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Type: Posts; User: PMT

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  1. Re: Are Twin spindle Twin turret lathes as complex as they look?

    I would be very cautious looking for this type of machine used.

    Repo, bankrupt auction? You may be OK. If it's a trade in sitting at a used dealer facility???

    Typically, these things are ridden...
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    1,614

    I believe the pitch of the screws and the size of...

    I believe the pitch of the screws and the size of the servos make it a poor choice for decent milling. Had a customer who had a problem with the part moving while he plunged an end mill. Turns out...
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    2,138

    X2 for the belts.

    X2 for the belts.
  4. Replies
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    2,823

    M99 instead of M30 at the end of the program will...

    M99 instead of M30 at the end of the program will run it again.
    Could you try M99 L10 at the end and see if it runs 10 times instead of indefinatley?

    A quick experiment:
    O0001;
    G4 X2.;
    M99 L5;...
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    1
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    2,406

    Probably need to adlust the limit switch for the...

    Probably need to adlust the limit switch for the quill. should be under the plate on the body held on by too many bolts. Typically you would adjust the switch so it is made befor the end of quill...
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    1,309

    Radial Alignment - Remove cover center of turret....

    Radial Alignment - Remove cover center of turret. Remove 2 taper pins with slide hammer. Loosen bolts for curvic coupling. Run indicator on OD tool slot parallel to x axis.
    Run X up and down and...
  7. Replies
    3
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    1,292

    Sounds like the hose going back to the hyd. tank...

    Sounds like the hose going back to the hyd. tank (where the heavy leak is) may be plugged.

    There are no contact seals on the revolving part of the actuator therefore some oil will bypass.
  8. Replies
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    3,649

    IDX, Had a similar problem on a lathe...

    IDX,

    Had a similar problem on a lathe recently, was a PITA to find.

    Turn out the toothed ring on the back of the motor was loose on the shaft (supposed to be pressed on).

    Dont know how this...
  9. Replies
    3
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    864

    The 88 and 89 chips are on the master board next...

    The 88 and 89 chips are on the master board next to the rs 232 connector. I have never known Fanuc to replace these in the field. They typically swap the master which should be in the $700 range for...
  10. Thread: Error 7156

    by PMT
    Replies
    2
    Views
    969

    You will have fans inside your yellow spindle amp...

    You will have fans inside your yellow spindle amp as well. I believe one inside the yellow box and anohter under the heatsink behind the main amp. the alarm on the amp should indicate which fan is...
  11. Replies
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    1,790

    If it is a typical 4 angular contact bearings...

    If it is a typical 4 angular contact bearings spindle, bearings should run around $800 - 1200. Changing bearings in these is far from rocket science. However there are some very critical points to be...
  12. Thread: MOVABLE BAR FEEDER

    by PMT
    Replies
    4
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    1,163

    We rep. MTA; Iemca and Edge here in WI. They all...

    We rep. MTA; Iemca and Edge here in WI. They all have rails on their shorties but none have rails on the 12 footers. When you start approaching the larger dias. turning at lathe speeds with 8' - 9'...
  13. Thread: MOVABLE BAR FEEDER

    by PMT
    Replies
    4
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    1,163

    Is it a shorty or 12' feeder? I thought most of...

    Is it a shorty or 12' feeder? I thought most of the short feeders have been mounted on linear rails over the last several years just for that purpose. I am not aware of any 12 footers built that way...
  14. Replies
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    1,545

    The timer needs to be far enough left to fit on...

    The timer needs to be far enough left to fit on the line. I believe you can have 2 contacts before it. Perhaps you could write your logic on another line bringing up one contact to activate the timer.
  15. Replies
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    1,942

    The newer i series can not be chaged in the field...

    The newer i series can not be chaged in the field (> july 2006 i believe). They can be viewed in nc diagnostics Starting at # 10000 I think. Changes must now go thru Fanuc. It can be done via email...
  16. Thread: Bearing Heater

    by PMT
    Replies
    3
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    811

    If you are doing a spindle where you have open...

    If you are doing a spindle where you have open bearings I would recommend against putting the spindle in the freezer. The coffee pot thing is good but if you cool the spindle as well you will get a...
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    2,396

    The manual states it is a "plus" hard limit so...

    The manual states it is a "plus" hard limit so look at the + OT inputs.
  18. Replies
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    1,059

    Perhaps you need a square instead of a triangle....

    Perhaps you need a square instead of a triangle. Aligning a machine like that is not for a novice. Is the machine new or used. Fanuc does have an option called "straightness compensation". You can...
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    1,299

    My i series motors are 1 dia. : 10 length

    My i series motors are 1 dia. : 10 length
  20. Replies
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    1,542

    The MTB should have a procedure to re zero the...

    The MTB should have a procedure to re zero the turret motor. the newer lathes I see all have Absolute position coders so you need to follow their procedure. As far as balance The MTB may be able to...
  21. Replies
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    1,370

    Get some componant cooler. you can cool a more...

    Get some componant cooler. you can cool a more concetrated area than you can heat. you should be able to pinpoint an area about the size of a quarter or so by heating it up then cooling various...
  22. I programmed on a few years ago working like...

    I programmed on a few years ago working like Al's: pull pin, rotate, shoot pin, reverse to clamp. 3 phase motor does not slow down. I believe position was indicated by 4 bit binary switch. I used...
  23. Replies
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    2,706

    Had a Similar problem withone 8K and one 10K...

    Had a Similar problem withone 8K and one 10K spindle in the past ( same shop). Turned chiller temp setting to 0 deg. (ambiant temp.) and no more problems. Dealing with NSK, the only thing we could...
  24. Thread: Yama Seiki

    by PMT
    Replies
    23
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    4,838

    Hey Rich, He may be a salesman but he is 100%...

    Hey Rich,
    He may be a salesman but he is 100% correct. I am the Wisconsin dealer and my experiance comes from servicing CNC's for 20 years. If you want Info on the machines, feel free to give me a...
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    here is a copy paste of a similar fault Rate...

    here is a copy paste of a similar fault

    Rate Member posted 04-02-2007 04:27 PM
    --------------------------------------------------------------------------------
    Lightning...
  26. Replies
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    7,350

    Congrats on getting married!! Yes, Still...

    Congrats on getting married!!

    Yes, Still racing NSCA Pro Comp (10.5 tire all motor class). We dont get down south any more, midwest and east coast now. I am fortunate to have room at the shop to...
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    Snake, I see your a drag racer from Montgomery,...

    Snake, I see your a drag racer from Montgomery, I've been to that track a few times (NSCA Racer) it is a nice facility. I think you hit the nail on the head when you said Smile may be spamming his...
  28. Yama sieki, and most others, do not put a "tape"...

    Yama sieki, and most others, do not put a "tape" or dnc mode on lathes. I am sending a PM with more info.
    Ken
  29. Captn., Do you have a machining center or...

    Captn.,
    Do you have a machining center or lathe? I have run several Yama Seiki VMB's off the card in "tape" mode. I assumed that was standard for them.
  30. Replies
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    If you page thru your parameters to "parameters...

    If you page thru your parameters to "parameters relating to feedrate" you will find a jog feedrate parameter. it is probably set to 1000 MMPM right now. 10% = 3.94 IPM. if you change the param to 500...
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