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Put simply - Advanced 3+2 programming function that enables a feature based coordinate system shift through multiple table rotations.
Comparable functions;
- Heidenhain CYCLE19 / PLANE SPATIAL
- Siemens CYCLE800
It is always best to program using I,J,K
R: Used, if desired, in place of I,J,K. R is programmed simply as the distance between the arc center and any point along the path.
· R is a positive value if the arc swings through LESS THAN 180°
· R is a negative value if the arc swings through MORE THAN 180°, but LESS THAN 360°
· If the arc swings through EXACTLY 180° or EXACTLY 360°, R cannot be programmed, Instead use I,J,K
I,J,K : Signed (+ or -), incremental distance measured from the start point of the arc to the arc center.
· I,J,and K values are measured along X,Y, and Z axes respectively
· I,J, and K values are always incremental, without regard to G90 or G91
· If I,J, or K values are found to be zero, the programmer may omit that I, J, or K word.
Just a heads up..
3d Coordinate conversion (G68) is an option not to be confused with Coordinate Rotation (G68) in the same class.
If you do not have this option you cannot specify the axis rotations (I,J,K).
True 5-axis coordinate conversion is done using (G68.2/G53) TWP, allowing kinematic error to be accounted for.
Mic ,
You are correct. G54.2 doesn't compensate for the "Stacking error" so to speak. The new function G54.4 has now replaced this function.
You are also correct on the "Dynamic" functions for Fanuc controls.
TCPC = 5-axis transformation
TWP = 3+2-axis transformation
We program these functions with G-code relative to the part "WCS" rather than the "MCS".
hsm400,
We sell our 5-axis Matsuura's with a set package. This includes 5-axis transformation functions and CAMplete TruePath software for both platforms.
It's one thing to have the functionality, and it's another thing to get good g-code to support it.
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