NX5, postbuilder, using FRN and IPM in the same post

[Jaydenn]

Hello,

I am trying to use Inverse time feed AND Inches per minute feed in the same post.

I have it all set up to do that just fine, I have one thing to resolve to be a happy programmer...

For those unfamiliar, Inverse time feedrate REQUIRES that an "F" word appear on each and every line of code(not Modal).
Regular feedrate does not need it on each line.

What I want is this;
On a regular G94 feed rate, I want the "F" word to be Modal.
During G93 mode, I want "F" to be forced on each line.

Any Ideas how???

I am not interested in simply forcing the "F". This is messy and uses up valuable machine memory.
I want it to be dynamic depending on the feed mode.

Thanks,
J

 

[joycejo]

In the tool paths you want Inverse Time feedrates add the UDE Set Mode and set the feed to FRN

If you want feed per min then add the same UDE and change back to IPM



John Joyce
Tata Technologies
1675 Larimer St.
Denver, CO
www.myigetit.com

 

[Jaydenn]

Hey John,

That's not the issue I'm having.
I can get the output just fine. In fact, I don't even need the UDE to switch it. The post automatically switches for me.
The issue is the actual, physical "F" statements in the file.

Seeing as the "F" word is considered MODAL, right? that is, it is NOT output on each line. It is only output one time.
This is fine for a standard, run of the mill program.

However, when it comes to inverse time, fanuc requires that EVERY line of code have an F statement, even if it is the same value repeted over and over, it still needs it.

So, you see... What I need is Dual behaviors for a single word.
The F word needs to be modal sometimes, and not modal others.
How?

J

 

[joycejo]

This could be customized in the post to force the F word when the FRN mode is active.

John Joyce
Tata Technologies
1675 Larimer St.
Denver, CO

http://www.myigetit.com

 

[Jaydenn]

Thanks John,

I'll look into that.
Something like a custom command that says;
if feed mode is FRN, force always F
otherwise, force once F.

However, on a side note, I just discovered that the machine I was doing this for does NOT support inverse time feedrate.
Oh well, I'm still going to figure it out.

J

 

[shags72]

You could also set up another F word that is now modal and a new feed template with the F word that is just the frn output. Switch between as you say so do the original template or the frn template. Cannot remember the mom var involved in this but shouldn't be that bad. I just don't like the force always thing. This would automate it pretty good I think.