g huns

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g huns last won the day on November 16

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About g huns

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  1. Because we were too cheap to send large blocks out for gundrilling, we silver soldered 7/16", jobber length drills into looooooooong pieces of O-1 drill rod for use in a radial drill or boring mill. We would often drill through 48" long plates like this, drilling 24" from each end. The silver soldered joint was never a problem. How "on center" you could sharpen a drill, by hand, was the biggest issue.
  2. g huns

    Fanuc G68.2 with rigid tapping

    So I now have the second machine working too. Parameter 1832. Machine had numbers in the boxes for each axis. Zeroed them all out, now it works. Unlike other parameters, 1832 has no name, no indication of what it actually does.
  3. g huns

    Fanuc G68.2 with rigid tapping

    Yoda was unreachable, but the guy at Cimatron who wrote our post is relentless. 5312 turned out to be the fix for one of our machines. He found this in some Fanuc documentation... Don't ask my why Fanuc or Enshu couldn't find this. We had zeros in all the boxes. Set X 200, Y 200, Z 2500 and it ran like a champ. Like a dumbarse, I set the other machine the same, but didn't test it. Today when we tried to run a job with rigid tapping on a TWP, it approached to the clearance plane and stopped. Just sat there, no error, just sat. The operator toggled to manual and back to remote, then hit cycle start. The spindle fired up and it tapped to the bottom of the hole. Where it again stopped. Toggling to manual, back to remote, cycle start didn't make it start up. We use quick change tap holders, so we just released the tap and backed it out by hand. So progress has been made. But not 100% there just yet.
  4. g huns

    Fanuc G68.2 with rigid tapping

    That's all you have to do?
  5. g huns

    Fanuc G68.2 with rigid tapping

    Our operators aren't really adverse to work, it's change the fight tooth and nail. We run our 5X Roeders lights out and balls to the wall. They never had a chance to run it the old way because I refused to program it the old way. When I ask why we can't run other machines in a similar fashion, the excuses go on for days. I did convince one today to actually turn the rapid from 50 to 100% on one of the new Enshus. The program had already been successfully ran on one block, so why not crank it up and let her tip on #2? Holy chit those things are fast.
  6. g huns

    Fanuc G68.2 with rigid tapping

    Operators don't work for me, I am NOT their boss, and they are quick to tell me so. You shoulda heard the weeping and gnashing of teeth when I told all my programmers to start posting programs with real speeds and feeds, instead of S0 F0. Which the operators used to fill in with whatever numbers they felt like that day. And no, that was not in 1981. It was 2 years ago.
  7. g huns

    Fanuc G68.2 with rigid tapping

    It's honestly the least of our worries around here. Frustrating is watching an operator hand change tools on a machine with a perfectly good tool changer. Or stopping a machine mid program cause it's quittin time and the machine cannot run without the operator standing and watching it.
  8. g huns

    Fanuc G68.2 with rigid tapping

    It really doesn't matter to me. It's the whining from the operators I'm adverse to. If I had my way, we wouldn't rigid tap ANYTHING. We'd thread mill every hole that requires a thread. If we can't reach it, or it's too small, let a toolmaker hand tap the phuker.
  9. g huns

    Fanuc G68.2 with rigid tapping

    But I don't wanna use pitch. I recently had a visit from a couple big shots from Enshu Japan. I sent another email to their US support guys and cc'd the Japanese bosses. See if that gets me some traction.
  10. g huns

    Fanuc G68.2 with rigid tapping

    No such luck. Finally got back to this. We found some weird, unrelated post issues that had to be worked out. And we had ZERO actual work to do in these machines. Which you'd think would be a great time to test things. But instead the operators just go home. Our rigid tap works with the M03 SXXX before the M29 SXXX as long as we're not using G68.2. But just for fun we removed it and tried with G68.2, still hates it. As somebody recommended, stuck a G17 in for S&Gs, also no dice. Here you go...
  11. g huns

    Fanuc G68.2 with rigid tapping

    Here is a known 'good' program with rigid tapping and no TWP... G90 G80 G40 G49 G91 G30 Z0. G90 M906T154 S145 M3 T154 G56 G0 B0. X-2.045 Y-5. G43 Z3.H 154 M8 (AUTO_DRL - M12 TAP) G94 M29 S145 G84 G98 X-2.045 Y-5. Z-.70003 R.19997F10.0000 Y5. R.19997 G80 M9 M19 G91 G30 Z0. G90 G91 G30 X0 Y0 G90 M30 % The S145 M3 after the tool change causes no problems. But I also noticed we do NOT have a G17 thrown into the first line which I could see causing problems in a TWP program. And according to the book, G84 is a tapping cycle and G84.2 is a rigid tapping cycle. I almost NEVER program this kind of stuff for these machines, so I'm a little oblivious to the problems we are having. But for some reason, I'm the guy who has to figure them out. A couple of other tidbits; we had two operators recently leave for greener pastures. Since they left, the kid running the Enshus has been a tap breaking fool. I chalked that up to inexperience. But I also recently changed a parameter that was effecting our drilling cycles. Drills were starting to move in Z before the spindle arrived at the programmed speed. Parameter 3708, bit #0 was changed from 0 to a 1. Not sure if that's causing us trouble with breaking taps. The kid should be out of work tomorrow and I should have time to play around and see what's going on.
  12. g huns

    Fanuc G68.2 with rigid tapping

    Ghuns left the building at 2:30 eastern. He is several beers deep into celebrating Murrica's birthday. He is unable to answer any of your questions. I'll dig up a non TWP program with rigid tapping and see how it is posted on Thursday. Thanks for all the suggestions.
  13. g huns

    Fanuc G68.2 with rigid tapping

    Me, the guy from Cimatron who wrote the post, his customer with a Makino running his post, the world famous James Meyette, and some eMC help is the only reason TWP and TCP work at phuking all. Literally, the only parameters the Fanuc guy set right were the ones that enabled TWP and TCP as options. I cut our MTB a lot of slack in this. They have never had these options installed on one of their machines. I don't even think they understand what they do. After dealing with Fanuc, I think you can count on one hand the number of people they employ who understand it all. And they don't send those guys out on service calls. I think most of knowledge about this stuff resides with MTBs that install these options frequently. The president of Enshu is coming over from Japan to visit later this month. He will be hearing a lot about it.
  14. g huns

    Fanuc G68.2 with rigid tapping

    It's a 1. I'm glad someone understands it. I feel like a total dumbarse every time I try to make any sense out of it. No. Our post just outputs that G05.1 Q0 at the end of every program. I agree. And since Fanuc couldn't even get the major ones right to make TWP and TCP work, I doubt they are gonna fix this either. Yes. Rigid tapping is no problem when NOT using TWP.
  15. g huns

    Fanuc G68.2 with rigid tapping

    Haven't needed it yet. And we have run on multiple sides of a block using multiple G68.2s.

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