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Hi, I 'm Daniel Hetke of Duwe-3d.
Today, I'd like to show you how to use PolyWorks®
with coordinate measuring machines.
I've prepared a coordinate measuring machine
that's connected to PolyWorks via the protocol MZ 1060.
Alternatively, I could also choose other protocols, such as I++.
You can now see that the connection is working, by the live changes in the coordinates counter
shown in the top right corner of the screen,
which gives me the real-time position of the probe.
Now I'd now like to show you a simple inspection with this measuring system.
I prepared a component and loaded it into a PolyWorks
project as a CAD model. To analyze this component,
the first step required is a reference-point alignment.
Reference points are usually used on free-form surfaces,
which is suitable for this part.
First I'll need to define the reference points in PolyWorks
to probe them later. To do this, I go into the
Align menu, I select Reference Points,
and then I define my reference points on the CAD model.
These reference points
are created as follows: I need three surface points which determine
the z-direction, that is the height
Further, the center of this circle minimizes the displacement in the x -and y- direction.
And the center of this slot,
minimizes the distortion. The reference points
are placed on the CAD model,
three surface points, then on the center of the circle,
which I use to determine the x -and y- direction.
This center is derived directly from the CAD model.
Next, is the slot, and even this I can extract from the CAD model.
Then all of the reference points appear in the 3D Scene.
And I can also see them in the Tree View.
I now select the reference points, and click Align by Probing in the menu
automatically the probing mode starts and the software gives me instructions
to probe the actual position of this point.
For the probing, I refer entirely on the set positions that are on the CAD model
and try to take the position.
These were the three points in the z-direction.
Then I have to probe the circle.
A constraining plane is always needed for the circle.
That was the constraining plane, and now for the circle.
Finally, it's time for the alignment of the slot: The slot
also requires a degree of work because each arc
is measured with three points.
If the features are probed, the alignment is done automatically
and I can now compare it directly to the CAD model.
Again, PolyWorks offers a specific function that automatically
calls the probing mode.
And compares each sampled point with CAD model.
You will see these points in the 3D Scene. A color scale
on the right hand side illustrates the deviation of those points.
And here you can see by the basis of deviation that the alignment has
been properly carried out.
Finally, I can now measure all the geometric features that I need.
For example, I had previously omitted this circle from the measurement.
I will do it now. I go into Features and
in Create Circle Features, I
change the Creation method to Probe.
The Probing mode starts automatically.
As usual, I have to define the constraining plane of the circle.
And then the circle itself.
Now I 'm ready to finish my analysis. One feature is still missing.
The circle has only a measured value because the corresponding nominal value is still missing.
I can extract the nominal value from the CAD model.
I right-click, and
select "Extract nominal".
The closest nominal circle is now extracted from the CAD model,
and I can see the deviations between the nominal and the measured values.
Finally, I can summarize my results in a report.
The layout for this formatted report can be freely selected.
After the report is generated, I can easily export it as a PDF file.
Good bye, until next time!