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Type: Posts; User: TDegenhart

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  1. Replies
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    The duct will have to be sized for boundary layer...

    The duct will have to be sized for boundary layer development.

    Tom
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    Nice........14 Tom

    Nice........14
    Tom
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    1,616

    Little OT - How areFord's aluminum trucks holding up?

    Title says it all. Ford made a BIG splash about aluminum body work(?), but have been very quite lately.

    Tom
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    The flow chart for plastics is interesting but...

    The flow chart for plastics is interesting but there is a caveat. This would apply to un-filled, non-reinforced material. Particularly, the flame test for flammability. A lot of plastics are...
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    729

    Its stress that cause polycarbonate to craze. As...

    Its stress that cause polycarbonate to craze. As long as there is no stress, it holds up well. The smoke test is the way I have always seen it identified.

    Tom
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    As you say light passes. Too much and the gib...

    As you say light passes. Too much and the gib will heat and expand into the wheel.

    Tom
  7. Replies
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    Don't get too carried away with filtration and...

    Don't get too carried away with filtration and guarding, else you may as well just use a large NEMA 12 enclosure with no openings.

    I was faced with a similar problem back in the 1970's. GE was...
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    You could forge the end. Tom

    You could forge the end.

    Tom
  9. Replies
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    The way to handle your complaint is to make the...

    The way to handle your complaint is to make the cover plate into hat shaped by notching the corners and bending the flanges down. Make the size such that there is a 1/4 to 1/2 inch gap around the...
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    Why I can''t answer. I would use a transformer...

    Why I can''t answer. I would use a transformer for 200 volts. Motors, among other magnetic devices, are designed to operate at 10% overvoltage. 245 volts is outside of this tolerance band and can...
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    So what you want is a $35 school microscope. The...

    So what you want is a $35 school microscope. The lenses and the stage are what makes a toolmaker's microscope. The rest is just to hold these two items.

    Tom
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    Looks like the second one that gave the small...

    Looks like the second one that gave the small values is based on a single conductor in free air.

    This is typical problem that can happen with you use cookbook calculations, formulas or tables that...
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    reckon it's defrosted by now? Tom

    reckon it's defrosted by now?

    Tom
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    Anyone check out this guy's shop? Waayy too...

    Anyone check out this guy's shop? Waayy too small for all the stuff listed. Driveway doesn't look suitable for a large 18 wheeler. Looks like he is just trying camp onto someone else's for sales...
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    If the OP is truly speaking of fine blanking,...

    If the OP is truly speaking of fine blanking, that's another wrinkle.

    Tom
  16. Replies
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    Not unusual for electronics to get flaky in hot...

    Not unusual for electronics to get flaky in hot weather, particularly older machines.

    Humidity is not important. Humidity is important for people or swamp coolers as it affects the evaporative...
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    I suggest a change in posting rules. Anyone...

    I suggest a change in posting rules.

    Anyone is free to post for sale items at no charge, however if the sole purpose is to sell, then the poster must agree to accept the highest bid with no...
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    If you can bake them, any embrittlement is...

    If you can bake them, any embrittlement is reversible. If they are mission critical, replace them.

    Tom
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    Several issues. Regarding the venting, I would...

    Several issues. Regarding the venting, I would recommend a plate spaced 1/2" over the top to prevent junk from falling into the enclosure. Just having openings would violate the code and could...
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    What happened to Steven? Tom

    What happened to Steven?

    Tom
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    I have bought tools from Victor. They have a lot...

    I have bought tools from Victor. They have a lot of import stuff that were hard to find elsewhere. Gear cutters, horizontal mill cutters, etc. Ok for a onesy-twosy job but certainly not...
  22. Looking for a gunsmith in the St. Charles, Geneva, Batavia area

    Friend has a .22 Remington from the 1930's that needs work. Told him I would ask the question. Gun is a pump. Problem is the bolt will not lock.

    Tom
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    Ed, if and when you get serious about a boiler,...

    Ed, if and when you get serious about a boiler, make sure you understand COMPLETELY how to make/use one. They seem simple but can be deadly if you don't handle them correctly.

    Tom
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    I was given a sage bit of advice many years ago,...

    I was given a sage bit of advice many years ago, that when you move to a new community, take a loan for a nominal amount, then pay it back on a regular basis. The cost is the interest but by doing...
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    This would be very annoying to someone like...

    This would be very annoying to someone like myself that don't do a lot of design and use the products more as sketch pads than serious design tools. Back before Draftsight was available, I...
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