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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 video, we'll simulate toolpaths.
00:05
After completing this step, you'll be able to simulate a tool path.
00:11
In Fusion 360, we want to carry on with our CAD CAM milling dataset and our CAD CAM Lathe dataset.
00:17
You can also upload the supply datasets, CAD CAM Milling dataset 1 verify and CAD CAM Lathe dataset
00:25
From here, we want to talk about simulation and this is something that we've already done but we want to explore some additional options.
00:32
We're going to first focus on the CAD CAM Milling dataset.
00:36
We want to take a look at Op 1 and Op 2.
00:40
When we created these we added a Kurt D688 vice for Op 1 and Op 2. These can be hidden and shown at any point in time,
00:50
but whenever we're using them in a setup and we classify them as a fixture.
00:54
The collision checking is only available when we're looking at that specific fixture.
00:60
For example, if we were to simulate Op 2, we would be looking at the second instance of this Vice and we would need to rotate this around.
01:08
We can also expand our named views and take a look at Op 2 iso.
01:12
So with Op 2 selected, let's go to actions and simulate.
01:17
We can jump ahead each operation and note the position of the tool.
01:22
It's looking at our Op 1 tool paths because of where the cursor was even though Op 2 is currently selected.
01:29
So let's close out of here and let's make sure that we select Op 2 before we go to simulate.
01:36
Now you can see the tools in the correct position and we can jump ahead after each operation.
01:41
Or we can press play and allow it to go through.
01:44
We want to make sure that we are machining everything as expected and this looks pretty good.
01:49
But what we're not taking into account is what was removed in Op 1.
01:53
In order for us to verify everything.
01:56
We need to select the entire setups folder which will include Op 1 and Op 2.
02:01
A problem that comes up here is that we have collision issues with additional fixtures.
02:06
I'm going to go ahead and hide the Kurt D688 vice.
02:09
And I'm going to allow it to play through, noting that it's stopping on collision.
02:15
Now the reason it's colliding is because it's checking against the fixture in Op 2.
02:20
What we're going to do is turn off stop on collision and allow it to continue playing.
02:25
What we should see here is that we've removed all the material from both sides.
02:29
We've drilled the holes in the slots and we can also take a look at all the geometry that's been machined.
02:35
So this is a great way for us to validate both operations at the same time.
02:39
However, it doesn't take into account the collision checking as it does when we're looking at a single operation or a single setup.
02:47
Let's go ahead and close this.
02:49
Let's activate Op 1 and let's take a look at just Op 1 inside of our setup.
02:54
Once again we'll go to simulate and I'm going to select the home view,
02:58
as we play through its facing the top of the part and you'll notice that the underlying geometry is green.
03:04
Whenever we get to the original part that we're trying to machine too, this is based on the stock colorization set to comparison.
03:14
If we change it to material it'll keep a consistent material no matter what has been removed.
03:20
If we change it to operation it'll change the color as it changes operations and we can also change it by tool.
03:27
This can be helpful if you want to validate all the stock that's getting removed based on each tool,
03:32
or if you want to check it based on the comparison of the original part.
03:37
One thing you'll note is that the color comparison is green when we removed all the material,
03:42
it's blue when there's material left behind and it's red if too much material has been removed.
03:48
If we hide our part, you'll note inside the holes it's showing is red.
03:52
This is because those areas are getting tapped in the as modeled size of the hole was the minimum thread diameter.
03:60
So this shows up as red as too much material being removed but in reality we know that this is okay.
04:06
There are times when you need to check out these collisions,
04:10
but you need to verify whether or not their real problems in the case of taking a rigid tap down into a hole.
04:17
The red shown in those holes is not an issue assuming you're using the right size tool.
04:22
Some other options that we have are things like changing the transparency so you can see the underlying part.
04:28
We can also change the view port.
04:31
Let's go ahead and use the go to beginning of tool pass option and as we begin to play note that the tool is moving.
04:38
If we zoom out and we change the view to tool this will keep the tool steady and it will allow the part to move around.
04:46
In reality the tool is going to move up and down in Z and the part will move in X and Y.
04:51
So depending on how you're viewing your specific model, you might want to change that option.
04:56
We can also turn on or off the holder, the flute, a shaft or even the entire tool and just play through without the tool itself.
05:04
This can be helpful especially when your machining in small areas and you want to see the cuts as they happen without the tool being in the way.
05:12
So keep in mind that we have all of these various options that can help us with the visualization,
05:16
including turning on and off the actual tool path traces.
05:20
Next let's take a look at the info and statistics tabs. The info tab will tell you exactly where the tool is in the X, Y, Z position.
