How to get Y0. at the end of the program on the last tool

[Grimes]

Ive been messing around with my post just trying to find a way to know how to put y0. at the end of the last g91g28z0. line.  I can make it do it at the end of every tool, but how would you go about doing it just at the last tool? I always put the the program into the machine and forget to put that in.

[So not a Guru]

7 hours ago, Grimes said:

Ive been messing around with my post just trying to find a way to know how to put y0. at the end of the last g91g28z0. line.  I can make it do it at the end of every tool, but how would you go about doing it just at the last tool? I always put the the program into the machine and forget to put that in.

What post are you using?

[Colin Gilchrist]

Look for the Post Block 'peof$'.

In 'peof$', one of the first calls is usually to 'pretract'.

Inside 'pretract' is where your "G91 G28 Z0." comes from.

When you are processing 'peof$', the value of the 'gcode$' variable is '1003'. This indicates the "End of File" NCI Gcode.

So, to only output "Y0." at the end of the file, add a line of code like this to 'pretract':

      if gcode$ = 1003, pbld, n$, "G91 G28 Y0.", e$

 

 

[nickbe10]

51 minutes ago, Colin Gilchrist said:

So, to only output "Y0." at the end of the file, add a line of code like this to 'pretract':

Hey Colin,

So in my posts this has been done using a string literal just before the M30 in peof$:

      n$, "G28 Y0.", e$
      n$, "M30", e$

What is the advantage of doing this from the pretract ?

I also just noticed this line commented out in peof$:

# pbld, n$, *sg28, "Y0.", protretinc, e$

are these just different ways to skin the cat or are there specific instances where one is better than the other (aside from zeroing out the rotary axis)?

[Leon82]

Some people want a y0 after every tool, so it would go in the pretract is my guess.

 

Then you could make it a switch for every tool or just the end of file

[Colin Gilchrist]

4 hours ago, nickbe10 said:

Hey Colin,

So in my posts this has been done using a string literal just before the M30 in peof$:

      n$, "G28 Y0.", e$
      n$, "M30", e$

What is the advantage of doing this from the pretract ?

I also just noticed this line commented out in peof$:

# pbld, n$, *sg28, "Y0.", protretinc, e$

are these just different ways to skin the cat or are there specific instances where one is better than the other (aside from zeroing out the rotary axis)?

Just different ways to skin the donkey my friend. 

[nickbe10]

1 hour ago, Colin Gilchrist said:

Just different ways to skin the donkey my friend. 

so that's my problem(s), all these years I've been skinning cats when I should have been skinning donkeys......just out of curiosity are the donkeys any easier to herd....?!

[Grimes]

Thanks, our company just uses the default mill post. Don't think they ever asked for a custom one. Will test this out tomorrow.

[Grimes]

On 5/8/2018 at 10:04 AM, nickbe10 said:

Hey Colin,

So in my posts this has been done using a string literal just before the M30 in peof$:

      n$, "G28 Y0.", e$
      n$, "M30", e$

What is the advantage of doing this from the pretract ?

I also just noticed this line commented out in peof$:

# pbld, n$, *sg28, "Y0.", protretinc, e$

are these just different ways to skin the cat or are there specific instances where one is better than the other (aside from zeroing out the rotary axis)?

I used the second way, found it by searching 1003. Just before the M30, is the # pbld, n$, *sg28... one. All i did was remove the # it posted "G28 X0. Y0. A0.". I just had to modify it to how I wanted it to post, I'm happy now thanks everyone.