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  1. Excellent response from You. Now, critical test...

    Excellent response from You.
    Now, critical test ..
    Has that distributor ever made one manufacturer or inventor wealthy and successful, or ever sold a lot of product profitably ?
    Ask them for a...
  2. Replies
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    1,069

    I understand the holes are through-holes. Get a...

    I understand the holes are through-holes.
    Get a stepped gage made in suitable optical-qty material, in 0.01 mm or 0.001 mm steps as needed.
    Pyrex, any of the typical astronomy materials.
    Wont cost...
  3. To OP: You said in contact with owner and good...

    To OP:
    You said in contact with owner and good relations.

    Electroplate with whatever brew.
    Ream suitably undersize.
    Charge suitably for next set.

    Explain all 3 to owner, up-front.
  4. Happy to help. Think I have relevant experience....

    Happy to help.
    Think I have relevant experience.

    Most of my advice is likely to taste bad.

    -
    Material wont matter.

    -
    Do a costing.
  5. Replies
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    On a thread in "Practical Machinist -general",...

    On a thread in "Practical Machinist -general", non-cnc, lathes will have limited speed, for good sfpm in steel.

    So steel parts smaller than about 3/4"-1/2" D tend to have threads that are "torn"....
  6. Lots of good advice, imho. To OP: Since You...

    Lots of good advice, imho.

    To OP:
    Since You seem to have sufficient power to run 100 HP, most of the inrush current problems and scares mentioned are probably non-issues, if You just have any...
  7. Replies
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    33,857

    1. No. Absolutely not. Every single ac...

    1.
    No.
    Absolutely not.

    Every single ac brushless servo in the world, and every single stepper before that, will output full rated torque 24x7 for about 10 years before failing.
    At 0 rpm....
  8. Em.. to OP / Vulcan .. do You have one...

    Em.. to OP / Vulcan ..
    do You have one functional prototype ?

    Can you make a test cut and a test part ?
    Do you have a working spindle prototype ?

    Does your proposed controller support inverse...
  9. Replies
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    1,282

    Just an idea. Maybe turn the final cut to...

    Just an idea.

    Maybe turn the final cut to almost full radius, leaving a tiny step, maybe 0.2 mm wide and deep ledge.
    Then plunge in z direction cutting only the ledge, with a suitable different...
  10. Replies
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    3,024

    Fantastic thread. Your pricing was spot-on !...

    Fantastic thread.
    Your pricing was spot-on ! (grin) imho.

    Endless ways I can think of for manual-lathe/turret type automation to partly speed the production.
    A 24-part round fixture could hold...
  11. Anyone directing typing anything is not doing...

    Anyone directing typing anything is not doing their job.

    Once the data is captured, and stored, massaging it to customer-format is a simple excercise.
    Expensive tools not needed.

    Likewise,...
  12. Replies
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    51,981

    Well Yes, and no. Today, maybe 80-90% of parts...

    Well Yes, and no.

    Today, maybe 80-90% of parts made on typical 3-axis VMCs could actually be made like that.
    Feed file ("diskette") in -> part comes out.

    There is zero reason most parts cannot...
  13. Replies
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    2,817

    VFDs are not bad for motors. As such. But bad...

    VFDs are not bad for motors. As such.

    But bad VFD tuning, can wear out or break even a good motor.

    Some possible examples.
    Excessive acceleration (peak currents very high),
    high ripple in...
  14. Replies
    27
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    2,418

    OP: I know of nothing that has "tilt" in the...

    OP:
    I know of nothing that has "tilt" in the chuck.

    Likewise, in a lathe, I cannot see tilt as being desirable.
    (adds axis, aka pwr 2 less rigid).

    6-jaw chucks can easily adjust to sub-micron...
  15. Replies
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    3,060

    To op. Try it as I suggested, with a bored...

    To op.
    Try it as I suggested, with a bored starter hole.

    Put a gage pin in it, indicate that.
    Report back.

    I suspect that the hole is very true, and very much on size.

    You can test with...
  16. Replies
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    Indicating a drill shank is probably not a needed...

    Indicating a drill shank is probably not a needed step.
    The drill will drill more/less straight at best, and more/less on size at best.

    But grab a gage pin in the collet.
    Does it indicate...
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    1,632

    1.2.3. Yes. You would be removing less than...

    1.2.3.
    Yes.

    You would be removing less than 0.01 mm of material, and mostly on an inclined plane.

    4.
    Almost certainly no, big NO.

    Lathes are all about rigidity (+load capacity) under load....
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    1,632

    Good for You.

    Good for You.
  19. Replies
    18
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    1,632

    To OP: You got "snarked" with the angle grinder...

    To OP:
    You got "snarked" with the angle grinder comment.

    Posters here sometimes growl at import machines, even in the 14x40 industrial class that is fine for this forum.

    Your machine probably...
  20. To OP: Don´t state how to make a part ! Unless...

    To OP:
    Don´t state how to make a part !
    Unless and until You have experience and Big $$$.

    So asking for rolling/spinning etc. with exact dimensions below 0.01 mm,
    is a terrible idea.

    Asking...
  21. Replies
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    The 28$ bronze sleeve nut from Roton would be my...

    The 28$ bronze sleeve nut from Roton would be my choice.

    Optionally:
    Slit it diagonally and squeeze it a tiny bit lengthwise, perhaps half a thou, == 0.01 mm.
    Should get pretty much zero...
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    No, I don´t think americans start shooting, much,...

    No, I don´t think americans start shooting, much, in riots.

    My point was that the police here are very restrained in use of firearms, and that this is a good thing.
    They also used rubber bullets,...
  23. Replies
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    187,245

    There is zero reality to the catalan demands....

    There is zero reality to the catalan demands.
    They are mostly people who "think" that their money is being taken by madrid, despite the fact that the current economic data shows this is not so.
    ...
  24. Replies
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    The OP really asked for CAD use, and my original...

    The OP really asked for CAD use, and my original reply was for that.

    A decent semi-complex model is about 1GB in file size, easily holding 10.000 3D items, some items somewhat detailed at any one...
  25. Thread: Drone attack

    by hanermo
    Replies
    582
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    26,055

    Em.. I specifically said refining. In scale. ...

    Em..
    I specifically said refining.
    In scale.

    Most imports to the US are in the form of SS, alloys, hard drives, servo motors, 3-phase motors, etc.
    China sits on about 90% of producing rare...
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