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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
In this practice, you’ll create toolpaths to machine the piston OP1.
Exercise
Transcript
00:00
This is a practice exercise video solution.
00:03
In
00:03
this practice exercise, we're going to be using the supply data set,
00:07
Caliper dash piston program practice dot F 3D.
00:10
We're gonna be taking a look at how we can program
00:12
tool paths even though that's outside the scope of this course
00:16
to get started.
00:17
We are going to be in the manufacture workspace and note that we already have
00:20
one and
00:21
two programmed.
00:23
We're going to right, click on op one
00:24
and select duplicate.
00:27
When we duplicate this, we're going to activate OP one
00:31
and notice all the tool paths are in here
00:34
to get started. We're going to select all the tool paths, right? Click and delete.
00:38
We want to create our own variations of them.
00:41
When we're programming tool,
00:42
pas there's a decision that needs to be made about what
00:45
order of operations and which tool paths and tools to use
00:48
in this practice.
00:49
We're going to be providing the tools that we're using
00:52
and walk you through the process of creating those tool paths
00:55
to get started. When we select our setup, we can see that we have a block of stock.
00:60
This is going to be the rough stock and material needs to be
01:03
removed from the top of it down to the top of our part.
01:06
This can be done in subsequent steps after we rough the part.
01:10
But in this instance, we're gonna be removing that material first.
01:13
So to get started, we're gonna go to our two D drop down and select two D face
01:18
from our tool list.
01:19
We're going to be using the same tools in this course,
01:21
we're going to select tool number seven,
01:23
hit, select
01:24
and then we're gonna move on to our second tab, which is geometry
01:28
by default fusion will automatically take into consideration the
01:32
size of stock that's defined in our setup.
01:35
No selections need to be made here so we can move on to our heights.
01:39
Also by default fusion will know that we have a model top,
01:44
it knows where the top of our part is.
01:46
So no selection needs to be made.
01:48
Our passes section lets us dictate the number of passes,
01:51
pass extensions and other details of the tool path.
01:55
For our example, we're gonna be doing a larger step over,
01:58
we're using a half inch tool and we're gonna step over 0.2 inches and hit enter.
02:04
This will limit the number of passes back and forth.
02:06
The tool needs to make across the stock.
02:09
If we rotate our part back to a front view,
02:11
we can see now that the top of our part is at the tool path.
02:15
This means that we've effectively removed the material from the top.
02:19
And we're going to select the activate option next to our opt one.
02:23
And this is gonna take us back to our named view.
02:26
The next thing that we need to do is remove the
02:29
material from the inside and the outside in a roughing operation.
02:33
When our machining parts,
02:34
the roughing operation is going to remove most of the material and leave a
02:38
small amount of material behind that we can do in a finishing tool path
02:42
for our roughing tool paths. We're going to be using the two D adaptive clearing.
02:47
This is an adaptive tool path which has a specific
02:50
type of tool motion to limit the amount of tool.
02:52
We, we're
02:53
gonna select two D adaptive clearing.
02:55
We're gonna use that same tool number seven,
02:57
our half inch flat end mill and in our geometry selection,
02:60
we'll rotate the part around and select the inside of our part.
03:03
We're not gonna make any selections on our heights.
03:06
We're gonna move over to passes and pay close attention to stock to leave
03:10
this 0.02 inches is the amount of material left
03:13
on the bottom of our part in the axial direction
03:16
and the sides of our part in the radial direction.
03:19
This is the amount of material that is left after we finish our roughing operation.
03:23
This means we need to come back with a finishing tool path and clear it off.
03:27
We're gonna select OK. And allow it to generate the tool path
03:30
because of the size of the bore in our part and the size of our tool,
03:34
the amount of tool motion is relatively limited.
03:37
It's using this red circular or helical entry in the center of our part.
03:41
And that's gonna remove material as it goes down to the bottom
03:44
and then it works its way around removing material from the sides.
03:47
We're gonna repeat this process using a two D
03:50
adaptive clearing on the outside of the part.
