Are post mods taboo?

[TSeavert]

I do not want to get anyone upset, and I am not going to ask for a post. My dealer is going to work on one for us (Next Week). But I was wondering, are there any resources out there to help teach people how to tweak the post files.

Are there help files included with MC that I can't find? or maybe are not installed?

[jrykrl]

what control?

Need more info to help

Jer

[TSeavert]

Fanuc 11M

[mayday]

Hello tseavert, yes there is a post help CD. your reseller should be willing to get you a copy of it.

[jbel]

I just got the post mod CD this week and it is filled with tons of great stuff. As for info on post mods, this is a terrific place to ask questions and the response is usually faster and at least as accurate than that from your reseller. Dont worry about getting flamed for asking modification questions, just dont ask for a working post.

[TSeavert]

I would like to thank everyone who monitors this forum and helps out people like myself. It looks as if this is a great resource for users like myself. Keep up the great work.

 

[TSeavert]

One of the problems I have is that XYZ rapids are posted on the same line. I would like xy moves first then the z moves, at beginning of my operations. Not all 3 simultaneously.

[Guest CNC Apps Guy 1]

We love it when people ask "How do I get my post to do ... when it does ..."

 

It helps to be as specific as possible, What post you intend to modify, that machine, control, etc...

 

HTH

[Post dept]

Tom,

 

Go into your .pst file

Search for the ptlchg postblock

Look for a line that looks like this:

 

pbld, n,*sgcode, *sgabsinc, pwcs, pfxout, pfyout, pfcout, pfzout, *speed, *spindle, pgear, pcan1

 

Change it to look like this:

 

pbld, n, *sgcode, *sgabsinc, pwcs, pfxout, pfyout, pfcout, *speed, *spindle, pgear, pcan1

 

pbld, n, pfzout, pcan1

 

So....just move the call to pfzout or pzout to the next line.

 

Thats it.

[Toolfab]

Now thats a hell of a first post Brett!!

 

Welcome aboard, Tom and Brett

 

[Eric S.]

There may be a swithch for this

 

# Additional General Output Settings

# ------------------------------------------------

nobrk : no #Omit breakup of x, y & z rapid moves

 

I think this might fix your problem too?

 

note: when editing a post make a backup copy. This has saved me many times fumbling my way through a post edit.

 

Eric Salsman

[chris m]

1) Welcome aboard

 

2) nobrk doesn't always work

 

3) ptlchg mods will only affect actual toolchanges, you must also change ptlchg0 so that null toolchanges will also change

 

I have never seen 3ax rapid moves at toolchanges with nobrk set to 'no' in the newer Fanuc posts; what version post are you using?

 

C

[TSeavert]

Thanks guys. The info you gave allowed me to figure out a little bit about how the pst file works. It turned out that I changed prapidout under NC motion and that seems to have fixed my problem. I will examine my output more thoroughly today.

 

The null tool change section, apparently has a conditional statement that runs that output or not. I guess mine is not running that section. When I changed it, it had no effect.

 

And the toolchange section was working properly.

 

Thanks Again!!

[Jimmy Wakeford from Barefoot CNC]

Tom,

 

I got your stuff. Katie is sending out post cd. You can also come up next month on one of the customer days and we can go over some post modification stuff, and I think Katie is going to do a post class in jan or feb.(not on training sched yet.)

Thanks

Jimmy

[Jimmy Wakeford from Barefoot CNC]

Almost forgot, writing your own post is definatly not taboo. Its less work for me so thats a good thing! (When you get done with yours I'll send you some more to work on.)

 

Jimmy