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  1. Replies
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    . . when did you clean scroll last ? dried...

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    when did you clean scroll last ? dried grease and chips on scroll and it will vary. some will spray in non residue electrical contact cleaner till dripping solvent / cleaner working scroll back...
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    809

    . . i have seen carbide drill bit that dia and...

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    i have seen carbide drill bit that dia and length, drill over sized holes over .040" oversize cause drill bit end was damage on one flute.
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    there is deflection then there is vibration...
  3. a lubricated oring is often used to hold parts in...

    a lubricated oring is often used to hold parts in place or resist parts sliding apart.
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    when oring is dry often parts will not slide together. obviously spitting on it can be messy and a regular...
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    load rating depends on how far out on forks the...

    load rating depends on how far out on forks the load is. AND how high the load is off the floor
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    then there is when picking max load the rear wheel is lightly loaded and steering or lack of...
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    693

    . many old machines have hugh vast large amounts...

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    many old machines have hugh vast large amounts of wear. doesnt matter if when new it could hold .0001" tolerance. obviously some old machines might have trouble holding a .0100" tolerance.
    ....
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    . 1) depends on tolerances of part . 2) stress...

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    1) depends on tolerances of part
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    2) stress relieving in bulk doesnt cost that much. that is when furnace is filled to max with parts as opposed to only one part the cost per part to stress...
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    2,209

    . most of the time the hold down strap clamps...

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    most of the time the hold down strap clamps will permanently bend well before you reach max stud torque in my experience. usually you use more (many) than minimum amount of straps and stud/tee...
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    6,898

    you cannot work for 2 different companies in the...

    you cannot work for 2 different companies in the same business at the same time especially if unreported.
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    even a machinist if monnlighting working at a competitors machine shop 99% of time the...
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    673

    . milling fixture can be inspected every second...

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    milling fixture can be inspected every second a billion times a year. still when bolted down to a machine it needs to be check then and there if tolerances require it. usually part of a setup...
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    6,898

    its the working unreported to 2 different...

    its the working unreported to 2 different organizations, companies, countries, etc that pissed the government off
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    most places do not allow anybody to be also working for a competitor. I have seen...
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    . most milling fixtures when tolerances require...

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    most milling fixtures when tolerances require it are checked by probing or indicating. even fixture keyed to table slots if tight tolerance it might need a fine adjustment. I probably done a few...
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    experts are hired from all over the world. many...

    experts are hired from all over the world. many Chinese scientist work for USA companies, many educated people born and educated in other countries live and work in the USA for USA companies.
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    6,321

    you ever measure position of hole thats done with...

    you ever measure position of hole thats done with a dull spot drill especially if its a long spot drill ??
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    dull spot drill can make a off position spot easily. when .005" off it often goes...
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    6,321

    almost everything is cheaper by the ton. that is...

    almost everything is cheaper by the ton. that is if you buy in larger quantities price goes down considerably.
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    you buy 1000 at a time and dont be surprised you pay less than 40% the cost than if...
  15. Replies
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    2,505

    . the technical knowledge and experience is...

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    the technical knowledge and experience is considerable. some web site offer tools and some help. usually better to buy a turnkey setup. somebody designs, builds, tests equipment proving its...
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    4,092

    just like made in Switzerland or made in Germany,...

    just like made in Switzerland or made in Germany, many items have some parts and materials possibly made in other countries
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    metal comes from almost all countries. some alloys like nickel, chrome,...
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    . 1) yes sudden tool failure can easily damage...

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    1) yes sudden tool failure can easily damage part and the machine costing easily over $10,000. worth of damage if not careful
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    2) the most important factor usually is length tool sticks out of...
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    i have repaired fire escapes that were 100 years...

    i have repaired fire escapes that were 100 years old and in bad shape. we were told any handrail needed to hold over 200 lbs continuously in any direction
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    obviously if a group of people on fire...
  19. . many rust preventatives are a spray of mineral...

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    many rust preventatives are a spray of mineral spirits and asphalt tar which gives in general a non sticky wax like coating. usually dont want any or not much oil in a rust preventive cause it...
  20. . cross vial is needed to adjust the sideways...

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    cross vial is needed to adjust the sideways movement of level vial. when on a cylinder and you roll level if vial not parallel to Vee base the vial bubble will change a very large amount. if level...
  21. screw on a piece of precision ground flat stock...

    screw on a piece of precision ground flat stock to the Vee bottom level. not going to take long for a couple M5 or smaller screws
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    obviously until any technology is cost...

    obviously until any technology is cost competitive it wont become common
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    when spray metal torches came out they said it would become common to spray metal to shape. $30/lb just for spray powder...
  23. only micron size ultra fine grit would normally...

    only micron size ultra fine grit would normally get circulated. but rust dust contamination should be rinsed and blown off
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    doesnt usually hurt to rinse with clean solvent especially for bearings
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    . Roller bearings can take more load or ball...

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    Roller bearings can take more load or ball bearings are not heavy duty
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    . i had a lathe i had hand tapped a 1.5" 12tpi...

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    i had a lathe i had hand tapped a 1.5" 12tpi thread on and had lathe headstock locked. the force required damaged the pin in gear holding headstock from turning. using a 18" wrench on the tap was...
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