Arc/Filter Tolerance for a simple 2D path.

[danielm]

Is it just me or is the functionality of this just not as effective at smoothing out splines as it used to be.  I know that I used to be able to just open up the tolerance and it would fit nice pretty arcs that kept my file size down.  Now its seems impossible.  Is anyone else having the same problems.  BTW...trim-break-many isnt working for this case.

 

Thanks for any help..

DM

[mirek1017]

[danielm]

Thanks for that Master...but I still get thousands of lines.  no arcs in the G17 plane 

 

[mirek1017]

what toolpath you use ???

[danielm]

2D contour.  Its a very simple spline.

[danielm]

Actually its not that simple

 

[danielm]

Heres a sample of it.

LETTER S.mcam

[huskermcdoogle]

Try these settings.  Should be significantly better than what you were describing.  Sometimes it is not about opening it up, but rather tightening them and give it more specific parameters to go after.  The key to this was lowering the minimum arc radius and giving line/arc most of the tolerance, then tighten line filter tolerance so that it prefers arcs.  The last part doesn't have any effect really, but could in certain situations.

 

 

[Jayson Kramer]

Here is file with path and filter and NCcode that is 98% or more arcs based on the shape.

Letter S.zip

[crazy^millman]

Here is what I got for code.

%
O0000(LETTER S-2)
(DATE=DD-MM-YY - 06-06-18 TIME=HH:MM - 12:05)
(MCX FILE - C:\USERS\RON\DOCUMENTS\MY MCAM2018\PARTS\LETTER S.MCAM)
(NC FILE - C:\USERS\RON\DOCUMENTS\MY MCAM2018\MILL\NC\LETTER S-2.NC)
(MATERIAL - ALUMINUM INCH - 2024)
( T282 | 1/8 FLAT ENDMILL | H282 )
N100 G20
N110 G0 G17 G40 G49 G80 G90
N120 T282 M6
N130 G0 G90 G54 X.4494 Y-.2753 A0. S4278 M3
N140 G43 H282 Z.25
N150 Z.2
N160 G1 Z0. F6.16
N170 X.3251 Y-.2623
N180 G3 X.312 Y-.2616 I-.0131 J-.1243
N190 X.1877 Y-.3736 I0. J-.125
N200 G2 X.0923 Y-.6378 I-.4424 J.0104
N210 X-.0273 Y-.6927 I-.1196 J.1029
N220 X-.1591 Y-.6215 I0. J.1578
N230 G1 X-.1723 Y-.7478
N240 G2 X-.2383 Y-.8036 I-.066 J.0111
N250 X-.283 Y-.7866 I0. J.0669
N260 X-.4273 Y-.5564 I.1899 J.2794
N270 X-.4426 Y-.3916 I.8788 J.1648
N280 X-.4093 Y-.1495 I.8941 J0.
N290 X-.2516 Y.0198 I.2495 J-.0742
N300 X-.2138 Y.0243 I.0378 J-.1553
N310 X-.0702 Y-.0653 I0. J-.1598
N320 G1 X-.0606 Y.0208
N330 G2 X.004 Y.0774 I.0646 J-.0086
N340 X.0426 Y.0647 I0. J-.0652
N350 X.1771 Y-.1353 I-.1357 J-.2364
N360 X.1907 Y-.2977 I-.9642 J-.1624
N370 X.1877 Y-.3736 I-.9778 J0.
N380 G3 X.1873 Y-.3833 I.1246 J-.0097
N390 X.3026 Y-.5079 I.125 J0.
N400 G1 X.4272 Y-.5177
N410 Z.2
N420 G0 Z.25
N430 M5
N440 G91 G28 Z0.
N450 G28 X0. Y0. A0.
N460 M30