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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
00:00
Dry run AC NC program. After completing this video, you will be able to
00:05
run a programming graphics,
00:07
identify distance to go on screen
00:10
and adjust the speed of rapid movements
00:13
with our tool and work offsets all set in our program loaded.
00:17
It's time for us to dry run our part.
00:20
We're gonna go ahead and run this program in
00:22
graphics first and then we're gonna run it a
00:25
couple inches above the part just to make sure
00:28
that everything is where we expect it to be
00:31
before we cut actual metal. This is a machinist equivalent of measure twice cut.
00:36
Once
00:37
we will start by running our part in graphics mode
00:40
on a newer NGC control.
00:42
We press the graphics button once on classic controls,
00:46
we would press the setting graph key twice.
00:49
Now, this is important before we press that green button.
00:53
We need to really make sure that we are indeed in graphics mode.
00:57
Otherwise the machine is gonna move for real
01:01
and
01:01
we are in graphics mode, we see the large white screen that's visible and it says
01:06
graphics
01:07
just in case we might want to keep our finger near the feed hold button
01:10
to stop things if it were to move.
01:13
We're good. So we'll press the green button.
01:19
Now, if you got
01:21
an alarm,
01:22
let's say A Z over travel alarm,
01:25
then we've done something wrong with our set up and it's time for us
01:28
to go back and watch that tool and work off that video again.
01:32
Maybe there's something wrong with our G 54 our W CS one
01:37
set up.
01:38
Now, our program ran without alarms. We did everything right.
01:43
But I don't like the way it's centered up in our screen.
01:45
We can fix this, we can zoom and center to make things more clear.
01:50
We'll follow the on screen instructions. F two enable zoom.
01:55
We can press the page up or page down button,
01:59
use the arrow keys to move things around
02:04
and press enter to lock in our, our frame
02:09
things look good. If we were to run graphics again at this moment,
02:15
we could see exactly where our tool starts and finishes.
02:18
We want to make sure that everything matches what we
02:20
saw on our fusion 360 screen and it does,
02:23
it looks great.
02:25
And if things were flying by too fast, we can slow things down.
02:29
Using the F three key F three is slower. F four is faster.
02:34
Well, everything looks great in graphics.
02:36
So I think it's time for us to dry, run our part above our real stock.
02:40
Now, this might be the very first part you've ever run.
02:44
So we wanna be extra careful.
02:46
We're gonna run things a couple inches above our material here just to
02:51
give us time to stop in case we've done something incorrectly here.
02:55
And we could accomplish this in a couple of different ways.
02:57
We could move our tool offsets or we could move our work offset.
03:01
Tool offsets affect only one tool at a time though, while a work offset
03:07
affects all of our tools at once. So that's what we're gonna change
03:11
with our G 54 Z work offset highlighted. We will type 2.0 and press enter.
03:17
This adds two inches. Our G 54 Z value change
03:22
from zero to positive two inches.
03:25
Now,
03:26
we don't want to forget that we've made a change like
03:28
this to an offset that we need to take out later.
03:31
So I'm gonna leave myself a note.
03:33
Now, in between cutting moves, our machine is gonna move as fast as it can.
03:38
That's called a rapid move.
03:41
And when it's going that fast at 100% rapid, we can't stop things.
03:45
So we're going to lower our rapids to 5% rapid, slowing things down,
03:51
giving us enough time to react if we have to.
03:54
I know this seems like a lot to learn.
03:56
But trust me, it's just gonna get easier and easier with practice.
03:59
Now, when we press the cycle start button,
04:02
it's gonna start. If we press feed, hold,
04:04
it's gonna pause the program
04:07
and if something went terribly wrong. We could press the emergency stop button
04:11
and you should get comfortable with this button.
04:13
Go ahead and slam that, that E stop button.
04:17
Get used to it. It's easy to reset, just twist it,
04:21
press reset
04:22
and we're back in business. So we are ready to run this program.
04:26
So I go start.
04:30
The control is doing a tool change to T seven just like our setup sheet said it would.
