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Circular interpolation, tons of flat spots

January 20, 2016, 9:50 am
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Hello all, my first post here. I'm extremely new to CNC repair & diagnostics and I'm hoping someone can help me. At our plant we have a mill that is cutting many flat spots as it does a circular interpolation. The flat sport are in mostly random spots (ie. not in the quadrants) however they seem to be repeatable around the circle on each test cut. I've attached pictures that I hope will help explain what the problem is. I tried my best to get clear pictures but the lighting was difficult off the shiny surface. I have checked the machine for levelness and the rails for straightness and they are perfect. I'm wondering if this may be a taper problem in the spindle or maybe one of the DC motors is messing up. I have tuned the servos perfect and have messed around with reducing the drive's gain with no avail. Initially I thought that maybe the drive's gain was set too high and the drive's were just sitting like a racehorse at the gate but that didn't turn out to be. Help would be greatly appreciated!

Thanks!
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Parameter Setting for Setting a Live-Tool Maximum Speed

January 21, 2016, 8:12 pm
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Hey all-

I have a Fanuc 18i-tb control on a Hyundai-Kia SKT210sy CNC Turning Center. The data printed on the live-tool blocks say they will
run at 5000 rpm but I can't seem to get them to turn any faster then 2500 rpm. Parameter setting? Not that I want to run much faster
then 2500 rpm on these blocks but I do want to know how to get up there for short periods when necessary.

Any help from frey is greatly appreciated!

Josh--
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mori seiki sl-25 lathe trouble

January 24, 2016, 2:50 pm
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hello,i have a mori seiki sl-25 lathe it runs fine in auto when running program but when you go to manual the hand wheel will only make the axes move in Z axes, if you put it in X axes the hand wheel still moves Z axes, jog button will not move -X axes but will move +x +z and -Z fine, checked swithes and they good and got 24 volts comeing to swithes and going out to drive. got and ideas?
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Hello New here

January 26, 2016, 1:53 am
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Hello ,i'm new here, from switzerland, a cnc machine hobbyst,i'm very excited to be part of the community, to share and learn from all of you.
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Brother TC-221 Error 6 ROM error

January 27, 2016, 5:55 pm
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I have a Brother TC-221 and I am getting an "Error 6 ROM Error" at power up. The backup batteries have died. Is this error due to the dead batteries? Do I have to re-enter the parameters? How do I do this?
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Niigata HN100B lost program for toolchange

January 28, 2016, 1:51 pm
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Hi all,
I have a problem with Niigata HN 100B Fanuc15-MA.
We lost programs for palletchange and toolchange 09000.
We did not have backup of programs.
It would be possible to send me these programs?
Thanks for help.
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writing parameters on yasnac i80L

February 1, 2016, 7:53 am
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Hello, I'm new to this forum and figured I give a try to trying to find someone who knows how to write a program that will change the bit/value of a parameter in a yasnac i80L controller.
I am trying to write to parameter #7102 and change bits 3, and 4 of that word under program control. Is it possible? What is the syntax?
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yasnac i80L parameter writing

February 1, 2016, 8:10 am
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I am trying to write a program for my Hitachi-Seiki HT20SIII so that I can change the bit status of a parameter. I am tring to change parameter #7102 (keep relay) bits 3, and 4 under program control but I don't know the commands/syntax.

Does anyone know how to do this if it is even possible?
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how

February 1, 2016, 10:42 am
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96×48"inch wood engraving area which stepper motor suite for for this any one plz give me idea for making home build cnc step by step guide for wood engraving
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Ecoca EL-4610E: Mitsubishi -Z70- Absolute Position Error Alarm number 0001.

February 5, 2016, 2:07 am
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Hello!

I have run into a spot of trouble whit my Ecoca lathe, I get this alarm: "-Z70- Absolute Position Error Alarm number 0001." and when I refer to my machine manual it tells me to consult the "Mitsubishi MELDAS 520L" manual for trouble shooting.

Here comes my real problem though, this manual and most others that my Operations manual tells me would be a good idea to have handy.

So do any of you fine people have any tips on where I can find these manuals?


  • Ecoca Manual, Electrical Manual number: 38C01E01
  • Ecoca Manual, Machine Manual number: 38701E01 (Part one, two, three and four.)



  • Mitsubishi MELDAS 520AL.

