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  1. Replies
    11
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    3,774

    I have a PEEK component with 10 x 2mm holes 37mm...

    I have a PEEK component with 10 x 2mm holes 37mm long, they form a cone with combined angle of 24 degrees so that the 10 holes merge into one hole. I've made these successfully on my Deckel FP1 mill...
  2. Replies
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    4,807

    Is the machining of the problematic cams all done...

    Is the machining of the problematic cams all done on the same machine, or the same type of machine? I'm wondering whether the common factor is the change in machining method rather than the metal... ...
  3. I'm someone who regularly swaps over from 40...

    I'm someone who regularly swaps over from 40 taper to 20mm collets using the adaptor with the spanner flats. The adaptor is usually reluctant to drop out by itself, but a light sideways tap with a...
  4. Squale, Why do you need to cut the end off the...

    Squale,

    Why do you need to cut the end off the tube? If you go the route I suggested, of using an expanding collet - see Expanding collets - Dunham Tool expanding collet
    you will have almost...
  5. Is the tube even parallel? For a given tube...

    Is the tube even parallel?

    For a given tube capacity the size range would be very limited - this is supposing you want this measurement for quality control.

    It wouldn't be difficult to make...
  6. Could be screws for holding replacement teeth in...

    Could be screws for holding replacement teeth in jawbone? They may need to be textured to help the bone grip the screw.

    - Mike -
  7. Replies
    15
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    2,386

    Use alcohol as a cutting fluid, it is the best...

    Use alcohol as a cutting fluid, it is the best for aluminium.

    A plastic squeeze bottle and commercial denatured alcohol, keep it wet. Ideally the chips should be washed out, they will cause the...
  8. Replies
    42
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    14,754

    Separation of argon from air by fractional...

    Separation of argon from air by fractional distillation of liquid air is not very efficient because the boiling point of argon (87.3K) and oxygen (90.2K) are very similar. The process starts by...
  9. Replies
    8
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    2,247

    Could that be for a #30 drill? Without an idea of...

    Could that be for a #30 drill? Without an idea of scale.......

    - Mike -
  10. I'm glad but also sad to see that so many...

    I'm glad but also sad to see that so many appreciate the service McMaster provide. Unfortunately, although my company has had dealings with them for at least 10 years, and they have my credit card...
  11. Replies
    6
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    1,240

    Electrolytic capacitors dry out over time. A...

    Electrolytic capacitors dry out over time.
    A good start would be to replace them all. Anything over 5-6 years old could be shot, depending on the make and how hot the environment.

    - Mike -
  12. Replies
    9
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    3,183

    I bought a 3-jaw and a 4-jaw from Franz Singer. I...

    I bought a 3-jaw and a 4-jaw from Franz Singer. I bought the 4-jaw to avoid using the 4-jaw from the lathe with an adaptor, only to discover that Deckel never provided independent 4-jaws - which is...
  13. Replies
    16
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    2,052

    There are a variety of ER collet extensions with...

    There are a variety of ER collet extensions with parallel shanks available, I used an ER11 one from Bison with a 1/2" shank 160mm long to make a grinding/light milling spindle. A couple of light duty...
  14. Replies
    8
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    1,453

    Does Turcite contain Teflon? I'm guessing it is a...

    Does Turcite contain Teflon? I'm guessing it is a mixture of teflon and a harder plastic, as are most of the Rulon versions. Teflon has a high coefficient of expansion and in addition it undergoes a...
  15. Replies
    16
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    13,764

    ...but only if you are working as a plastic...

    ...but only if you are working as a plastic molding/ assembly process worker, or in design.

    If you are a mold maker/toolmaker, don't look there for a job, although it stands to reason someone,...
  16. Replies
    16
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    13,764

    Well, we occasionally read on PM of molds made in...

    Well, we occasionally read on PM of molds made in China because it is so cheap, having to be modified by PM members because they don't work for some reason. I wonder if any of those are molds from...
  17. Replies
    13
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    2,254

    From what I read somewhere, the Rio negotiator's...

    From what I read somewhere, the Rio negotiator's sin was to collect public information and synthesize it to assist their negotiations. Adding two and two to make four is regarded as illegal..... I've...
  18. Replies
    16
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    13,764

    I've not said they aren't a great piece of...

    I've not said they aren't a great piece of design, because they are really good, and in the tests they show on YouTube they come out almost without a scratch and with the contents undamaged.
    ...
  19. Replies
    16
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    13,764

    The boxes I have show a number of molded labels,...

    The boxes I have show a number of molded labels, one has "www.pelican.com", another is the triangular recycling label and the third is "automatic purge valve". The tag has a USA flag and "Made in...
  20. Replies
    16
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    13,764

    Where are Pelican boxes manufactured?

    I've been buying small and very nicely made plastic boxes from Pelican for some time now. The ones I buy have tags attached with a "Made in USA" label, but the actual plastic moldings have nothing...
  21. Replies
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    6,206

    A few square inches isn't important? Remember the...

    A few square inches isn't important? Remember the DeHavilland Comet, the first plane to reveal the fatigue problem? A few square inches at the corners of the windows caused stress concentrations and...
  22. Replies
    87
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    13,749

    They didn't have an FP4 with all the trimmings...

    They didn't have an FP4 with all the trimmings back in 1914, nor carbide tooling. What a job it must have been for them then! I presume those are blind cylinder bores? Any idea how much a...
  23. Replies
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    3,394

    The price doesn't look too unreasonable to me for...

    The price doesn't look too unreasonable to me for a machine of relatively recent vintage, but that would have to be AU$ and in Australia. Rarity is certainly a problem if spares are unobtainable, and...
  24. Replies
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    3,394

    Don, When I check that ebay posting there are...

    Don,

    When I check that ebay posting there are three pics, two the same. Why not have one with the vertical head rotated away to show the horizontal spindle? You'll accuse me of nitpicking, but if...
  25. Replies
    26
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    17,870

    Making a cylindrical square isn't quite as easy...

    Making a cylindrical square isn't quite as easy as David describes. Because the spindle of a lathe can pump in and out swashplate-fashion if the thrust bearing is imperfectly perpendicular to the...
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