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Type: Posts; User: Mark Rand

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  1. I thought the major problem was that they used...

    I thought the major problem was that they used essentially pure O2 at 14.7psi instead of the normal partial pressure, which is nearer 3. I believe that the pressure was reduced to 5psi after the...
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    The reason that the SDS for the paint doesn't...

    The reason that the SDS for the paint doesn't show that it's all that dangerous is because the paint isn't all that dangerous. The isocyanate hardener is what does your lungs in. That's why you use...
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    Polane 2K paints are isocyanate...

    Polane 2K paints are isocyanate polyurethane/acrylic based, or epoxy based according to which variety you purchase:- The same as other 2K paints including all auto paints apart from vintage...
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    It's in Birmingham's Science Museum, not far from...

    It's in Birmingham's Science Museum, not far from where it was built.

    In contrast to Hero's Aerophile, this engine still exists in it's original condition.

    If you want to see the oldest steam...
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    Key and re-clean the surface, then respray. It's...

    Key and re-clean the surface, then respray. It's what the car body shops do. Obviously prime/high-build if there are bare bits.
  6. Grok Stranger in a strange Land...

    Grok

    Stranger in a strange Land. by Robert Anson Heinlein
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    I think that EG has most of the reasons.

    I think that EG has most of the reasons.
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    Wasn't that alleged to be the reason that they...

    Wasn't that alleged to be the reason that they got paid the big bucks? :crazy:
  9. Oh fuck!...

    Oh fuck!...
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    Fly press head??

    Fly press head??
  11. Hardinge use PTFE on the HLV-H carriage. Could it...

    Hardinge use PTFE on the HLV-H carriage. Could it be similar to that?
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    When I was in the Site test section, the union...

    When I was in the Site test section, the union did an anonymous survey of pay and grade for all the engineers in the company every year. We discovered that we averaged £2,000 per year less than the...
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    It depends quite a lot on the materials used in...

    It depends quite a lot on the materials used in the screw and nuts. Bronze nuts as used on Bridgeports, have a tendancy to wear the screw severely. cast iron nuts as used on some other machines (like...
  14. Colour me old fashioned (but not ancient. No...

    Colour me old fashioned (but not ancient. No COBOL or FORTRAN here)

    I thought HP Rocky Mountain BASIC was brilliant.
    Pascal/Modula/HP Modcal were structured and fast. when tweaking sub mS data...
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    It's nice to see sense talked about downstream...

    It's nice to see sense talked about downstream switching with inverters/VFDs instead of the more common hysterical nonsense.

    :cheers:
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    Domenic cum stain is leaving No10 at the end of...

    Domenic cum stain is leaving No10 at the end of the year. Pity he's been allowed to damage the UK for 20 years until this point.
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    Might sound petty and nitpicking but:- It...

    Might sound petty and nitpicking but:-

    It doesn't matter who made it or where. It's not worth using on a load if it has not been tested.
  18. I find 9" swing over the carriage and 18" between...

    I find 9" swing over the carriage and 18" between centres covers 95% of what I want to do. It's quite happy with an 8" 4 jaw and a 10" faceplate.

    Horses for courses.
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    To be fair, wear on the Reeves drive sheaves at...

    To be fair, wear on the Reeves drive sheaves at the most commonly used speeds will also affect the linearity of the speed indicator's readout.

    Don't most HLV* users adjust the speed and feed to...
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    With most feed screws and lead screws that's...

    With most feed screws and lead screws that's about as close as you can get. The thread form of the screw and the nut may not be perfeclty matched due to wear and the alignment of screw and nut may...
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    I think the lathe was offended when you swiped...

    I think the lathe was offended when you swiped left on it.
  22. The top slide screw threading quick retract lever...

    The top slide screw threading quick retract lever is missing. Could be just missing or there could be issues with the mechanism.

    The cross slide power feed clutch cam mechanism has been replaced...
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    That all sounds good. I think the cast iron...

    That all sounds good. I think the cast iron rounds may be less work than the 'fabricated' lap. (He said the after one whole week of experience :nutter:)

    I'm using an autocollimator. I did do one ...
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    I can't help with SiC abrasive, but I was lapping...

    I can't help with SiC abrasive, but I was lapping my 600x900mm surface plate last week, using a 300x450 cast iron plate as the lap. With that lap size, 40-60µm diamond grit cuts very fast, 30-40µm...
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    Ah how sweet! It's a baby Craven, doesn't even...

    Ah how sweet! It's a baby Craven, doesn't even have a seat on the toolpost. :D
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