B Axis Problems (again)

[Larry Metzler]

When machining off the tombstone, if I choose different a wcs my program will out put

correctly ( B90 B30 ect.), however when attempting to use a continuous 4th axis tool path

(5th axis curve, projection, Tilt Curve) the post will not output a B axis rotation. When verifying the tool will move in an arc around the axis and the work piece remains fixed. Looking at the output code,

 

(start)

G20

G0 G17 G40 G49 G80 G90

N1 T1

M6

G53 Z0

M11

B0.

M10

G0 G90 G54.1 P1 X-1.6586 Y-3.8425 S2139 M3

G05.1 Q1

G43 H1 Z2.333 M08

Y.6575 M8

Z1.933

G1 Z1.533 F1.03

X-1.5833 Z1.5325

X-1.5081 Z1.5308

X-1.4328 Z1.5279

X-1.3576 Z1.524

X-1.2825 Z1.5189

 

(end)

 

X2.7609 Z-1.1285

X3.1144 Z-.9414

G0 X3.468 Z-.7543

Y-3.8425

M5

G53 Z0. M9

G53 X0. Y0.

G05.1 Q0

M30

 

 

There is no rotation of the B axis output in the code.I am a little confused as to where to even start looking to correct this problem.Also why would the verify screen show rotation of the tool around the axis of rotation rather than the rotation of thework piece.

Any help is very greatly apprecated, Thanks to all.

 

Kitamura H300if

Fanuc 16im

[crazy^millman]

Do not use WCS use C-planes and see if that solves your problem. Do not use WCS use only one WCS and then use C-planes.

 

HTH

[Larry Metzler]

Millman, thanks for the quick reply. My WCS is always set to top. The Construction and and the Tooling Planes are what I change for different faces Sorry for the wrong terms in the first post.

 

Larry

[crazy^millman]

Got a sample file you can share??? Kind of guessing here and be better if you had a sample.