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Type: Posts; User: claya

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    What material? What settings? Sent from my...

    What material? What settings?

    Sent from my SM-G975U using Tapatalk
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    I have cut into headers before (2-3"), and...

    I have cut into headers before (2-3"), and Considered making a hinged header.

    The better ideas are move the header up if possible. It's not really that hard if there is room. Good contractors do...
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    Try 30years from home. Upside: I have not had a...

    Try 30years from home. Upside: I have not had a shop/office rent payment ever. But the real downside has been I cannot ever leave work at the office/shop. So my hours are 6am to Midnight. If Only I...
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    I am not very familiar with how to use the caps....

    I am not very familiar with how to use the caps. The Eltee book has very little info on them, other than the example settings for carbide.

    For Niobium and Inconel finishing, what cap range...
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    The machine uses a capacitor bank for carbide....

    The machine uses a capacitor bank for carbide. Bud Guitrau said not to use the capacitors on Niobium.


    Sent from my SM-G975U using Tapatalk
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    The Eltee is a 30A machine. Is it true that...

    The Eltee is a 30A machine.

    Is it true that higher amperage means lower electrode wear?

    Sent from my SM-G975U using Tapatalk
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    Fanuc wire machine for sale

    I know of a 95 Fanuc Robocut a0B wire for sale. Fanuc 16-W control. One owner. Comes with a PhasePerfect 10HP. Northern CA, under power. Really nice condition, relatively low hours.
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    I suspect the far right knobs are pulse flushing....

    I suspect the far right knobs are pulse flushing. Upper is work off, lower is time down. Pulse flushing is like a plunger when you don't have good flushing through the electrode. Others have...
  9. How did the dielectric changeover go? I need to...

    How did the dielectric changeover go? I need to replace a solvent based (EDMS-25) to a semi-synthetic. Cleaning the tank is a collossal task, as it is buried in the most inaccessible spot in the...
  10. Thread: Niobium anyone?

    by claya
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    9,694

    Jim, You have any experience, or resources...

    Jim,

    You have any experience, or resources with sinker EDM of niobium? I suspect tantalum is a close comparison.

    Also, your PM mailbox is full.

    Sent from my SM-G975U using Tapatalk
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    Bud, I have your book.. thank you for writing...

    Bud,

    I have your book.. thank you for writing it.. I am a 60yr old engineer/machinist, very new (1year) to sinker. And am slowly climbing the sinker steep learning curve. Book helps a lot.

    Can...
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    Sharp is a large Japanese machine tool company....

    Sharp is a large Japanese machine tool company. Have you tried getting a machine manual from them? The manual is the best source for Machine burn settings. Most shops develop in-house settings. But...
  13. How do you know when it is time to change...

    How do you know when it is time to change dielectric?. My Eltee came with a tank full of dielectric, so I have no comparison of new vs old.
    Has anyone have experience with Sinksyn-1 synthetic?...
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    "Because the upper and lower wire support arms...

    "Because the upper and lower wire support arms move independently, this process approximates some three dimensional shapes, including crowned tooth surfaces, low helix angle helical gears, and bevel...
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    Wire edm helical gear

    Can anyone wire cut a shallow helical gear profile? Reading it can be done on a wire with independant axis wire guides, but need to find someone who has done this before.
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    240V to 480V

    Using the 5%+ taps, I am pulling more amps on the primary side than my Panel breaker can handle. So while I am waiting for a larger breaker, I dropped the output taps down to the lowest (5%-). Idle...
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    240V to 480V

    Got the Marelco transformer. Is it better to wire it for the higher end of the 400v +5%? Also should I try to match the 3 phases as close as possible, or will the compressor even care? There is about...
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    The VSD controller is buried deep inside the...

    The VSD controller is buried deep inside the motor housing, so getting a photo is difficult.

    Added info, that might have some impact. We run a Matsuura MC-660vg off the 40hp RPC. It has a...
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    VSD is in the schematics. The drive motor, ...

    VSD is in the schematics. The drive motor, solid state relays, etc are 380v-460v 3ph.

    Sent from my HTC6545LVW using Tapatalk
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    That solves the motor issue. What about the VSD...

    That solves the motor issue. What about the VSD that expects 380-460v?

    Sent from my HTC6545LVW using Tapatalk
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    Control panel, and 15hp motor nameplate...

    Control panel, and 15hp motor nameplate attached. That is a contactor and some solid state relays for a fan. This is a VSD compressor, so the 15hp motor is connected directly to the drive. I fear...
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    40hp RPC. 15hp (VSD) compressor motor. Yes, I...

    40hp RPC. 15hp (VSD) compressor motor. Yes, I am aware of the 2x RPC HP requirement. Will get pictures of the motor control, etc..

    1ph: 125a.

    I thought one of the side benefits of a...
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    Measured voltages: 1-2: 241.8v 2-3: 245.8v...

    Measured voltages:
    1-2: 241.8v
    2-3: 245.8v
    1-3: 246.2v
    1-g: 120.2V

    The above is the 3PH output of the Rotary phase converter. The nameplate on the compressor says 480-380/3/60.
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    Agreed. Will be taking measurements tommorrow....

    Agreed. Will be taking measurements tommorrow. My electrician has a lot of commercial experience. Just limited with buck/boost, apparently.

    The compressor nameplate is 480v-380v/3/60. Nothing...
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    240V to 480V

    Can I use THREE 1Ph transformers like this to get from 240V Delta to 480V WYE? I only barely understand AC electrical, obviously.

    The smallest 240V to 480V 3Ph transformers I have found thus far...
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