04:35
Now the tool is moving above our part and the coolant has turned on.
04:39
Now, let's press feed,
04:40
hold here and turn off our coolant by pressing the coolant key.
04:44
So we can see better. Our program is still running,
04:47
just pause with feed hold. Now we are in no hurry. We can take our time.
04:51
Now, this is a good time to put the machine into single block mode.
04:55
When in single block mode,
04:57
the control is going to execute one line of code at
04:59
a time with each push of the cycle start button.
05:02
This just gives us more time to react.
05:05
And at this point, we really want to see where our tools are positioned.
05:09
So we're going to go to the position screen
05:11
by pressing the position button once on newer NGC controls.
05:16
If we had an older classic control, we might push the button
05:19
several times to move us up and over to the distance to go column.
05:25
We're going to press cycle, start again and watch this tool come in above the part,
05:35
this would put us about one half inch above our part.
05:38
If we hadn't also added two inches to our G 54 Z work offset value
05:44
safely dry running our program well above our part,
05:48
our distance to go shows Z minus 0.4592 inches.
05:54
And this is exactly how far our tool is gonna move
05:57
when we press the cycle start button in single block mode.
06:01
Now, this looks reasonable.
06:03
If our distance to go value was some large negative value like Z minus 10 inches,
06:08
we would need to stop and recheck all of our offsets.
06:12
If our tool were to try and move 10 inches, it would crash into our part or our vice.
06:19
Our distance to go is reasonable. So we will press cycle start.
06:23
We can always change our position screen to program instead of distance to go.
06:28
And this will show us our position in regards to our current work coordinate
06:33
system G 54 which will match the values in our G code program.
06:38
We have done our checks. And so we'll turn off single block
06:43
and let our tool run
06:52
before our next tool reaches our part.
06:54
We will press feed, hold and again,
06:56
check to see if our distance to go number looks reasonable.
06:59
Our dry run is complete.
07:02
We just have to remove that
07:04
two inch adjustment from our work offset
07:06
and get ready to run this part for real.
Video transcript
00:00
Dry run AC NC program. After completing this video, you will be able to
00:05
run a programming graphics,
00:07
identify distance to go on screen
00:10
and adjust the speed of rapid movements
00:13
with our tool and work offsets all set in our program loaded.
00:17
It's time for us to dry run our part.
00:20
We're gonna go ahead and run this program in
00:22
graphics first and then we're gonna run it a
00:25
couple inches above the part just to make sure
00:28
that everything is where we expect it to be
00:31
before we cut actual metal. This is a machinist equivalent of measure twice cut.
00:36
Once
00:37
we will start by running our part in graphics mode
00:40
on a newer NGC control.
00:42
We press the graphics button once on classic controls,
00:46
we would press the setting graph key twice.
00:49
Now, this is important before we press that green button.
00:53
We need to really make sure that we are indeed in graphics mode.
00:57
Otherwise the machine is gonna move for real
01:01
and
01:01
we are in graphics mode, we see the large white screen that's visible and it says
01:06
graphics
01:07
just in case we might want to keep our finger near the feed hold button
01:10
to stop things if it were to move.
01:13
We're good. So we'll press the green button.
01:19
Now, if you got
01:21
an alarm,
01:22
let's say A Z over travel alarm,
01:25
then we've done something wrong with our set up and it's time for us
01:28
to go back and watch that tool and work off that video again.
01:32
Maybe there's something wrong with our G 54 our W CS one
01:37
set up.
01:38
Now, our program ran without alarms. We did everything right.
01:43
But I don't like the way it's centered up in our screen.
01:45
We can fix this, we can zoom and center to make things more clear.
01:50
We'll follow the on screen instructions. F two enable zoom.
01:55
We can press the page up or page down button,
01:59
use the arrow keys to move things around
02:04
and press enter to lock in our, our frame
02:09
things look good. If we were to run graphics again at this moment,
02:15
we could see exactly where our tool starts and finishes.
02:18
We want to make sure that everything matches what we
02:20
saw on our fusion 360 screen and it does,
02:23
it looks great.