Programming Manual: (BNP - B2119A - ENG)

  • Mitsubishi MELDAS 520AL.

Instruction Manual: (BNP - B2112* - ENG)


I have tried contacting both Ecoca and Mitsubishi but whit no luck so farr.

Best regards Daniel.
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New member

February 18, 2016, 9:11 pm
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Thanks for allowing me to use the site, much good information has been found here! I work at a plant that has many machining centers that produce engines.
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Sinumerik 810M GA 1 - shut down instantly

February 24, 2016, 12:33 pm
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Hello,

I have a problem with Sinumerik 810M GA 1.
The machine worked with no issues untill today when it stopped. Fans are working good but the monitor and whole system is OFF.
Is there anyone, who had confronted with this problem and has an idea to resolve it?

Thank you
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Fanuc 0iTF

February 26, 2016, 11:13 pm
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Hello All. I have just joined this site.

I have a Fanuc 0iTF controller on a Vertical Boring Mill. This controller does not recognise G90 commands. How do I do a canned cycle using this controller?
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Duraturn 2550 foot switch failure after machine move

February 27, 2016, 6:37 am
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We have 2 Duraturn 2550 machines that were moved from one plant to another. After getting them back up, on one, the X axis would not move and the chuck would not function with the foot switch. The other machine, the chuck would not function with the foot switch. I will note that the chucks open and close with M10/M11 codes in MDI. The a axis turned out to be the tailstock handle not be locked into position and we are down to just the foot switch issue. Both machines were under power and running before the move.
Any ideas that would cause these foot switches to not operate that we could look for? My guess is it will be something simple such as what happened with the X axis, but not sure.
These are my first Mori Seiki machines in this plant and not familiar with common issues.

thanks for any help
Howard
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maho mh500w cnc232b upgrade

March 14, 2016, 6:06 am
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dear all
we had that machine MAHO MH500w WITH CONTROLLER HEIDENHAIN

CNC 232 B
NC SOFTWARE 242940 08
PLC SOFTWARE 250134 04

the problem we face is that we can not add programs from
modern cad cam programs like solid work as memory capacity
is too small for that large edited programs
do you have any solution to expand the memory that can
accept more lines of G code that can help us form using
modern cad/cam software
and to enter programs by usb also
thanks to all
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Do the Cincinnati Arrow 500 & Arrow 750 use the same pendant ?

April 1, 2016, 2:35 pm
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Hi,

Hopefully somebody can answer this.

Do the Cincinnati Arrow 500 & Arrow 750 Vertical Machining Centers use the same pendant ( P/N: 3-424-2227A) ? If not, do you know what Pendant P/N the Arrow 750 uses ?

Any help will be most sincerely appreciated !!

thanks,

Tom
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Amada machine with ^6M controller

April 9, 2016, 3:01 am
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I have cnc tpp make Amada, while doing ref. T axis ref. complete light not coming, hence auto mode is not running.

can some help,
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Ctek KM-100D parameters

April 11, 2016, 1:22 am
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Good day.
I am looking for advice as to how to get into the parameter setting on my machine.I need to do the backlash settings as I have already adjusted the backlash machanicly.
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Intermittent Vibration at Spindle Start

April 12, 2016, 1:07 pm
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Hi All.. Working with a KOMO VR510 Router that intermittently starts to vibrate like crazy in CW spindle direction after a tool change or when the spindle starts. We are sometimes able to correct the problem simply by stopping the spindle rotation on the controller and restarting the spindle rotation. I had a spindle repair company in and the rep saw the machine in both 'good' state and 'vibrating' state. The rep was puzzled and didn't have an answer other than that they would need to take the spindle in for a rebuild. I don't have any reason to believe that he is wrong, however, I don't have a good reason to believe that he is correct either... Some strange circumstances that go along with this are that the machine runs flawlessly in CCW direction without exception. If anyone can shed some light on this, it would be greatly appreciated. I have contacted Komo but have yet to hear.
Thanks in advance.
Bill
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Fanuc series 18-P

April 13, 2016, 5:14 pm
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Good evening all, I work in the maintenance department of a large manufacturing company. We have an Amada 1010 BLS with a Fanuc series 18-P control. Tonight the control gave an error 1300 watchdog timer (pf). I have look on line and did not find anything on the Fanuc 18-p. Hopefully someone has seen this before and could point me right direction to start trouble shooting. Thank for your help, Scott
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