X3 Rigid tap...

[?Mark]

Started using "G95" #Feed per rotation in my post (based on generic 4axis fanuc) and I'm having problems when using metric taps.

Feed/speed calculations are off, but it could be me .

Can someone else try it?

 

 

Thanks

[Guest]

Mark,

 

First thing make sure the use_pitch variable is set in the post

 

If it is and it's not working then you have to do 1 of two things, either code your post to calculate for metric taps or save your metric tap to the inch library and calculate the TPI.

 

I've done this to read it out of the metric library

 

code:

---

pdrlcommonb

pbld, n$, "G95", e$

pbld, n$, "M29", *speed, e$

pitch = (feed / sav_ss)

#if met_tool, pitch = n_tap_thds #Tap pitch (mm per thread)

#else, pitch = 1/n_tap_thds #Tap pitch (inches per thread)

pcan1, pbld, n$, *sgdrlref, *sgdrill, pxout, pyout, pfzout,

prdrlout, *pitch, !feed, strcantext, e$

pcom_movea

---

I create the sav_ss variable and plug it in in the tool change section

 

sav_ss = speed

 

right undert he G43 line.

 

code:

---

pbld, n$, "G43", ptlngno, pfzout, scoolant, e$

sav_ss = speed

---

if you use it don't forget to format the sav_ss vaibale

 

code:

---

sav_ss   : 0

---

I added it to the drill variables section

[?Mark]

quote:

---

I've done this to read it out of the metric library

---

Something has changed with the way mc is calculating/reading the numbers from the metric tool library.

It worked well for me before and I thought switching to fpr messed it up for me, but just now switched back to ipm and the output is still wrong.

 

John, thanks very much for the help. I'll play with the post when I have some breathing room here hopefully later today.

Regards, Mark

[Guest]

Mark,

 

It is "possible" that however it was being calculated in your post needs to be checked.

 

Depending on how it was accomplished, it may well a real quick adjustement