03:52
In this instance, we're once again going to use tool number seven.
03:55
And this time, we're gonna select the outside edge of our part.
03:59
Notice that it gives us a blue preview.
04:02
This is telling us that it's cutting the outside.
04:04
If we click on this red arrow, it'll switch to the inside.
04:07
But note that we will be removing some material on the walls.
04:10
So we're gonna select the outside.
04:12
But since our selection is at the top of our part,
04:14
we need to tell it exactly where the bottom is.
04:17
This is gonna be in our height section,
04:19
we can go to our bottom height and select the model bottom or stock bottom options.
04:24
Keep in mind if you select stock bottom,
04:26
this is gonna be a portion of the material that's held in the vice and
04:29
you're likely going to crash the tool into the hard jaws of the vice.
04:33
So we're gonna select the model bottom.
04:35
And if we look at this from the side.
04:36
This is gonna allow us to remove all the way down to this edge.
04:40
However, we are gonna be leaving 0.02 amount of material.
04:45
So this means if we want to go below that, we need to have an additional offset.
04:49
If I set this to 0.05 notice the plane goes up
04:52
in the vertical direction because that's the positive Z direction.
04:56
So we need to have a minus value and say, OK,
04:59
now the tool is going to go around the outside.
05:01
Once again,
05:02
I'm going to click the activate button which will go back to our named view.
05:05
Now, if we select each of these tool paths, we have a facing
05:08
a two D adaptive on the inside and A two D adaptive on the outside.
05:13
This is going to allow us to completely rough the part.
05:16
However, what we need to do now is finish our part.
05:19
When we finish our part, we can use the same tool.
05:22
In this case, our tool number seven, half inch and mill.
05:25
As long as it's a correct type of tool for finishing tool paths.
05:28
Generally a roughing tool will allow you to remove more material quickly with a much
05:33
coarser cut and a finishing tool will generally allow you to run at higher speeds
05:38
and remove material with a smoother surface finish.
05:41
However, for this course, we're going to be using tool number seven,
05:43
which can be used as both a roughing and a finishing tool.
05:47
In order to remove the rest of the material from the inside,
05:50
we have a couple of tool path options.
05:52
We can use a two D contour which allows us to select an edge and machine along that edge
05:58
because our tool is relatively large compared to the inside bore of the part.
06:02
This two D contour tool path would work.
06:05
However,
06:05
I'm gonna select a two D pocket since this is
06:08
different than how it was programmed in the course.
06:10
We're gonna use that same half inch tool tool number seven.
06:14
And in our geometry selection, I'm gonna select this bottom face.
06:17
When we use a pocket tool path, it'll take the edge selection shown in darker blue
06:22
and it'll use that as its contour.
06:25
It's also going to allow us to finish, not only the side walls of our part,
06:28
but the bottom face
06:30
inside of our passes section, make sure that we disable stock to leave.
06:34
And we're gonna say, OK,
06:36
the tool is gonna do a heal
06:38
entry.
06:38
Now, in this case,
06:39
that's gonna waste quite a bit of time since materials already been removed.
06:42
However,
06:43
we're not going to dive deep into some of
06:44
these settings until later on in future courses.
06:47
But this allows us to get a finished version of that tool path on the inside.
06:51
We're going to repeat this process on the outside.
06:54
However, instead of using a two D pocket, we'll use a two D contour.
06:58
When we select a two D contour,
06:60
we just need to select an edge on the outside of our part.
07:03
We can go to our heights
07:06
and make sure that we are using the bottom of the part
07:09
and we have that additional offset.
07:11
Remember when we used our two D adaptive clearing on the outside,
07:15
we use the value of minus 0.05.
07:18
However, that tool path left behind 0.02 stock.
07:22
This means if I were to take my two D contour down to minus
07:30
So we need to account for that by using a value of 0.03.
07:35
We're gonna say, OK,
07:36
we're gonna allow that tool path to cut the geometry on the outside and a single pass.
