check that tapping cycle or else you will break a tap extremely fast.
05:25
So now that we have our tapping cycle in each position, let's select the entire setup and let's simulate.
05:30
So now, as we're going through we're drilling each position, moving in a clockwise manner.
05:36
Once we get to that last hole position and we switch to a tap, now we're moving backwards in a counter clockwise fashion.
05:43
Now again, we don't necessarily need to do that, but based on the pre-selected holes,
05:49
because we duplicated that operation, it was easy for us to just reverse it.
05:54
Otherwise it's going to move to this position and then work its way back around.
05:57
Either will be fine. It's not a huge amount of distance to go between the two.
06:01
But if you don't have to reposition the spindle, then it's best to just keep it in the same location between operations.
06:09
From here, let's always make sure that we do save often before moving on to the next step.
Step-by-step guide
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