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Type: Posts; User: bryanbdp

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  1. Need help with error code on MC-4VA 201-X Alarm A Servo Amp 2E6 X axis

    Hi. I recently purchased this 1989 MC-4VA and have run into an issue with the X axis.
    On startup, it shows the error code 201-X Alarm A Servo Amp 2E6 on the X axis.
    It tripped the breaker on the...
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    Re: Need advice on oiling system...

    Maybe a product like this for coloring oils:
    ...
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    Need advice on oiling system...

    My new to me Okuma MC-4VA has been siting for about 3 years.
    I want to make sure the entire oiling system is working properly.
    I have removed all the way covers for access.
    The lines I...
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    New(er) encoder did the trick. Machine started up...

    New(er) encoder did the trick. Machine started up and ran well! Very exciting!
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    Thanks for the reply. I ordered another encoder...

    Thanks for the reply. I ordered another encoder to swap.
    I also determined the -SB suffix is servo with brake. Shouldafigured that one out!
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    Okuma axis motor question and error code

    Hi. My Z axis motor got hit hard enough to fracture the motor end cover. Although the encoder looks OK, I am getting an error "065 ALARM P" "SVP start 1021A08"
    It also says Memory Test OK, Load SYS...
  7. Re: Trying to decide - vector drive on Okuma or RPC

    I ended up buying an American Rotary DIY panel which has the better electronic voltage control built in. I hooked it up to my used 40hp delta motor, and it started right up. Hooked up to 125A single...
  8. Re: New user looking for advice about buying MC4VA

    I ended up with a 1989 or 1990 machine. Date on Z axis motor was 11/89, would this be a 1990 model?
    I just finished installing a 40HP RPC, which does start up OK on a 125A breaker.
    Still getting...
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    Re: Changing MC-4VA from 480 to 220V

    After poring over the schematics, it looks like the 3rd leg is the one to use.
    L1 and L2 are used for the single phase loads.
    Quite a bit of stuff is 3 phase, including the spindle control, axis...
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    Changing MC-4VA from 480 to 220V

    I need to change my new to me machine to 220 3ph from 480V.
    It looks like power comes into the main on/off switch, then goes to a multi tap transformer assembly next to the ATC.
    I think I just need...
  11. Re: Trying to decide - vector drive on Okuma or RPC

    FWIW, phase converter vector drives seem to be available to 20hp

    https://www.ato.com/single-phase-to-three-phase-vfd
  12. Trying to decide - vector drive on Okuma or RPC

    Hi. I just hD a moment of sheer insanity and bought an Okuma MC-4VA mill for my home shop. 10hp spindle.

    Machine manual lists power requirements of 26kVA which works out to about 65A at 230 3ph,...
  13. Re: New user looking for advice about buying MC4VA

    In the back of my mind, I am thinking to replace the control system with something more modern. I think my big question is can I use the existing servo's and encoders? I need a new vector drive for...
  14. New user looking for advice about buying MC4VA

    Hi. I am looking to buy a much more capable machine than the X4 I have now. My son is a CNC technician, and he recommended an Okuma MC4VA or similar. He really likes the box ways which he says are...
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    Re: Need help creating a slotted toolpath

    I could interpolate the slots. The bore dimensions for the counterbores are pretty important.
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    Need help creating a slotted toolpath

    I need to create two slots in a part. One is not straight, it has a jog in it. The endmill is the same size as the slot.
    I can't figure out which toolpath to use, and how to handle the entry and...
  17. need help with wavy pattern when facing on lathe

    I have an Enco lathe that is giving me a weird wavy pattern when I face a piece of bronze bushing stock.
    I have tried different spindle speeds, feed speeds and cutters.
    It almost seems like the...
  18. Re: Questions about converting rotary table to CNC

    Nice build! Plenty of food for thought. Do you use a homing switch, or just zero it manually?
    Thank you,
    Bryan
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    Re: 4th Axis Conversion

    .
  20. Questions about converting rotary table to CNC

    Hi. I have a Syil X4 and want to convert a Shars 6" "Yuasa" style rotary table to be an A axis.
    My machine was missing the 4th driver, but I purchased one from Syil. The control board and Mach3...
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    Need help hooking up CandCNC controller

    Hi. I bought a used Syil X4 which came with a PC running windows 8.
    It has one parallel port and a serial port, plust USB.
    The machine came with a CandCNC hand controller, and some kind of a...
  22. Looking for Syil or Tormach style 4th axis 4 to 6 inch

    Hi. looking for a relatively inexpensive 4th axis rotary table, like the type used by Syil, Tormach and other small to mid-size machines.
    For use with CNC 4th axis.
    I have a budget of $200 to $300...
  23. Need help with thrust bearings on RF-20 table

    Hi. I have disassembled the table to my RF-20 to clean everything before adjusting the feed nuts and gibbs.
    I'd like to remove as much slop as possible from the thrust washer assembly.
    Is there a...
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