07:41
The last thing this part needs is a
07:43
Cher at the top edge.
07:45
If we left click, we can see that these champers have been added to the model.
07:49
We're gonna go to our two D drop down and select two D
07:52
Cher.
07:53
We won't be able to use tool seven for this.
07:55
Since champ for tool paths require a very specific type of tool,
07:58
this is going to be tool number two, our champ for mill and we'll select it
08:03
for our geometry selection.
08:04
We need to decide whether or not we're gonna be machining a champ for based on a
08:14
I'm gonna select both top edges for the inside and the outside
08:17
move to my passes section and notice that we can dictate the champ for values.
08:22
In this case, our champ for width is gonna be zero.
08:25
The champ for tip offset is how much further down the tool is gonna go from this edge.
08:29
And I'm gonna use a value of 0.08 inches
08:32
and our chamfer clearance in this case is not applicable.
08:35
But if there is extra solid geometry around this cham for this is
08:38
the amount of clearance that it would leave between the tool and the part
08:42
we're gonna say, OK, and allow it to cut that geometry.
08:45
The preview on the screen in green is going to be our in process stock model.
08:50
This is going to allow us to see whether or not that Cher
08:52
was cut properly.
08:54
Once again, we're going to go back to activate,
08:56
which would go back to our named view for this operation.
08:59
That's going to allow us to see each of the tool paths as we click through
09:03
our two D adaptive on the inside to clear out most of the material,
09:06
two D adaptive on the outside to clear out the material on the outside, our
09:09
pocket for the inside two D contour for the outside
09:13
and our champ for on the top edge
09:15
because this part also has a chamfer on the
09:18
bottom edge and the other side needs to be faced
09:21
that will be done in a second operation where this part needs to be held in some way,
09:26
generally with complex shaped parts, that means some sort of fixture or soft jaw.
09:30
We're gonna take a look at soft jaws in a future module in this course.
09:34
But for right now,
09:35
make sure that you've saved your work and you've reviewed what we've
09:38
done if you're interested in learning how to program these tool paths.
Video transcript
00:00
This is a practice exercise video solution.
00:03
In
00:03
this practice exercise, we're going to be using the supply data set,
00:07
Caliper dash piston program practice dot F 3D.
00:10
We're gonna be taking a look at how we can program
00:12
tool paths even though that's outside the scope of this course
00:16
to get started.
00:17
We are going to be in the manufacture workspace and note that we already have
00:20
one and
00:21
two programmed.
00:23
We're going to right, click on op one
00:24
and select duplicate.
00:27
When we duplicate this, we're going to activate OP one
00:31
and notice all the tool paths are in here
00:34
to get started. We're going to select all the tool paths, right? Click and delete.
00:38
We want to create our own variations of them.
00:41
When we're programming tool,
00:42
pas there's a decision that needs to be made about what
00:45
order of operations and which tool paths and tools to use
00:48
in this practice.
00:49
We're going to be providing the tools that we're using
00:52
and walk you through the process of creating those tool paths
00:55
to get started. When we select our setup, we can see that we have a block of stock.
00:60
This is going to be the rough stock and material needs to be
01:03
removed from the top of it down to the top of our part.
01:06
This can be done in subsequent steps after we rough the part.
01:10
But in this instance, we're gonna be removing that material first.
01:13
So to get started, we're gonna go to our two D drop down and select two D face
01:18
from our tool list.
01:19
We're going to be using the same tools in this course,
01:21
we're going to select tool number seven,
01:23
hit, select
01:24
and then we're gonna move on to our second tab, which is geometry
01:28
by default fusion will automatically take into consideration the
01:32
size of stock that's defined in our setup.
01:35
No selections need to be made here so we can move on to our heights.
01:39
Also by default fusion will know that we have a model top,
01:44
it knows where the top of our part is.
01:46
So no selection needs to be made.
01:48
Our passes section lets us dictate the number of passes,
01:51
pass extensions and other details of the tool path.
