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Speaker 1
Hey, hey, welcome back to another training video here in Conversational Camp Pro. My name is Chris. And today we’re going to be focusing on another basic tool path.
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Speaker 2
this is going to be the indexing mortis tool path.
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Speaker 1
And just like all the other basic videos on Tool Pass, we’re going to answer two questions.
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Speaker 1
What is this tool path. And what does the cutter due to the part. And two how do we control it. How do we program it. So we’ll help visualize this using the aspire software as well as showing the cutting taking place towards the end of this video.
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Speaker 1
So let’s jump on over to our aspire software. We can get started now. In the previous two processes that we’ve covered, we’ve covered the.
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Speaker 2
Multi-Sided surfacing.
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Speaker 1
And multi-sided cut. Both of.
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Speaker 2
Those,
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Speaker 1
Machined flat.
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Speaker 2
Surfaces.
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Speaker 1
On our material.
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Speaker 2
In this case.
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Speaker 1
We can machine.
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Speaker 2
A square section here has a cross.
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Speaker 1
Section view. And that’s exactly what we’ve.
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Speaker 2
Done here to set this up from.
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Speaker 1
Here on out, a majority of this tool paths that are focusing on indexing are going to be applying to a pass to a.
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Speaker 2
Multi-Sided, flat surface of some.
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Speaker 1
Kind. And so here we’ve already taken this blank. Yeah. And we’ve actually machined it square over the late. So we’ve left the end here untouched is the first inch and a half not machined at all, but we’ve machined now 18in long, square. That is this size, which is 2.5in square. Okay. And we use the.
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Speaker 2
Multi-Sided surfacing.
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Speaker 1
With.
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Speaker 2
The surfacing.
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Speaker 1
Cutter to.
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Speaker 2
Do that.
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Speaker 1
So this is in preparation for all the tools that we’re going to be adding to this surface. And the first one that we’re going to be focusing on in this video is the mortise. So many times this application is being used to apply joinery. For example, this could be a table leg and the top.
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Speaker 1
Let’s say in this case 3.5in. I want to apply a mortise pocket up here so that the skirt or edging of our table can be joined directly to our table leg. If I want to have a really secure joint. So mortise and tenon is a really strong way of doing that. So we’re going to use this tool path to create this process.
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Speaker 1
Now, what this is going to do is we’re going to take a just say, a straight or a spiral cutter.
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Speaker 2
This is a side.
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Speaker 1
View of a quarter inch cutter that we’re going to be using throughout this cutting demonstration, and it’s going to come over to a starting position. It’s going to plunge into the material at a specific depth. It’s going to cut down and back removing all the material in the center of this mortise shape and the mortise shapes that we have access to here in Cam Pro are going to be a four sided square or rectangle shape of any length or width.
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Speaker 1
and even additional, controls that we’ll get into in other videos today we’re going to be focusing on creating this shape itself. This is a two inch long mortise that is 3/8 of an inch wide. And we’re going to pocket it down whatever depth that we choose at the time.
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Speaker 1
Okay. Now this is a top view. So it’s hard to simulate this. If you actually had a quarter inch cutter, which would be a circle like this from a top view. This would be the quarter inch cutter rotating. And we can see that it’s going to come and machine all of that material away on the inside of that pocket.
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Speaker 1
Okay. So that’s all that’s going to take place at a specific depth of our choice. Now if you look at the cross end view.
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Speaker 2
You can see here that this mortise is off center.
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Speaker 1
And that’s usually the case a majority of the time most mortises are are situated in that type of position. Doesn’t have to be it could be the dead center of our spindle, but we need to take that into consideration when placing this on our flat surface. Using Cam Pro. Okay.
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Speaker 2
All right. So let’s go to see.
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Speaker 1
Cam Pro and actually toolpath this. And we’re going to open up our projects and our.
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Speaker 2
Turning samples that we’ve been using so far.
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Speaker 1
And here in the turning workstation we have our.
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Speaker 2
Multi-Sided sample.
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Speaker 1
Okay.
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Speaker 2
Now again this has.
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Speaker 1
Already been programed to machine at square.
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Speaker 2
That’s what this did previously.
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Speaker 1
For the part. We’re now going to focus on just adding.
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Speaker 2
The mortise to that.
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Speaker 1
Two and a half diameter section.
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Speaker 1
we can go to indexing. And we’re going to go to mortises. We’ll add that to our toolpath list okay. So let’s go see what we need to program this. So the first thing just like every other toolpath is we need to select a cutter.
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Speaker 1
So the tool that we’re going to be using that I was just demonstrating is the quarter inch cutter. Now this could be a straight cutter. It could be an up cutter a down cutter compression. There’s a couple of types of cutters that you can use. If you don’t want to tear out on the upper edge. So for example.
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Speaker 1
Here on the cross section, if you don’t want to tear out on this upper edge, the up spiral will.
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Speaker 2
Cause.
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Speaker 1
You know, a little feathering of the grain to come up on those edges. If you don’t want that that to happen, you can use a down spiral. Now, a down spiral is going to generate a little bit more heat, but because there’s plenty of space around the cutter, it’s just going to throw the chips behind it. And so you could use a down spiral in this scenario just fine.
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Speaker 1
It will jam the bottom section of the pocket with dust that you’ll have to vacuum or blow out.
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Speaker 2
And so there’s, there’s a couple of pros and cons based on the cutter that you’re going to use.
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Speaker 1
The one I’m using here in the cutting demonstration is a down spiral cutter
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Speaker 1
So if we come over here and go to our end mill down cut and a quarter inch, three cutter, three quarter inch cut length and we’ll select that tool. And this will be tool number two.
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Speaker 1
Okay. Let’s go.
