Integrating G234 in fanuc 5x generic post

[ikertx0]

Hello!!
Starting from a generic 5x post from Fanuc, I was able to convert it to Heidenhain AC and Haas BC. But only for 3+2 operations.

I want to add G234 (TCPC) to use the post in 5x continuous.

Could someone help me, to see how to get started?

Best regards

[Leon82]

I think there is a lot of maths involved and usually it's a paid option from a dealer or post maker

[JParis]

1 hour ago, ikertx0 said:

Could someone help me, to see how to get started?

Sure...

Pickup phone, call reseller...hello, I would like to buy a post with these options and I'll send some sample code...

That edit is no easy lift.

[ikertx0]

25 minutes ago, JParis said:

Sure...

Pickup phone, call reseller...hello, I would like to buy a post with these options and I'll send some sample code...

That edit is no easy lift.

I have purchased all the posts from postability. Just because I like to schedule posts I want to do it as a hobby

[JParis]

Bad choice for that function

[Alex Dales]

I agree with the posters above that you will be best off going through your reseller for a post.

The G234 TCPC function on the Haas controller uses a part relative coordinate system. This mean that for multi-axis toolpaths programmed using Top-top-top, the XYZ values in the back plot match the XYZ values in the G-code.

If don't recommend doing this this, but if you wanted to oversimplify and are just playing around as a hobby, then you can try directly outputting the x$, y$, z$ values when the G234 is active.

in theory it is this simple, but I wouldn't totally trust that method for building a post and running it on a machine. It might work decently well in most cases, but eventually you will run into a condition where this oversimplification comes back around and costs you more in the long run.

[ikertx0]

On 4/11/2024 at 6:52 PM, Alex Dales said:

I agree with the posters above that you will be best off going through your reseller for a post.

The G234 TCPC function on the Haas controller uses a part relative coordinate system. This mean that for multi-axis toolpaths programmed using Top-top-top, the XYZ values in the back plot match the XYZ values in the G-code.

If don't recommend doing this this, but if you wanted to oversimplify and are just playing around as a hobby, then you can try directly outputting the x$, y$, z$ values when the G234 is active.

in theory it is this simple, but I wouldn't totally trust that method for building a post and running it on a machine. It might work decently well in most cases, but eventually you will run into a condition where this oversimplification comes back around and costs you more in the long run.

I don't understand your answer very well.

I must create a new postblock, to specify that when they are 5-axis operations, is that correct?
Could you give an example? I don't quite understand outputting the x$, y$, z$ values when the G234 is active.

 

I have created the p_5axis postblock to block these operations.
p_5axis
     if (tool_op$ = 28 | tool_op$ = 29 | tool_op$ = 45 | tool_op$ = 48 | tool_op$ = 49 | tool_op$ = 107 | tool_op$ = 109 | tool_op$ = 110 |
     tool_op$ = 111 | tool_op$ = 112 | tool_op$ = 113 | tool_op$ = 441 | tool_op$ = 442 | tool_op$ = 443 | tool_op$ = 444 | tool_op$ = 445 |
     tool_op$ = 446 | tool_op$ = 447 | tool_op$ = 448 | tool_op$ = 449 | tool_op$ = 450 | tool_op$ = 451 | tool_op$ = 461),
     [
     result = mprint ("Configurado solamente para mecanizados 3+2. No es posible realizar operaciones de 5 ejes continuos.")
     exitpost$
     ]

 

I can write to use G234 when using one of those operations, but do I simply have to replace x$, y$, z$ with what values?

p_g234
    if p_5axis ,
       [
       pbld,n$, "G234", *tlngno$, *x$, *y$, *z$, e$
       ]

 

Best regards

[ikertx0]

fmt  "X" 2  x$        #X position G234
fmt  "Y" 2  y$        #Y position G234
fmt  "Z" 2  z$        #Z position G234

 

p_g234
    if (tool_op$ = 28 | tool_op$ = 29 | tool_op$ = 45 | tool_op$ = 48 | tool_op$ = 49 | tool_op$ = 107 | tool_op$ = 109 | tool_op$ = 110 |
     tool_op$ = 111 | tool_op$ = 112 | tool_op$ = 113 | tool_op$ = 441 | tool_op$ = 442 | tool_op$ = 443 | tool_op$ = 444 | tool_op$ = 445 |
     tool_op$ = 446 | tool_op$ = 447 | tool_op$ = 448 | tool_op$ = 449 | tool_op$ = 450 | tool_op$ = 451 | tool_op$ = 461),
     [
     pbld, n$, "G254 (DWO ON)", e$
     pbld, n$, *xout, *yout, e$
     pbld, n$, "G255 (DWO OFF)", e$
     pbld, n$, "G234", *tlngno$, *x$, *y$, *z$, e$
     ]

T8 M06 ( MPMHVD2000 )
G54 G17 G90
S3501 M03
G00 B-5.995 C88.739
G254 (DWO ON)
X-88.688 Y-101.794
G255 (DWO OFF)
G234 H8 X99.662 Y-97.922 Z62.164
G00 G54 G90 Y-101.794 C88.739 B-5.995 S3501 M03  ---------- DELETE
G45 D38 X-88.688  ------------ DELETE
X-88.688 Y-101.794  ----------- DELETE
G43 H8 Z71.82 --------- DELETE
X-105.861
Z-16.526
X-107.387
Z-24.379
G01 X-107.769 Z-26.342 F1960.6

Will this be the code to delete?

        if cut_ra_head & use_g45, #Swap xout and yout based on offset axis
          [
          p_g234
          tloffno2 = tlngno$ + g45_of_add
          pcan1, pbld, n$, *sgcode, pwcs, *sgabsinc, *yout, *p_out, *s_out,
            *speed, *spindle, pgear, strcantext, e$
          pbld, n$, "G45", *tloffno2, *xout, e$
          ]
        else,
          [
          #pcan1, pbld, n$, *sgcode, pwcs, *sgabsinc, *xout, *yout, *p_out, *s_out,
            #*speed, *spindle, pgear, strcantext, e$
          ]
        ]

 

It's a good start, I'm proud.
I have to eliminate some line of code.

I have a question, where does the XY position that is between G254 and G255 come from? since the one that currently appears is wrong, checking with the purchased post

[ikertx0]

@Alex Dales can you help me please?

[ikertx0]

nobody?