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  1. Hey, that's super! Yes, the currents do tend...

    Hey, that's super!

    Yes, the currents do tend to balance out under load more than at idle. The currents you mentioned of 5, 4, and 3 A are acceptable, the way an RPC works you have to expect an...
  2. The voltage is due to getting closer to resonance...

    The voltage is due to getting closer to resonance with the supply frequency (idler motor inductance plus "balance" capacitance). Means usually that you have too much capacitance in place.
    ...
  3. Inventors come in different types. One I made...

    Inventors come in different types.

    One I made a good bit of profit from. He was not a designer, and knew it. I simply did the design work, AND CHARGED FOR IT. Made, or had made, the prototypes...
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    Dunno if the rules are not enforced. Seems as if...

    Dunno if the rules are not enforced. Seems as if they are.

    Sometimes the "spammer" is not obviously a spammer, someone with a fair number of posts, and is not actually spamming. I had two...
  5. Thanks, I assumed that the pin supplied the...

    Thanks, I assumed that the pin supplied the "float", but that could have been wrong. It sounded really crude, but they were different times.

    I'd be interested in what the articles say, and...
  6. Dude......... I use the things, have no fear. ...

    Dude.........

    I use the things, have no fear. Setscrews and bushings as needed, in a radial only floating holder if it seems appropriate. Or an adjustable holder. Depends on what is left after...
  7. There is no "problem", I either hold them in the...

    There is no "problem", I either hold them in the soocket as-is, or cut them down if needed if they are too long with the extra shank that has the hole.

    I am trying to discover how the holder...
  8. Bump....... No takers?

    Bump.......

    No takers?
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    If you do not need the neutral, no reason to run...

    If you do not need the neutral, no reason to run it.

    If you would not pull the wire if wiring it without the buss duct, why would you need the extra conductor?

    I do not think it would be good...
  10. The difference between that and most other...

    The difference between that and most other floating holders I see such as those in the B&S catalog, is that it allows both a radial movement AND a "tilt". The slop in the pin hole allows the reamer...
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    That would be fine, but that point may be...

    That would be fine, but that point may be unobtainable, depending on the idler. if you CAN get to the idler star center, that would be fine, and can help as described. Note to others (Johansen...
  12. How was the hole in a stub reamer used in a floating holder?

    I have a bunch of stub reamers for use in the Logan bed turret. All have a hole through the shank, across on a diameter.

    I found in an old machinist reference (from 1940) a comment that the hole...
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    This must be a joke...... 'Cuz oilite has to...

    This must be a joke......

    'Cuz oilite has to run faster to actually work. That's why the lever application did not work.

    They are used in motors all the time at 1750 and 3450 rpm. They need...
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    The picture is much more of a "heroes of Soviet...

    The picture is much more of a "heroes of Soviet labor" picture than something from the West. I can see it being done in a Soviet factory, no problem.

    Keep the load oriented, maybe a bit of...
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    With regard to grounding.... First, you...

    With regard to grounding....

    First, you absolutely cannot ground the X0 connection, because the output of a phase converter is NOT balanced to ground, and this is an autotransformer, which is not...
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    Heck the whole Mythbusters thing was pretty...

    Heck the whole Mythbusters thing was pretty bogus.

    I caught them in stupid things that made their "conclusions" laughable and totally invalid.

    Ones I recall:....

    They were doing something...
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    That is true, most likely, but the advantage of...

    That is true, most likely, but the advantage of the Rivett units is that they take the collet in the spindle with no extra parts involved. That is quite accurate if the collet socket is accurately...
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    When you overspeed at max voltage, you lose...

    When you overspeed at max voltage, you lose torque, but typically maintain power for a while (power, torque and speed are inter-related). You lose torque because the V/Hz is dropping, so the current...
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    There MAY not be any difference between a 230 and...

    There MAY not be any difference between a 230 and a 460V motor as far as insulation, just due to economies of scale and using the same for all. One does not generally KNOW that.

    In the...
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    The motor ALWAYS receives the full voltage of the...

    The motor ALWAYS receives the full voltage of the VFD, it just gets that in narrower spikes if set to a lower voltage. So you always want to rate the motor for the VFD nominal voltage.

    You also...
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    You are going to need to set the control source,...

    You are going to need to set the control source, which is the keypad now.

    Look at the group 00 parameters, page 4-9. Default is "0" for keypad.

    You may need to set some more things there.
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    The is not a "surging", it sounds like a "beat...

    The is not a "surging", it sounds like a "beat note", and may or may not be bearing related in terms of possible failure.

    In any case, I concur that it is probably mechanical. It could be a beat...
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    That's how you GET "that skilled". You DO...

    That's how you GET "that skilled". You DO whatever comes up that needs doing, as long as you have time. Study up a bit, and have at it.

    Weren't nobody born knowing how to do this stuff.
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    You generally find that sort of unicorn on your...

    You generally find that sort of unicorn on your lathe.

    My small mill takes 3MT, and I made several arbors for it. I used 4140PH, but you can use 1144, or just plain CRS if you want, it won't...
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    The limit may be hard coded. The only settable...

    The limit may be hard coded. The only settable thing I found seems to be for the resistor cut-in voltage. C0988.

    You can try setting that as high as you can get away with, but the issue is...
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