4th axis winding up

[PROG_MAN_DO]

My post is winding up the 4th axis. How do I stop it. Where is this section do I change something?

 

pcoutrev #Rotary axis revolution calculation (Modify for wind-up)

cdelta = csav - prv_csav

while abs(cdelta) > ctol, #If motion exceeds ctol, add wind-up

[

if cdelta > zero,

[

rev = rev - one

cdelta = cdelta - 360

]

else,

[

rev = rev + one

cdelta = cdelta + 360

]

]

if cuttype <> one, cabs = rev * 360 + csav

else, cabs = sav_rev * 360 + csav

!csav

 

[Brendan P]

If you are only using it for indexing then you should change it to 'one rev'

[PROG_MAN_DO]

Change what to 'one rev' ?

[Hardmill]

What post are you using???

 

 

PEACE

[Hardmill]

In the mpmaster you'll be looking for something

like this:

 

one_rev : 0 #Limit rotary indexing between 0 and 360? (0 = No, 1 = Yes)

 

Look in the rotary axis settings at the top of

post.

 

PEACE

[Allan Brown]

[PROG_MAN_DO]

I am using mpfan.pst

 

Using that post I am very close to what I want, however, I have found at the end of each tool via the following line the post outputs A0

 

pbld, n, protretinc, e

 

This is not desirable. If I # it out the 4th winds up. I need the 4th axis to reset, just not show it in the code. I have frc_cinit set to 1 fyi. After this problem is solved I then need to lock and unlock the 4th. More code please..

[PROG_MAN_DO]

by the way..one_rev is not in this post..

[Brendan P]

quote:

---

by the way..one_rev is not in this post..

---

You should be using the mpmaster post for 4 axis stuff.

It will be in there.

[Mick]

Yes what Buckethead said I'd highly recommend the MPMaster post if you're doing 4 axis work.

 

I've used the MPMaster for the Fanuc, Okuma, A2100 and the Seimens 840D. These posts rock, for both 3 axis and 4 axis.

 

A containerload of kudos to InHouse Solutions, and especially Dave Thomson....

 

Now, Dave, if you've got any spare time, there is a huge gap, that MPLMaster_Okuma would fill.... hehehehehehehehe

[PROG_MAN_DO]

I assume mpmaster is on the installation disk. If not where can I get it?

 

Thanks for the help gentleman. Much appreciated!!

 

I have been

 

and now I am almost..

 

One other question. I was told by me reseller that the only post that was updated with each release was mpfan. That's why I was using that post. Is there any truth to that statement?

[Hardmill]

Check here .

 

 

PEACE

[Hardmill]

Its really a great post. If your current post does'nt

have alot of hours invested I'd highly suggest

switching over. You'll get a whole lot more out

of the MPmaster.

I'm sure you need to tweak the rotary axis settings

in the MPfan. I just have'nt got to it yet.

 

PEACE

[PROG_MAN_DO]

You're right, it is a very nice post. Thanks for the lead. I am altering as we speak..er write to suit our needs..

 

Thanks again..

[EZ3PUTT]

We had the same problem on our Mori Seiki mills. Do all the rotary work, load the next part push cycle start and it would unwind all those revolutions. A parameter change in the control solved our problem.