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Type: Posts; User: JayCrumb

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  1. Replies
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    Right idea... Cotton gins

    Right idea... Cotton gins
  2. I'll second the "bad bottle" statement. Seen...

    I'll second the "bad bottle" statement.
    Seen this a few times with regenerated resin.
    You can avoid this by using virgin only, but that isn't very green or financially responsible.

    I would also...
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    Excellent point plastikdreams... While a fine...

    Excellent point plastikdreams...
    While a fine grade graphite is definitely the right move over copper, there are also processing methods that need to be considered.
    Multiple electrodes and burn...
  4. Is the wire breaking in the workpiece? I'm...

    Is the wire breaking in the workpiece?

    I'm assuming with the depth of investigation you are undertaking, that you have already ruled out mechanical issues such as: Higher/possibly uncalibrated...
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    Gord, The only time I have ever recommended...

    Gord,

    The only time I have ever recommended foam vs. CO2 is on older machines in which a "kill if activated" relay is difficult to install.
    Nine times out of ten, just shutting down power to the...
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    Excellent points. Thanks guys. Jay

    Excellent points.
    Thanks guys.

    Jay
  7. Replies
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    Charmilles 640cc Axis over-travel errors

    Howdee all,

    Local shop is getting an over-travel error on the X axis when near the ends of travel but not actually at the end of travel.
    First thought was a dirty/worn seal plate as it is leaking...
  8. enkad, I have seen water conductivity high...

    enkad,

    I have seen water conductivity high enough to completely stop the EDM process many times.
    The fact that you aren't getting an error on the machine makes me think your DI probe it dirty....
  9. Install a SGC-01 board in a Sodick A280L Akron, Ohio area.

    Hello all,

    Does anyone having the technical skills needed and want to make a couple bucks in the next few days?
    Job is in Akron, Ohio (can't pay for travel) diagnosing and most likely simply...
  10. Replies
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    I have seen issues with the aftermarket collets....

    I have seen issues with the aftermarket collets.

    Jay
  11. Thread: Ona edm

    by JayCrumb
    Replies
    10
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    4,643

    ONA has always held the niche of "BIG"...

    ONA has always held the niche of "BIG" workpieces.
    It used to be, if you needed to work on big stuff, it was the only show in town.
    A recent high level executive (who no longer works there) worked...
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    The centrifugal filter used to be owned by ONA...

    The centrifugal filter used to be owned by ONA and was not available for sale separately.
    But...this past IMTS I saw it for sale by itself...
    It was an Asian manufacturer.
    I looked for the info I...
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    I second the don't drain... Not just tank that...

    I second the don't drain... Not just tank that hold dirt that will flake off and cause issues in solenoids.
    Also debris in lines, pumps, and everywhere else.
    How long are the machines going to be...
  14. GEC-ENG, Does the light go out when the wire...

    GEC-ENG,

    Does the light go out when the wire is not run through the path?
    If the light remains on with no wire, your issue is board related.
    If the light is off with no wire, then I would check...
  15. ...and not just the heads!!!... Look at the...

    ...and not just the heads!!!... Look at the bottom of the work-tank!!! It's white!!!
    I'm guessing this service/support guy will never step foot in Mr. precisionmetal's shop for a WEDM PM.

    But...
  16. I agree with fast-hole EDM as the best option as...

    I agree with fast-hole EDM as the best option as long as they aren't aerospace.
    No core electrode...
    Conventional drilling would difficult due to the approach angle correct?

    30 seconds max per...
  17. Replies
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    Is the electrode/workpiece all blacked and arc'd...

    Is the electrode/workpiece all blacked and arc'd at point of burn?
    If so, settings are wrong, you are arcing and creating a non-conductive spot on electrode/workpiece and the machine isn't sensing...
  18. Using a standard taper call out (angle defined),...

    Using a standard taper call out (angle defined), you can only tip the wire perpendicular to wire path/direction.
    You need a four-axis program utilizing U and V call-outs for your application.

    You...
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    I agree with Mr. Pflugger... That is the best...

    I agree with Mr. Pflugger... That is the best machine for the work you describe.


    Jay Crumb
    Advanced EDM, LLC
  20. Replies
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    OMG!!!! Probably using Kerosene as a dielectric...

    OMG!!!! Probably using Kerosene as a dielectric to boot...
  21. Replies
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    Your bad threading stream is a result of the...

    Your bad threading stream is a result of the machine needing service.
    Get Sodick (or a guy like me who works on Sodick) in the shop to run you through the preventative maintenance.
    Actually, I'd...
  22. Thread: EDM Pump.

    by JayCrumb
    Replies
    6
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    1,936

    Is your homemade EDM wire or sinker? I only ask...

    Is your homemade EDM wire or sinker?
    I only ask because you mentioned DI.
    If wire, you'll need the volume and ability to handle high pressure which equals BIG $$$.
    If sinker, you won't need nearly...
  23. Replies
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    I would add that water based fast-hole EDM on...

    I would add that water based fast-hole EDM on carbide leads to a LOT of cobalt depletion.
    If you are looking to use these holes for anything other than WEDM start holes, I would seriously consider...
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    Adjust the tension between your pinch rollers in...

    Adjust the tension between your pinch rollers in the back of the machine.
    This is usually the problem.
    It will take you a bit to get it right.

    If you have spent a fair amount of time adjusting...
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    Your kinda behind the eight ball here... You...

    Your kinda behind the eight ball here...
    You have to think of melting temp.
    Your tungsten workpiece melts at a very high temp.
    The only way you are going to get non-atrocious electrode wear is to...
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