Force 4th Axis output at Tool change

[DR-CME]

Current post outputs 4th axis rotation at tool change only if position is different from the previous position. How can I force it to output the 4th axis rotation at every tool change.

 

The machine is a Maatsura HMC 405 with 5 degree indexing.

 

The post we are using is:

 

V14.00 E1 P0 T1232650364 M14.00 I0

# Post Name : Generic Fanuc 4X Mill.pst

# Product : Mill

# Machine Name : Generic

# Control Name : Fanuc

# Description : Generic 4 Axis Mill Post

# 4-axis/Axis subs. : Yes

# 5-axis : No

# Subprograms : Yes

# Executable : MP 14.0

[NOTW Programmer]

You mean you want the A coordinate to be with the TxM6 or right after. Post a sample of code of what you want.

[NOTW Programmer]

Here is what I get from my post.

T5 M6
G0 G90 G54 X-.3 Y1. A0. S3000 M3
.....
T4 M6
G0 G90 G54 X-.3 Y1. A0. S3000 M3
.....
T4 M6
G0 G90 G54 X.3 Y-1. A180. S3000 M3
.....
T5 M6
G0 G90 G54 X.3 Y-1. A180. S3000 M3
.....
T5 M6
G0 G90 G54 X.3 Y-1. A180. S3000 M3 <--------- Even the same tool and position posts out the A180.

As you can see whether the position is the same or different, the A coordinate still gets posted. I noticed that the pfcout command is in my psof$, ptlchg$, and ptlchg0$ blocks and it forces the rotary coordinate to be posted. Check it out in your post. If it is missing then here is what my pfcout looks like,

pfcout          #Force C axis output 
     if index = zero & rot_on_x,
       [
       if use_rotmcode & cabs <> prv_cabs, *sindx_mc
       if absinc$ = zero, *cabs, !cinc
       else, *cinc, !cabs
       ]

[DR-CME]

Thanks for the response.

 

The postblock pfcout is right. However, this post apparently was modified to output the rotary axis motion before the other positioning moves using a pindex postblock .

 

The output reads:

 

 

G90 B0.

G0 G90 G54 P211 X-7.0075 Y-1.48 S4500 M3

G43 H1 Z2.02 T2

M8

M50Z.02

 

 

Here is how it is written in the psof$ postblock:

pindex

if mi1$ > one, absinc$ = zero

pcan1, pbld, n$, *sgcode, *sgabsinc, pwcs, pfxout, pfyout, pfcout,

[if nextdc$ <> 7, *speed, *spindle], pgear, strcantext, e$

pbld, n$, sg43, *tlngno$, pfzout, scoolant, pstagetool, e$

 

Not sure how this is supposed to function.

[K2csq7]

Post a sample of code of what you want.

[DR-CME]

In the attached file the Tool 8 is on the same tool plane as Tool 7, so there is no output of an index command. We need the index command to output even if the rotation is the same.

 

It is redundant, but if an operator drops down in the progam to rerun a tool, the pallet needs to index to position.

 

 

 

 

 

[alexvelilla]

what is pfcout?

[K2csq7]

Your going to need to show us what your getting for code and what you want to get for code...

A sample z2g file posted here would be the best. This way we have the modified post you are using.

[Bryan Johnson]

if the following line exists in your post, check its fetts to be as shown.

 

frc_cinit : 1 #Force C axis reset at toolchange

[CJep]

what is pfcout?

 

It's a post block that forces the c rotary output, in the post all rotary output is controlled by index/cout the A,B,C labels get assigned as needed.

[DR-CME]

Thanks all,

 

This for an indexed axis not for a full rotary axis.

 

Had to copy pindex and create pfindex and call it in in ptlchg$ and ptlchg0$

 

 

This is the post mod_

 

pfindex #Index output 'FORCED'

if index & rot_on_x,

[

#if (prv_indx_out <> fmtrnd(indx_out)) | (prv_cabs <> fmtrnd(cabs)),

[

if rot_lock, pbld, n$, *sunlock, e$

pbld, n$, [if use_rotmcode, `sindx_mc], *sgabsinc, *indx_out, e$

!cabs, !cinc

if rot_lock, pbld, n$, *slock, e$

]

]

 

pindex #Index output

if index & rot_on_x,

[

if (prv_indx_out <> fmtrnd(indx_out)) | (prv_cabs <> fmtrnd(cabs)),

[

if rot_lock, pbld, n$, *sunlock, e$

pbld, n$, [if use_rotmcode, `sindx_mc], *sgabsinc, *indx_out, e$

!cabs, !cinc

if rot_lock, pbld, n$, *slock, e$

]

]