Missing M08

[CNCGUY]

When posting a program, the M08 will not post. I did some searching and found what should fix it "support coolant using coolant value in post-processor". I have "checked" this, but still no M08. Any ideas?

 

Using a modified V9 Fanuc Post updated to X.

[Guest]

Go into your machine def >> general machine permaters >> coolant tab and make sure it is checked to supprt old style coolant output

 

hth

[Roger Martin from CNC Software]

Setting "Support coolant using coolant value in post-processor" (in the Mach. Def.) is correct for a 'V9' style post updated for 'X'.

 

Once that is done and still no joy, it's time for some investigating...

 

First, it's assumed that you have programmed coolant ON in the toolpath operation in question.

 

In a 'v9' style MPFAN.PST

 

The Coolant command (strings) are usually defined like this ->

 

# Coolant M code selection

sm09 M9 #Coolant Off

sm08 M8 #Coolant Flood

sm08_1 M8 #Coolant Mist

sm08_2 M8 #Coolant Tool

scoolant #Target for string

 

And in the psof$, ptlchg0$ and ptlchg$ postblocks you should have the scoolant command.

(All of these pre-defined postblock names and pre-defined post variable names

will have a '$' append on them when the post was updated for use with 'X').

 

Something like this ->

 

pbld, n, "G43", *tlngno, pfzout, scoolant, next_tool$, e$

 

You can make sure the the scoolant string selector is working by doing this test...

Add '*' in front of the scoolant command in psof$.

 

Like this ->

pbld, n, "G43", *tlngno, pfzout, *scoolant, next_tool$, e$

 

You should now at least see an 'M9' output on the initial tool's "G43" block ->

N108 G43 H1 Z.25 M9

 

Still nothing?

Make sure that you did not add a '$' on the scoolant$, as it is not a pre-defined variable,

and this will cause "nothing" to output.

[CNCGUY]

Looks like I got it now. . . .not sure what i did?

 

As long as it works