01:55
For our example, we're gonna be doing a larger step over,
01:58
we're using a half inch tool and we're gonna step over 0.2 inches and hit enter.
02:04
This will limit the number of passes back and forth.
02:06
The tool needs to make across the stock.
02:09
If we rotate our part back to a front view,
02:11
we can see now that the top of our part is at the tool path.
02:15
This means that we've effectively removed the material from the top.
02:19
And we're going to select the activate option next to our opt one.
02:23
And this is gonna take us back to our named view.
02:26
The next thing that we need to do is remove the
02:29
material from the inside and the outside in a roughing operation.
02:33
When our machining parts,
02:34
the roughing operation is going to remove most of the material and leave a
02:38
small amount of material behind that we can do in a finishing tool path
02:42
for our roughing tool paths. We're going to be using the two D adaptive clearing.
02:47
This is an adaptive tool path which has a specific
02:50
type of tool motion to limit the amount of tool.
02:52
We, we're
02:53
gonna select two D adaptive clearing.
02:55
We're gonna use that same tool number seven,
02:57
our half inch flat end mill and in our geometry selection,
02:60
we'll rotate the part around and select the inside of our part.
03:03
We're not gonna make any selections on our heights.
03:06
We're gonna move over to passes and pay close attention to stock to leave
03:10
this 0.02 inches is the amount of material left
03:13
on the bottom of our part in the axial direction
03:16
and the sides of our part in the radial direction.
03:19
This is the amount of material that is left after we finish our roughing operation.
03:23
This means we need to come back with a finishing tool path and clear it off.
03:27
We're gonna select OK. And allow it to generate the tool path
03:30
because of the size of the bore in our part and the size of our tool,
03:34
the amount of tool motion is relatively limited.
03:37
It's using this red circular or helical entry in the center of our part.
03:41
And that's gonna remove material as it goes down to the bottom
03:44
and then it works its way around removing material from the sides.
03:47
We're gonna repeat this process using a two D
03:50
adaptive clearing on the outside of the part.
03:52
In this instance, we're once again going to use tool number seven.
03:55
And this time, we're gonna select the outside edge of our part.
03:59
Notice that it gives us a blue preview.
04:02
This is telling us that it's cutting the outside.
04:04
If we click on this red arrow, it'll switch to the inside.
04:07
But note that we will be removing some material on the walls.
04:10
So we're gonna select the outside.
04:12
But since our selection is at the top of our part,
04:14
we need to tell it exactly where the bottom is.
04:17
This is gonna be in our height section,
04:19
we can go to our bottom height and select the model bottom or stock bottom options.
04:24
Keep in mind if you select stock bottom,
04:26
this is gonna be a portion of the material that's held in the vice and
04:29
you're likely going to crash the tool into the hard jaws of the vice.
04:33
So we're gonna select the model bottom.
04:35
And if we look at this from the side.
04:36
This is gonna allow us to remove all the way down to this edge.
04:40
However, we are gonna be leaving 0.02 amount of material.
04:45
So this means if we want to go below that, we need to have an additional offset.
04:49
If I set this to 0.05 notice the plane goes up
04:52
in the vertical direction because that's the positive Z direction.
04:56
So we need to have a minus value and say, OK,
04:59
now the tool is going to go around the outside.
05:01
Once again,
05:02
I'm going to click the activate button which will go back to our named view.
05:05
Now, if we select each of these tool paths, we have a facing
05:08
a two D adaptive on the inside and A two D adaptive on the outside.
05:13
This is going to allow us to completely rough the part.
05:16
However, what we need to do now is finish our part.
05:19
When we finish our part, we can use the same tool.
05:22
In this case, our tool number seven, half inch and mill.
05:25
As long as it's a correct type of tool for finishing tool paths.
05:28
Generally a roughing tool will allow you to remove more material quickly with a much
05:33
coarser cut and a finishing tool will generally allow you to run at higher speeds
05:38
and remove material with a smoother surface finish.