02:25
And if things were flying by too fast, we can slow things down.
02:29
Using the F three key F three is slower. F four is faster.
02:34
Well, everything looks great in graphics.
02:36
So I think it's time for us to dry, run our part above our real stock.
02:40
Now, this might be the very first part you've ever run.
02:44
So we wanna be extra careful.
02:46
We're gonna run things a couple inches above our material here just to
02:51
give us time to stop in case we've done something incorrectly here.
02:55
And we could accomplish this in a couple of different ways.
02:57
We could move our tool offsets or we could move our work offset.
03:01
Tool offsets affect only one tool at a time though, while a work offset
03:07
affects all of our tools at once. So that's what we're gonna change
03:11
with our G 54 Z work offset highlighted. We will type 2.0 and press enter.
03:17
This adds two inches. Our G 54 Z value change
03:22
from zero to positive two inches.
03:25
Now,
03:26
we don't want to forget that we've made a change like
03:28
this to an offset that we need to take out later.
03:31
So I'm gonna leave myself a note.
03:33
Now, in between cutting moves, our machine is gonna move as fast as it can.
03:38
That's called a rapid move.
03:41
And when it's going that fast at 100% rapid, we can't stop things.
03:45
So we're going to lower our rapids to 5% rapid, slowing things down,
03:51
giving us enough time to react if we have to.
03:54
I know this seems like a lot to learn.
03:56
But trust me, it's just gonna get easier and easier with practice.
03:59
Now, when we press the cycle start button,
04:02
it's gonna start. If we press feed, hold,
04:04
it's gonna pause the program
04:07
and if something went terribly wrong. We could press the emergency stop button
04:11
and you should get comfortable with this button.
04:13
Go ahead and slam that, that E stop button.
04:17
Get used to it. It's easy to reset, just twist it,
04:21
press reset
04:22
and we're back in business. So we are ready to run this program.
04:26
So I go start.
04:30
The control is doing a tool change to T seven just like our setup sheet said it would.
04:35
Now the tool is moving above our part and the coolant has turned on.
04:39
Now, let's press feed,
04:40
hold here and turn off our coolant by pressing the coolant key.
04:44
So we can see better. Our program is still running,
04:47
just pause with feed hold. Now we are in no hurry. We can take our time.
04:51
Now, this is a good time to put the machine into single block mode.
04:55
When in single block mode,
04:57
the control is going to execute one line of code at
04:59
a time with each push of the cycle start button.
05:02
This just gives us more time to react.
05:05
And at this point, we really want to see where our tools are positioned.
05:09
So we're going to go to the position screen
05:11
by pressing the position button once on newer NGC controls.
05:16
If we had an older classic control, we might push the button
05:19
several times to move us up and over to the distance to go column.
05:25
We're going to press cycle, start again and watch this tool come in above the part,
05:35
this would put us about one half inch above our part.
05:38
If we hadn't also added two inches to our G 54 Z work offset value
05:44
safely dry running our program well above our part,
05:48
our distance to go shows Z minus 0.4592 inches.
05:54
And this is exactly how far our tool is gonna move
05:57
when we press the cycle start button in single block mode.
06:01
Now, this looks reasonable.
06:03
If our distance to go value was some large negative value like Z minus 10 inches,
06:08
we would need to stop and recheck all of our offsets.
06:12
If our tool were to try and move 10 inches, it would crash into our part or our vice.
06:19
Our distance to go is reasonable. So we will press cycle start.
06:23
We can always change our position screen to program instead of distance to go.
06:28
And this will show us our position in regards to our current work coordinate
06:33
system G 54 which will match the values in our G code program.
06:38
We have done our checks. And so we'll turn off single block
06:43
and let our tool run
06:52
before our next tool reaches our part.
06:54
We will press feed, hold and again,
06:56
check to see if our distance to go number looks reasonable.
06:59
Our dry run is complete.
07:02
We just have to remove that
07:04
two inch adjustment from our work offset
07:06
and get ready to run this part for real.
After completing this video, you'll be able to:
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