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  1. Replies
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    What I was trying to say is that ,yes, as we are...

    What I was trying to say is that ,yes, as we are adding renewable energy generating capacity to the grid, there also needs to be a corresponding increase in reserve/backup energy capacity. This is...
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    This is the foundational issue: Grid...

    This is the foundational issue:

    Grid generating capacity must be equal to or greater than the grid load.

    The grid generating capacity can be made up of any combination of available energy...
  3. If this is an optical application flatness is...

    If this is an optical application flatness is very much a key parameter.

    In optics that are used for mirrors or reflecting surfaces, even though the surface is curved, the surface needs to be...
  4. I suspect that it will take a lot more then that.

    I suspect that it will take a lot more then that.
  5. I think you need to explain the project in better...

    I think you need to explain the project in better detail. The 2micro surface finish is one thing but your description sounds like it also has optical properties. That would imply that the surface...
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    I would add that the new sub $1000 inverter...

    I would add that the new sub $1000 inverter welders need to be treated as throw aways once the warranty is up. Repair will not be justifiable.

    I have a Miller Invision456P Mig rig, a Hobart...
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    I also dug through the info some more. I do see...

    I also dug through the info some more. I do see that they have been issues several patents on the stator design. I'm not so sure if the motor is as revolutionary as the hype article claims.
    ...
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    It is likely Bath but half the US subs were also...

    It is likely Bath but half the US subs were also built in Manitowoc Wi.
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    I assumed snake oil due to the presentation. No...

    I assumed snake oil due to the presentation. No facts but a lot of hype.
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    Wouldn't it be easier to just run the motor in...

    Wouldn't it be easier to just run the motor in reverse instead of taking it a part?
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    I'm biased but I have not seen the quality issues...

    I'm biased but I have not seen the quality issues that are being mentioned and I have seen a considerable number taken out of the crate. As far as the spindle horsepower, the Haas is rated at 30hp...
  12. There is a difference in motor design between AC...

    There is a difference in motor design between AC and DC.

    You can use the DC motor as you intend to slow rotation down but the braking force is a function of the motor current going through the...
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    I thought that that was a safety feature so that...

    I thought that that was a safety feature so that the driver would know that the wipers were turned on. If the wipers didn't move, you knew that there was something wrong.:)
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    If you do much job shop work, then I think the...

    If you do much job shop work, then I think the Hurco conversational control would be a real advantage if you are going to program at the control.

    If you are still going to do everything in your...
  15. The problem with your simplistic approach is that...

    The problem with your simplistic approach is that you need a way to monitor motor commutation. In other words, a feedback device.

    AC motors controlled with a VFD in vector mode accomplish this...
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    There was/is the question if Japan would have...

    There was/is the question if Japan would have surrendered unconditionally and for that matter even if they would surrender at all.

    We need to keep some things in perspective. We had fought some...
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    Did you actually read the article? If you crunch...

    Did you actually read the article? If you crunch the numbers and dig into the report, the $.02 is what the power companies are paying the windpower producers. That is not there true cost of...
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    There was an old Tv Sci-fi series called Terra...

    There was an old Tv Sci-fi series called Terra Nova. Lasted only one season but they had a 4wd vehicle which has a strong resemblance to the Tesla pickup.

    271640
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    The numbers you have are rather bogus. $18-$25 in...

    The numbers you have are rather bogus. $18-$25 in Cal. is not a very good wage, can't live on it.

    A nurse making $50/hr- straight time- non-weekends is not a two yr. degree. That is a 4-6yr. deg...
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    According to NOAA it is 95,471mi.

    According to NOAA it is 95,471mi.
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    The problem with the horses are that they eat...

    The problem with the horses are that they eat every day, if they are worked or not and that is why thy are nicknamed as hay burners.

    The hay consumption rate of a horse was significant enough that...
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    The underlying issue is economics. Much more more...

    The underlying issue is economics. Much more more Helium could be captured if the economics supported it. The current shortage is a combination of reduced distilling capacity, some which has been...
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    Since you are having variation in the seal...

    Since you are having variation in the seal batches, I would be looking at other things that affect the seal performance.

    Things to check are the bore ID. Is it concentric? Is the seal always being...
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    You do need to fix the missing bolt issue but do...

    You do need to fix the missing bolt issue but do you know that you also have to shift the backgear handle on the right side of the head.

    If you shift the one without the other, it will cause the...
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    The "plain" bearing is should be treated as a...

    The "plain" bearing is should be treated as a hydrostatic bearing. The clearance will be greater at a static condition than when it is running.

    Peter's reply is spot on as having the bearing...
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