Fanuc TCP explained

[Robert Ouellette]

Hi there I have been searching all morning and can't seem to find what I'm looking for. I am looking for an explanation on how TCP works and how it is formatted for simultaneous 4th axis work. I just switch to a new shop with all Fanuc controls and they don't have G93. it is an option apparently. I am used to Haas controls and G93. now I am trying to do some 4th axis surfacing and if I program with inverse time feed I get alarm and if I use regular feed it just run real slow.

 

I had the boss call Matsuura and they told him why are you using g93. that's old school no one uses that anymore. try TCP. but I can't find how it works or how its supposed to look in the code. Also I am using mastercam X4. yes X4. I am trying to get him to pony up and get with the times.

 

So I am looking for some examples of code on how to turn it on and off. and how it is supposed to look for a simple block of code.

 

also I remember a thread a little while ago where the different high speed machining codes where explained and how there were turned on and off. and I can't seem to find it anymore. if someone could point me to it again I would be very grateful.

 

Thanks in advance for all the help.

[civiceg]

They are all options. I use G93 on our Matsuura vertical w/ rotary. Had to get the option turned on. 

 

 

 

video covers a lot of the FANUC options

[Guest]

True, Inverse Feed is old school. TOP is way better. The control manages the feed rate as opposed to the program (rather you'llere have one feed posted out until it changes as opposed to a feed rate on each and every line).

 

I'may doing this fron memory so I may come back and edit later...

 

T1M6

T2

MY

G131R5 (OR G131M1 THROUGH MY ON NWED MACHINES)

G54A45.

G43.4H#517Z3.0

G0X1.Y1.

G1Z2.0F10.

.

.

.

G0G53G49Z0.M5

M1

 

HTH

[Guest]

TCP stands for Tool Center Point Control. You use that as opposed to always being required to program to center of rotation.

[Ben Wood]

I use TCP on a five axis and it seems to work pretty good.  Most or all high speed code would give me an error when I tried using them with TCP.  I've given up on even trying.  Below are some links talking about the high speed codes.  I too was thinking I had seen a post on this site discussing them but I couldn't find it in my bookmarks.

 

http://www.cnczone.com/forums/fanuc/38604-hsm-functions-aicc-ai-nano-hpcc-risc.html

 

http://www.practicalmachinist.com/vb/cnc-machining/ai-nano-high-precision-contour-control-201189/

 

http://www.practicalmachinist.com/vb/cnc-machining/fanuc-hsm-g08-g05-1-settings-171099/

 

http://www.mtbtech.net/blog/2012/11/09/FANUC-AI-High-Speed-Modes-Simplified.aspx

[Ben Wood]

I found some code using TCP for our Kitamura 5 axis with a Fanuc 16i-mb control. I see in this program I was using G05 P10000.

 

T10 M06 (3MM BALL END MILL)

G54 G17 G90 G40 G49 G80

G990 Q0

M69 (UNLOCK A)

M11 (UNLOCK C)

G00 A0. C0.

G00 X-.3074 Y1.9288 S6500 M03

G43.4 H10 Z9.6187

M08

A-79.138 C24.124

G94

G05 P10000

X.4552 Y.2258 Z9.2606

G01 X.5552 F10.

 

 

G00 X-.4476

X.0713 Y1.4014 Z9.7869

G49

G05 P0

M09

M05

G91 G28 Z0.

M01

[Robert Ouellette]

ok so i tried this and i get improper g code. i guess we dont have these options.

 

now let me ask how does everyone program there 4th axis surfacing tool paths. what codes do you call up to get your feedrates to cut nice? i am asking my boss to look into getting the options so i can do this but our matsuura sales man is asking him what do you want that for? my boss can't seem to explain it right or something. what do i need to ask for so i can cut 4 axis all at once. is there a name for the options i need?

 

also we are in the process of buying 2 new matsurras. a VX-1000 and a VX-1500 with a 4th axis rotary. they are getting AICC-II as an option but i dont know if that comes with the codes needed to be able to cut 4axis simultaniuosly. is there more to buy or is it included? if we need another option whats it called? our sales man does not seem to know what we are asking for.

 

Thanks

[civiceg]

You can buy inverse time (G93) or TCP. I was able to get our salesman to pay for it, because its bullsheet, selling a machine with a "true 4th" and not having the option be included. Apps guy at "....." agreed. I have not used TCP, and I went with using G93 because the MPmaster post supports it very well. Not saying it would be a hard post edit to use TCP, but at the time, I thought TCP was only for 5 axis, which was incorrect. 

 

You can cheat by overriding the feedrate, you are going to always most of the time be limited by the rotary, due to being programed in Deg/min. 1000 deg/min is less than 3 revs per min. It is a hacked way and your feedrate will be different by how far from center line you are. 

[MIL-TFP-41]

also we are in the process of buying 2 new matsurras. a VX-1000 and a VX-1500 with a 4th axis rotary. they are getting AICC-II as an option but i dont know if that comes with the codes needed to be able to cut 4axis simultaniuosly. is there more to buy or is it included? if we need another option whats it called? our sales man does not seem to know what we are asking for.

 

Thanks

 

A probe, "rotary table dynamic fixture offset" (G54.2) and inverse time and you will be able to do all the 4th axis stuff you can imagine.

 

[edit]

You could forgo the inverse time and get the TCP option, only downside to that route is the generic, out of the box posts, are not going to support TCP

[/edit]