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  1. Replies
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    You don't have much friction area. I'd be...

    You don't have much friction area. I'd be tempted to put in some blocks against that "spigot" to help hold it, or flip it and set it on a larger ring.

    But, all it has to do is work for a couple...
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    If the rotab has a smooth ground surface, then...

    If the rotab has a smooth ground surface, then either lay down a sheet of thin paper first, or rough up the surface a bit. Either will give more "grip" for a given force down. With the stud and...
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    Good idea from the safety point of view.. ...

    Good idea from the safety point of view..

    Problem is, "V^2" goes up a lot faster than "m". The payoff for more speed is just way better, especially if weight is a consideration, and it usually...
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    Or get the t-slot nut right up to the part, so a...

    Or get the t-slot nut right up to the part, so a lot of the force is just compression on the slot material.
  5. Many still have an inductor.... but it is before...

    Many still have an inductor.... but it is before the DC link cap, so spikes are absorbed.
  6. Replies
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    Yah think? No difference except voltage..... ...

    Yah think?

    No difference except voltage.....

    EU has 230V and neutral. US has 120V and neutral. Same system, different voltage, derived from 3 phase instead of center tapped single phase. ...
  7. I cannot think of ONE reason why running the VFD...

    I cannot think of ONE reason why running the VFD with nothing connected could be an issue. I have done this a lot, when debugging new designs, and it just is not a genuine problem for any modern...
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    The "sat for xx years unused" (where there are...

    The "sat for xx years unused" (where there are mice etc) could not have anything to do with it, of course.........
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    The link originally was thought to be aluminum...

    The link originally was thought to be aluminum cookware. And it is bad to cook acidic stuff in aluminum, but not due to Alzheimer's.

    As far as I know, just about all of it has been debunked. ...
  10. Replies
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    OK, then in that case the reversal theory falls a...

    OK, then in that case the reversal theory falls a bit short. It was sounding like there was another issue, but that was probably a misinterpretation of what was said, or conflating what YOU said...
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    It's a little surprising that the GFCI trips...

    It's a little surprising that the GFCI trips before the breaker, but they are intended to trip fast, so it is possible. Dead shorts usually trip a breaker pretty fast also.

    Yes, that sort of...
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    Okee.... Your post has it at .005". I suspected...

    Okee.... Your post has it at .005". I suspected you wanted another zero.

    You could always stick a better vial in the 98..... that has been done before...... Saves a fair bit of fab if you can...
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    Not SUPPOSED TO care. Depends what is...

    Not SUPPOSED TO care.

    Depends what is connected where. There may be things connected hot to neutral and neutral to ground, like capacitors. The would not cause an issue if correctly polarized,...
  14. Yep, that is a good way, and it ends up looking...

    Yep, that is a good way, and it ends up looking for other faults as well, like failed capacitors, etc, etc. It does evade the usual "bridge two power terminals" solution, which will not help.
    ...
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    If that is the true number you want, a Starrett...

    If that is the true number you want, a Starrett 98 would do you. 0.005"/12", and considerably smaller width in the 6" size..

    It does have a semi-circle recess in the bottom, but it takes up only...
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    Out of that 2K bucks, save enough for SOME kind...

    Out of that 2K bucks, save enough for SOME kind of generator.

    There will be times when you need to recharge. Assuming you are running lead-acid batteries now, as most do, you will NOT want...
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    Pretty common to do that for small loads on a...

    Pretty common to do that for small loads on a machine.

    ALL power is tapped off 3 phase, so, yes. If you have several such separate loads, it is best to use different wire pairs (phases) for...
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    Even of you DID have parts missing? Hmmmmm.........

    Even of you DID have parts missing? Hmmmmm......

    Yes. it has been done to control just two of the three legs. Used to be common. and it is not so horribly unsafe, there are disconnects to fix...
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    OK, I have done a bit of this before. 2...

    OK, I have done a bit of this before.

    2 issues...

    first is direct noise from a machine.

    second is noise reflected from walls

    For the first, you put absorbing material between the machine...
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    He's down the coast, look it up. In the "thin...

    He's down the coast, look it up. In the "thin part" along Canada.

    That's still up at Hudson Bay type latitude, but well below the circle. Like I said, think North Scotland, Orkneys maybe.

    On...
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    The big problem with the numbers you have shown...

    The big problem with the numbers you have shown is the recharge rate. The 1500 W of panels is small.

    The more interesting number is the battery capacity. That sets your run time per day, and...
  22. From what I see, it is first class. More pics...

    From what I see, it is first class.

    More pics please.
  23. Replies
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    And, at 2 HP, the NEC wants a "motor controller"...

    And, at 2 HP, the NEC wants a "motor controller" complete with an overload sensor that cuts power if an overload beyond it's cut-off rating occurs.. Normally all that is wired to a contactor. At...
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    If you have 240V single phase, I would use it...

    If you have 240V single phase, I would use it directly if you can.

    Adding VFDs and using 3 phase is a way to avoid inrush, and may be a good idea if you have to. The efficiency will not be too...
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    Sounds like the relay is in fact not releasing. ...

    Sounds like the relay is in fact not releasing. That may be due to it being stuck, or due to the (probably somewhere in there) voltage relay not releasing the capacitor relay when the RPC has come...
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