05:30
It'll tell you information about the spindle speed and feed rate whether or not it's doing a rapid, a finish or retract move, what the operation is.
05:39
As well as the tool that you're using.
05:41
If we go to the statistics, you can see information about the total machining time, the distance that the tool is moving,
05:48
the number of operations and the number of tool changes.
05:51
From here, let's go ahead and close this and go over to our CAD CAM Lathe dataset.
05:56
We've already simulated this but I want to make note of a few other things.
06:01
When we're using in process stock generation as can be turned on from the utilities that stock is going to be carried into our simulation.
06:09
For example, if I just take a look at this chamfer tool path and I go in to simulate,
06:14
all the stock that's been previously removed is already gone and we can simply play through just the chamfer operation.
06:21
This is the same whether or not we're looking at a very specific operation or a group of operations by selecting multiples.
06:28
We can simulate and already see the stock that's been removed beforehand.
06:33
This can be extremely helpful when trying to validate a single operation without having to generate all of the previously removed stock.
06:40
Once again we can change whether or not the model or the tool is moving in the case of a CNC Lathe simulation.
06:47
the default is going to be model and this can be pretty helpful but we can also change it to tool.
06:54
For example, if we play through note that the tool stay stationary and the model moves.
06:59
In this case, I'm going to close out and I want to mention just a few more things before we move on,
07:04
just like in simulation we can right click on a tool path and take a look at things like the machining time.
07:10
This will help us better understand the total amount of time the tool is moving, the distance, the tool changes and the total machining time.
07:19
We can also use this data to validate some of the various parameters.
07:23
For example, if I go into the machining time, you can see at 100% scale, we're feeding 115 mm.
07:30
It's going to take a total amount of time of two minutes and four seconds.
07:34
If you run this program on your machine and it actually takes a little bit longer, let's say 2.5 minutes,
07:41
we can increase or decrease this feed scale to get a little bit closer to that actual value.
07:47
For example, if we know that it's going to take four minutes,
07:50
we can change this feed scale to 50% to get a more realistic estimation of the amount of time it's going to take to machine part.
07:58
This can be helpful to account for some differences between the various operations and your physical machine.
08:05
No changes have been made at this point, but if you have made any changes, make sure that you do go back and save all your designs before moving on.
Video transcript
00:02
In this video, we'll simulate toolpaths.
00:05
After completing this step, you'll be able to simulate a tool path.
00:11
In Fusion 360, we want to carry on with our CAD CAM milling dataset and our CAD CAM Lathe dataset.
00:17
You can also upload the supply datasets, CAD CAM Milling dataset 1 verify and CAD CAM Lathe dataset
00:25
From here, we want to talk about simulation and this is something that we've already done but we want to explore some additional options.
00:32
We're going to first focus on the CAD CAM Milling dataset.
00:36
We want to take a look at Op 1 and Op 2.
00:40
When we created these we added a Kurt D688 vice for Op 1 and Op 2. These can be hidden and shown at any point in time,
00:50
but whenever we're using them in a setup and we classify them as a fixture.
00:54
The collision checking is only available when we're looking at that specific fixture.
00:60
For example, if we were to simulate Op 2, we would be looking at the second instance of this Vice and we would need to rotate this around.
01:08
We can also expand our named views and take a look at Op 2 iso.
01:12
So with Op 2 selected, let's go to actions and simulate.
01:17
We can jump ahead each operation and note the position of the tool.
01:22
It's looking at our Op 1 tool paths because of where the cursor was even though Op 2 is currently selected.
01:29
So let's close out of here and let's make sure that we select Op 2 before we go to simulate.
01:36
Now you can see the tools in the correct position and we can jump ahead after each operation.
01:41
Or we can press play and allow it to go through.
01:44
We want to make sure that we are machining everything as expected and this looks pretty good.
01:49
But what we're not taking into account is what was removed in Op 1.
01:53
In order for us to verify everything.
01:56
We need to select the entire setups folder which will include Op 1 and Op 2.
02:01
A problem that comes up here is that we have collision issues with additional fixtures.
02:06
I'm going to go ahead and hide the Kurt D688 vice.
02:09
And I'm going to allow it to play through, noting that it's stopping on collision.
02:15
Now the reason it's colliding is because it's checking against the fixture in Op 2.
02:20
What we're going to do is turn off stop on collision and allow it to continue playing.
02:25
What we should see here is that we've removed all the material from both sides.
02:29
We've drilled the holes in the slots and we can also take a look at all the geometry that's been machined.
02:35
So this is a great way for us to validate both operations at the same time.