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Speaker 2
To the next.
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Speaker 1
Parameter that we need to fill out.
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Speaker 2
And that is.
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Speaker 1
We need to enter our eight.
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Speaker 2
Axis degrees. Now what this is referring to is the stock here has just.
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Speaker 1
Been milled square. Okay. So,
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Speaker 2
This face is sticking straight up.
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Speaker 1
And it’s parallel with the cutter face. Right now.
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Speaker 2
And if we say zero.
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Speaker 1
Degrees, it will place.
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Speaker 2
The mortise on what is.
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Speaker 1
Facing the cutter right now. If I had a.
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Speaker 2
Mortise, let’s.
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Speaker 1
Say, rotated like.
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Speaker 2
This and it was down here somewhere.
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Speaker 1
Okay. Over here, I would need to rotate this, okay, a certain number of degrees.
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Speaker 2
So that this face becomes parallel with.
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Speaker 1
The cutter.
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Speaker 2
Okay. So I can get access to that mortise. And so that’s.
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Speaker 1
Talking about the degrees. Well, we will cover that in different scenarios. I just want to make sure it’s clear on what this was referring to on that question. So this one is zero degrees for this face that we’re currently going to be working on.
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Speaker 2
So we can come here.
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Speaker 1
And put axis.
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Speaker 2
As zero.
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Speaker 1
And then what is the diameter section that this mortise is being applied to. And so that is the square section that we have now.
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Speaker 2
Machined this.
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Speaker 1
To. So if we measure this a vertical dimension that is.
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Speaker 2
A section.
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Speaker 1
Diameter of 2.5in. So we can put that here in section diameter 2.5.
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Speaker 2
Now this is where.
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Speaker 1
We need to apply the.
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Speaker 2
Size of the.
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Speaker 1
Pocket in the.
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Speaker 2
Mortise itself we have an x and y start.
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Speaker 1
Position and an x and y end.
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Speaker 2
Position.
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Speaker 1
So let’s go grab.
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Speaker 2
Those parameters.
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Speaker 1
From our drawing okay. Looking over here okay. Now we have to make sure we’re grabbing the dimensions from the right location. So we’re going to add some dimensions. And let’s do the x axis. First I’m going to do a horizontal dimension from x zero, which is the far left edge of my part to the far left edge of the mortise.
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Speaker 1
Okay, that’s my starting point for the x axis. And again from x zero to the far right side. That is my ending point okay. So the x ending position. So that’s two there. Now we need to find a y axis starting in any position. So we’re going to use a vertical dimension. And it is critical that you measure from the middle of the material okay.
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Speaker 1
And there’s lots of different ways my mouse is automatically snapping to the middle sections of the drawing. So I know that it’s in the right location. But if we measure from that middle of the spindle, that’s where y zero is in the turning center. And make sure we’re going to the center of our mortise.
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Speaker 2
And that will give us a height.
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Speaker 1
Or you could say in this case a y axis parameter. Okay.
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Speaker 2
Think of this as a top.
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Speaker 1
View looking down. And so this is the x and the x. And this is the y which is off center. If the y is centered in our blank that means this is a negative parameter. This is negative.
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Speaker 2
0.62.
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Speaker 1
Five in order to position that mortise in the right location.
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Speaker 1
So in this scenario.
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Speaker 2
This mortise has the same.
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Speaker 1
Y parameters.
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Speaker 2
For the y start and ending.
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Speaker 1
Position of negative.
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Speaker 2
0.62.
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Speaker 1
Five okay. So we have two and a quarter four and a quarter and 5/8 in the negative y axis. So let’s go put those in.
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Speaker 2
So we have our x start position.
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Speaker 1
Which is two and a quarter. And we have our.
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Speaker 2
X.
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Speaker 1
End position which is four and a quarter okay. Now we’re going to put our y axis start which is -0.625. And we’re.
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Speaker 2
Also going.
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Speaker 1
To be putting that in the y axis of -0.
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Speaker 2
.625.
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Speaker 1
Okay. Now we’re going to put in the parameters of.
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Speaker 2
The size.
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Speaker 1
Of the mortise. Now that we’ve located where.
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Speaker 2
The mortise is let’s determine.
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Speaker 1
The width.
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Speaker 2
So this one if.
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Speaker 1
We go measure this, the width.
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Speaker 2
Of this mortise that.
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Speaker 1
I drew.
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Speaker 2
Is 0.3.
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Speaker 1
Seven five. And that is 3/8 of an inch. So let’s go put that here. And I’m mortise width 0.375. And then our cut depth. How deep do we want to cut this mortise. For this demonstration I’m just going to cut three quarters of an inch deep. So 0.75in. And the rest of this is all defaulted. And so now we can.
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Speaker 2
Press.
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Speaker 1
Finish and save. And that is now ready to generate our G-code. So let’s uncheck the multi-sided surface. Since we’ve already cut that on the machine. And we’re just applying.
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Speaker 2
The mortise.
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Speaker 1
To.
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Speaker 2
The surface. So now let’s.
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Speaker 1
Come down here and generate our gcode.
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Speaker 2
And we can save.
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Speaker 1
Out our file.
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Speaker 1
Under our.
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Speaker 2
Toolpath.
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Speaker 1
We have our.
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Speaker 2
Index mortise.
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Speaker 1
And here we are going to.
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Speaker 2
Call this indexing mortise.
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Speaker 1
G-code.
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Speaker 2
And save.
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Speaker 1
That. And now let’s go to the machine and watch this take place.
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Unknown
You need.
00:13:39:24 – 00:13:44:21
Speaker 1
Pro. You now have a good understanding of how to use this tool path. Go give it a try.