metric tap calulations

[mike561h]

 

Question is with haas in english mode and program in english  will this work??

 

 

I'm having a vapor lock on my brain--- 3x ,03937=.11811 x  s100 =Feed 15.00

i was putting rpm 500 x .11811= 59 feed 

did i miss something on RPM damn!!!  Haas VF2  programming in English

Thank You

 

[Guest]

Figure the pitch

M3 x .5

.5 / 25.4 = .01968

500 x .01968 = 9.482 IPM

 

or do a search for the metric library that I converted and shared up here...calculations all done 

Edited January 10, 2018 by Guest

[Leon82]

I always set the threads per inch in the field for it in the tool.

 

So an m3x .5 would be about 50.813 threads per inch

[mike561h]

thanks,

if i were to walk into a shop and do a test i would fail.   why i forgot this simple calc is on me. 2 more years of this

and im done  retired.... maybe my brain does not want to think anymore. i look at parts i have done over the past 35 years and a lot of times i wonder how i did that.... if the guy gets you good parts in spec and is a dumb xxxx so what. its the end product  that counts... dont count the lady with the glass eye and wooden leg out. She might surprise you... 

[mike561h]

21 hours ago, Leon82 said:

I always set the threads per inch in the field for it in the tool.

 

So an m3x .5 would be about 50.813 threads per inch

yea i put in .1181 into tool diameter and set rpm to 500 and the correct feed was applied.....

[Leon82]

24 minutes ago, mike561h said:

yea i put in .1181 into tool diameter and set rpm to 500 and the correct feed was applied.....

Save it to the library so it's always there!

[jeff]

I always feed the tap by the pitch in G95 mode. I've fat fingered speeds and feeds too many times with taps, since switching to G95 mode, no more broken taps because of math.