02:39
However, it doesn't take into account the collision checking as it does when we're looking at a single operation or a single setup.
02:47
Let's go ahead and close this.
02:49
Let's activate Op 1 and let's take a look at just Op 1 inside of our setup.
02:54
Once again we'll go to simulate and I'm going to select the home view,
02:58
as we play through its facing the top of the part and you'll notice that the underlying geometry is green.
03:04
Whenever we get to the original part that we're trying to machine too, this is based on the stock colorization set to comparison.
03:14
If we change it to material it'll keep a consistent material no matter what has been removed.
03:20
If we change it to operation it'll change the color as it changes operations and we can also change it by tool.
03:27
This can be helpful if you want to validate all the stock that's getting removed based on each tool,
03:32
or if you want to check it based on the comparison of the original part.
03:37
One thing you'll note is that the color comparison is green when we removed all the material,
03:42
it's blue when there's material left behind and it's red if too much material has been removed.
03:48
If we hide our part, you'll note inside the holes it's showing is red.
03:52
This is because those areas are getting tapped in the as modeled size of the hole was the minimum thread diameter.
03:60
So this shows up as red as too much material being removed but in reality we know that this is okay.
04:06
There are times when you need to check out these collisions,
04:10
but you need to verify whether or not their real problems in the case of taking a rigid tap down into a hole.
04:17
The red shown in those holes is not an issue assuming you're using the right size tool.
04:22
Some other options that we have are things like changing the transparency so you can see the underlying part.
04:28
We can also change the view port.
04:31
Let's go ahead and use the go to beginning of tool pass option and as we begin to play note that the tool is moving.
04:38
If we zoom out and we change the view to tool this will keep the tool steady and it will allow the part to move around.
04:46
In reality the tool is going to move up and down in Z and the part will move in X and Y.
04:51
So depending on how you're viewing your specific model, you might want to change that option.
04:56
We can also turn on or off the holder, the flute, a shaft or even the entire tool and just play through without the tool itself.
05:04
This can be helpful especially when your machining in small areas and you want to see the cuts as they happen without the tool being in the way.
05:12
So keep in mind that we have all of these various options that can help us with the visualization,
05:16
including turning on and off the actual tool path traces.
05:20
Next let's take a look at the info and statistics tabs. The info tab will tell you exactly where the tool is in the X, Y, Z position.
05:30
It'll tell you information about the spindle speed and feed rate whether or not it's doing a rapid, a finish or retract move, what the operation is.
05:39
As well as the tool that you're using.
05:41
If we go to the statistics, you can see information about the total machining time, the distance that the tool is moving,
05:48
the number of operations and the number of tool changes.
05:51
From here, let's go ahead and close this and go over to our CAD CAM Lathe dataset.
05:56
We've already simulated this but I want to make note of a few other things.
06:01
When we're using in process stock generation as can be turned on from the utilities that stock is going to be carried into our simulation.
06:09
For example, if I just take a look at this chamfer tool path and I go in to simulate,
06:14
all the stock that's been previously removed is already gone and we can simply play through just the chamfer operation.
06:21
This is the same whether or not we're looking at a very specific operation or a group of operations by selecting multiples.
06:28
We can simulate and already see the stock that's been removed beforehand.
06:33
This can be extremely helpful when trying to validate a single operation without having to generate all of the previously removed stock.
06:40
Once again we can change whether or not the model or the tool is moving in the case of a CNC Lathe simulation.
06:47
the default is going to be model and this can be pretty helpful but we can also change it to tool.
06:54
For example, if we play through note that the tool stay stationary and the model moves.
06:59
In this case, I'm going to close out and I want to mention just a few more things before we move on,
07:04
just like in simulation we can right click on a tool path and take a look at things like the machining time.
07:10
This will help us better understand the total amount of time the tool is moving, the distance, the tool changes and the total machining time.
07:19
We can also use this data to validate some of the various parameters.
07:23
For example, if I go into the machining time, you can see at 100% scale, we're feeding 115 mm.
07:30
It's going to take a total amount of time of two minutes and four seconds.
07:34
If you run this program on your machine and it actually takes a little bit longer, let's say 2.5 minutes,
07:41
we can increase or decrease this feed scale to get a little bit closer to that actual value.
07:47
For example, if we know that it's going to take four minutes,
07:50
we can change this feed scale to 50% to get a more realistic estimation of the amount of time it's going to take to machine part.
07:58
This can be helpful to account for some differences between the various operations and your physical machine.
08:05
No changes have been made at this point, but if you have made any changes, make sure that you do go back and save all your designs before moving on.
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