FreeCad cartesian coordinates

[Geraldhemel2]

No that file was just a example.
The lenses are normally not rotation symmetric.
If I had money to spend, I didn't try to do this by myself.

Could you look at this problem I have?:

The jump from z0.0000 tot Z2.499954 isnt good, and the last jump from x0.087502 to 2.4975 is also a big problem.
I like the CNC to go easy from C0X0Z0Y0 until the end.
What could this be?

[shoogen]

Could you look at this problem I have?:
The jump from z0.0000 tot Z2.499954 isnt good, and the last jump from x0.087502 to 2.4975 is also a big problem.

That is nearly impossible. The script contains an if-clause. if the distance between the surface and the "ray" along z is greater that the threshold (0.1µm) the whole point is skipped.
You could increase the threshold, which might lead to a coarser output.
You could reenable the debug output in the else-clause (below "pass"). This will output the distance calculated an further details on the geometry involved.
But can't do anything without geometry data.

[Geraldhemel2]

Thank you,

I allready understand somethings from your code.
Can you tell me how I can increase the distance? From 0.7mm Xax, till something larger?
The Zax doesnt give me numbers, only 0.0000
Can you tell me what I'm doing wrong?

[shoogen]

Can you tell me how I can increase the distance? From 0.7mm Xax, till something larger?

There was a mistake. The maximal value is given by the rmax paramter. And it should have been set to the rmax definded by the boundding box of the selected shape. https://gist.github.com/5263/1e9c326657 ... /revisions

The Zax doesnt give me numbers, only 0.0000
Can you tell me what I'm doing wrong?

No, I'm afraid. I can't.

But can't do anything without geometry data.

[Geraldhemel2]

At the moment I have renamed the :

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if dist < 10:
        maxz = 10 # max([p1.z for p1,p2 in pts])
        return (r,phi,maxz)

Now I have 20mm size products.
The moment I have found how to get an X, I also will post it here.
Shoogen, many thanks, if you remember a way to get the Zax also functional, please let me know.

[shoogen]

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if dist < 10:
        maxz = 10 # max([p1.z for p1,p2 in pts])
        return (r,phi,maxz)

dist < 10 allows a deviation of 10 mm between the calculated point and the surface. I repeat 10mm. 10000µm. 40% of the workpiece diameter (in the file you posted)
And this is not meant in Z direction. The purpose was to detect when the "z-ray" does not intersect. and distance has components in X and Y.
if you don't use the z component of p1 (orp2) and replace it the constant z=10 the whole script becomes pointless.
Five lines of manual G-Code should allow you to perform a planar facing operation.

if you remember a way to get the Zax also functional, please let me know.

I don't understand the problem.

[Geraldhemel2]

When I change the

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if dist < 1:

Then the program does the full CNC size, until X12.
If I dont change this parameter the CNC code only goes untill X0.7

The Zax is always zero. I would like to know the Zax , thats the point of this program.
this is an example of the CNC code that the program generates :

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C43353.966793X12.042769Z1.390658Y0.0000
C43362.644529X12.045179Z1.390658Y0.0000
C43371.322264X12.047590Z1.390658Y0.0000
C43380.000000X12.050000Z1.390658Y0.0000

I appreciate your effort and input

[shoogen]

Do you mean the Y-Axis?
https://gist.github.com/5263/1e9c326657 ... ing-py-L48

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print 'C%1.6fX%1.6fZ%1.6fY%1.4f' % (math.degrees(phi),r,z,0)

The tuple contains the values. The 0 is for the Y-Axis. r is for X and z is Z.

In your example Z is 1.390658.

[Geraldhemel2]

But the Z is also non variable, the value stays the same.

[Geraldhemel2]

Do you mean the Y-Axis?
https://gist.github.com/5263/1e9c326657 ... ing-py-L48

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print 'C%1.6fX%1.6fZ%1.6fY%1.4f' % (math.degrees(phi),r,z,0)

The tuple contains the values. The 0 is for the Y-Axis. r is for X and z is Z.

In your example Z is 1.390658.

Yes I , you are right. But the value stays 1.390658 for the last 500 lines. The first 6866 lines it is 0.0000.

This is my output file :

https://dl.dropboxusercontent.com/u/861 ... ogen12.txt