Why rapid in 4axis?

[flippinjig]

Hi guys,

 

Why do I get a rapid move in the line before compensation is turned off in 4axis taper?

 

Last lines of program (with fastmode set to zero):

-------------------------------------------------

X-1.17999 Y.18502 U-.01892 V-.00141 pedm prapid

X-1.18431 Y.15499 U-.01858 V.00025 pedm prapid

G0 X-1.18787 Y.12485 U-.01835 V.00193 pedm prapid

G40 X-.9 Y.1 U0. V0. pedm prapid

M50 pedm p__51:1125

M30 peof

% peof

-------------------------------------------------

 

last few lines of NCI code:

-------------------------------------------------

 

11

0 -1.184311 0.154986 -0. -1.202893 0.155238 2.125 0. 0

11

0 -1.187866 0.12485 -0. -1.206219 0.126778 2.125 0. 300

11

140 -0.9 0.1 -0. -0.9 0.1 2.125 0. 20000

1004

 

1003

-0.9 0.1 0.

-------------------------------------------------

 

pedm code:

-------------------------------------------------

pedm #4 Axis Taper

pcntr

if cntrflag = one, g20code = one

else, g20code = zero

g30code = g20code

prapid

 

-------------------------------------------------

 

I hope this helps someone to point me in the right direction.

 

Thad's rule:

ver 8.1.1 wire

fanuc 16W wire post

[Guest]

mark, i don't know much about post but will this help.

 

pedm #4 Axis Taper

pcntr #Set control flags

if cntrflag = one, g20code = one

else,

[

if rapid_off = yes, # Force lead-off moves to be 'G0' rapid motions

g20code = zero

]

g30code = g20code prapidplinxy4 #Linear XY component - 4 axis direct and taper

# if RAPID_OFF = YES, Force linear lead-off moves to be 'G0' motions

if (rapid_off = yes & prv_cend = three)

& (g20code< two & g30code < two), g20code$ = zero

sg20code, pxout, pyout, pzout

!g30code

 

[ 08-24-2006, 09:42 AM: Message edited by: del ]

[flippinjig]

I got it to work by putting # in front of these lines:

 

 

code:

-------------------------------------------------

if cntrflag = one, g20code = one

else, g20code = zero

g30code = g20code

 

(I don't understand what these lines do but it didn't change anything other than removing the G0.)

-------------------------------------------------

 

 

 

 

code

-------------------------------------------------

 

cntrflag : 0 #Contour flag, 0 = before, 1 = contour, 2 = after

#3 = single move case.

 

(I tried changing to 1, 2 or 3 but it didn't make any difference.)

-------------------------------------------------

 

NCI code:

-------------------------------------------------

11

0 -1.192674 0.064355 -0. -1.210884 0.069664 2.125 0. 0

11

0 -1.190654 0.094633 -0. -1.208883 0.098248 2.125 0. 0

11

0 -1.187866 0.12485 -0. -1.206219 0.126778 2.125 0. 300

11

140 -0.9 0.1 -0. -0.9 0.1 2.125 0. 20000

1004

 

1003

-0.9 0.1 0.

 

 

I think it has something to do with ".300" which is a rapid feedrate but where does that come from?

-------------------------------------------------

 

 

Thanks for your help.

 

Thad's rule:

ver 8.1.1 wire

fanuc 16W wire post

[flippinjig]

I took a closer look at this and when I # those lines out of the post, I lose G1 at the begining of the program as well as G0 being removed. It's got to be something that is putting the rapid feedrate in the NCI code.