05:41
However, for this course, we're going to be using tool number seven,
05:43
which can be used as both a roughing and a finishing tool.
05:47
In order to remove the rest of the material from the inside,
05:50
we have a couple of tool path options.
05:52
We can use a two D contour which allows us to select an edge and machine along that edge
05:58
because our tool is relatively large compared to the inside bore of the part.
06:02
This two D contour tool path would work.
06:05
However,
06:05
I'm gonna select a two D pocket since this is
06:08
different than how it was programmed in the course.
06:10
We're gonna use that same half inch tool tool number seven.
06:14
And in our geometry selection, I'm gonna select this bottom face.
06:17
When we use a pocket tool path, it'll take the edge selection shown in darker blue
06:22
and it'll use that as its contour.
06:25
It's also going to allow us to finish, not only the side walls of our part,
06:28
but the bottom face
06:30
inside of our passes section, make sure that we disable stock to leave.
06:34
And we're gonna say, OK,
06:36
the tool is gonna do a heal
06:38
entry.
06:38
Now, in this case,
06:39
that's gonna waste quite a bit of time since materials already been removed.
06:42
However,
06:43
we're not going to dive deep into some of
06:44
these settings until later on in future courses.
06:47
But this allows us to get a finished version of that tool path on the inside.
06:51
We're going to repeat this process on the outside.
06:54
However, instead of using a two D pocket, we'll use a two D contour.
06:58
When we select a two D contour,
06:60
we just need to select an edge on the outside of our part.
07:03
We can go to our heights
07:06
and make sure that we are using the bottom of the part
07:09
and we have that additional offset.
07:11
Remember when we used our two D adaptive clearing on the outside,
07:15
we use the value of minus 0.05.
07:18
However, that tool path left behind 0.02 stock.
07:22
This means if I were to take my two D contour down to minus
07:30
So we need to account for that by using a value of 0.03.
07:35
We're gonna say, OK,
07:36
we're gonna allow that tool path to cut the geometry on the outside and a single pass.
07:41
The last thing this part needs is a
07:43
Cher at the top edge.
07:45
If we left click, we can see that these champers have been added to the model.
07:49
We're gonna go to our two D drop down and select two D
07:52
Cher.
07:53
We won't be able to use tool seven for this.
07:55
Since champ for tool paths require a very specific type of tool,
07:58
this is going to be tool number two, our champ for mill and we'll select it
08:03
for our geometry selection.
08:04
We need to decide whether or not we're gonna be machining a champ for based on a
08:14
I'm gonna select both top edges for the inside and the outside
08:17
move to my passes section and notice that we can dictate the champ for values.
08:22
In this case, our champ for width is gonna be zero.
08:25
The champ for tip offset is how much further down the tool is gonna go from this edge.
08:29
And I'm gonna use a value of 0.08 inches
08:32
and our chamfer clearance in this case is not applicable.
08:35
But if there is extra solid geometry around this cham for this is
08:38
the amount of clearance that it would leave between the tool and the part
08:42
we're gonna say, OK, and allow it to cut that geometry.
08:45
The preview on the screen in green is going to be our in process stock model.
08:50
This is going to allow us to see whether or not that Cher
08:52
was cut properly.
08:54
Once again, we're going to go back to activate,
08:56
which would go back to our named view for this operation.
08:59
That's going to allow us to see each of the tool paths as we click through
09:03
our two D adaptive on the inside to clear out most of the material,
09:06
two D adaptive on the outside to clear out the material on the outside, our
09:09
pocket for the inside two D contour for the outside
09:13
and our champ for on the top edge
09:15
because this part also has a chamfer on the
09:18
bottom edge and the other side needs to be faced
09:21
that will be done in a second operation where this part needs to be held in some way,
09:26
generally with complex shaped parts, that means some sort of fixture or soft jaw.
09:30
We're gonna take a look at soft jaws in a future module in this course.
09:34
But for right now,
09:35
make sure that you've saved your work and you've reviewed what we've
09:38
done if you're interested in learning how to program these tool paths.
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