Z MOVE WITH G03/G02 LINE

[Mark Graham]

My posted code some times has a slight Z level change in a line with a G03 or G02 in it (while in G17 plane).Its usually only a .0001 or so.But it causes a serious problem.It even shows up on a 2-d contour path some times.I'm not sure where this is coming from.I've changed tol.s in the paths & system to no avail.Anybody else seen this.

[K2csq7]

Can you confirm your geo is 100% flat & parallel with the X,Y plane.

Sometimes when I'm flyin thru stufff I accidentally push in the mouse wheel which dynamically changes the G-View (only a very small amount so I miss it sometimes).

This would only affect you if you have the checkbox in your config set to "Update t & C plane when changing G-view.

[CJep]

Something to check in the tolerance settings: is the Line/Arc filtering set it to create arcs in the XY/XZ/YZ planes. If you're getting G02/G03 moves associated with Z make certain to turn off XZ/YZ

[Mark Graham]

thanks for the help Guys.Here's what I have.I am using 3-D contour on this particular path to rough a ramped ribtop so the the geo. is a 3-D line.I have my arc filter turned off which greys out the xy/xz/yz option (which is set to XY)I do have the "Update t & C plane when changing G-view" option turned on.Everthing is set to top plane. I have depths option on & it doesn't show up until the 2nd pass???

Here's the code

N6 T5 M6

N7 G0 G90 G54 X-8.8737 Y-3.2157 S10000 M3

N8 M10

N9 M12

N10 G143 H5 Z15.4575 M8

N11 Z15.0575

N12 G1 Z14.8202 F150.

N13 X-8.3907 Y-3.3452 Z14.7702

N14 G3 X-8.3736 Y-3.3483 I.0259 J.0966

N15 G1 X-3.5438 Y-3.7719 Z16.379

N16 Z16.479 F200.

N17 G0 X-8.8737 Y-3.2157

N18 Z14.8702

N19 G1 Z14.6328 F150.

N20 X-8.3907 Y-3.3452 Z14.5828

N21 G3 X-8.3736 Y-3.3483 Z14.5829 I.0259 J.0966

N22 G1 X-3.5438 Y-3.7719 Z16.1917

N23 Z16.2917 F200.

N24 G0 X-8.8737 Y-3.2157

N25 Z14.6828

N26 G1 Z14.4455 F150.

N27 X-8.3907 Y-3.3452 Z14.3955

N28 G3 X-8.3736 Y-3.3483 I.0259 J.0966

N29 G1 X-3.5438 Y-3.7719 Z16.0044

 

It is a 5 axis program but this is a 3 axis path.hence the G143 & the extreme "Z"s.I have the g17,g18 & g19 options active in my control def.

If you can think of anything else let me know.This is not a consistant issue.It just pops up occasionally'

Thanks,Mark

[Mark Graham]

The culprit was using arc in/arc out on the aproach.Got rid of the arc,got rid of the Z move,

Thanks Keith & CJ for your help.