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Type: Posts; User: Paolo_MD

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  1. Replies
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    1,050

    I would consider Moglice or something equivalent....

    I would consider Moglice or something equivalent.
    For the prepping, rather than sandblasting (which could negatively affect areas next to the pit, I would clean, deepen and rough-up the pits with a...
  2. A picture would be very helpful. When talking of...

    A picture would be very helpful.
    When talking of clips and micrometers, what it comes to mind are the clips used to hold on the anvils the three wires when measuring threads.

    Unfortunately, I...
  3. Replies
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    1,104

    Doozer, Probably, you'd better ask this question...

    Doozer,
    Probably, you'd better ask this question in a new thread.

    Paolo
  4. Replies
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    605

    Do you mean the bearings don't handle well the...

    Do you mean the bearings don't handle well the extra speed? From the electrical point of view, I think the lower frequencies (especially in "vectorless mode") are the more demanding for the motor:...
  5. Replies
    38
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    3,454

    I'm unable to hear any tel-tale sound in the...

    I'm unable to hear any tel-tale sound in the videos. Just some noise from worn gears with probably too mach play between meshing teeth.
    I think it would be a good idea to run the motor and listen...
  6. Replies
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    1,722

    You have mentioned that you can silver-solder: if...

    You have mentioned that you can silver-solder: if you have ox-acetylene torch, you should consider brazing with a bronze rod, which flows much less than silver and is better for build-up. Plenty of...
  7. Replies
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    482

    Probably, I'm the other forum member you're...

    Probably, I'm the other forum member you're referring to in regards of using the table as the primary aid for sliding forward the ram assembly.
    The memory is a bit foggy right now. But I kind of...
  8. Replies
    5
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    750

    It could also be a banjo for an universal...

    It could also be a banjo for an universal dividing head.

    No help on make, etc.

    Check if there is any letter or number cast in the part,

    Paolo
  9. Kevin, First of all, I like the way you have...

    Kevin,
    First of all, I like the way you have approached this crowd.
    Don't take too negatively the replies. Most of us have fallen in the same or similar rabbit holes.

    We don't know much of your...
  10. I believe that Moglive would present the same...

    I believe that Moglive would present the same friction problems of Turcite and other materials designed to reduce friction.

    Paolo
  11. Replies
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    474

    Especially if you have limited funds and no...

    Especially if you have limited funds and no access to a well furnished workshop, building a lathe from the parts you have will be definitely an educational experience, buy many times more expensive...
  12. Replies
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    607

    I guess that the overarm should be stiff enough...

    I guess that the overarm should be stiff enough for a J head, if you keep it as close as possible to the ram.

    However, unless you're doing your gang-milling on a different machine, to me it seems...
  13. Replies
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    1,195

    The very part could be your "sine plate": measure...

    The very part could be your "sine plate": measure the distance between where it rests on the table and where you would have to put the "blocks", and you can calculate how high your blocks/machinist...
  14. Replies
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    1,195

    Have you considered a different approach, like...

    Have you considered a different approach, like using the 45° cutter and nodding the milling head or setting up the piece with the dovetail at 5°?

    Otherwise, I'd suggest you to search for the PDF...
  15. Replies
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    1,631

    PM sent. Thanks! Paolo

    PM sent.

    Thanks!

    Paolo
  16. Replies
    34
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    3,808

    Feynman, Just two quick comments. Precision...

    Feynman,
    Just two quick comments.
    Precision level vials are relatively inexpensive (< $100) and extremely useful. Something I strongly suggest you add to your toolbox.
    To measure the twist you...
  17. Have you considered using a VFD instead? Being...

    Have you considered using a VFD instead?
    Being able to momentarily change spindle speed without stopping and changing gears and tuning the speed to reduce vibrations and chatter are some of the...
  18. Replies
    30
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    2,317

    Just a couple of quick considerations. First,...

    Just a couple of quick considerations.
    First, making a small boring bar is even simpler than a D=bit: you can free-hand it and the only critical part is to grind and stone a sharp edge and have...
  19. Magnets are generally rather fragile. I'm afraid...

    Magnets are generally rather fragile. I'm afraid that your solution wouldn't work great with anything well seated.

    Paolo
  20. Replies
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    1,304

    I want to stress what Milland said: such long...

    I want to stress what Milland said: such long prism is almost as rigid as an overcooked spaghetti. Dennis Foster's 36" is a good compromise between a regular straightedge and a true camelback one....
  21. Replies
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    I suspect that you're dealing with...

    I suspect that you're dealing with peening/compression stress. Generally, the stressed part is convex, like the top of the table of a milling machine.
    Scraping material off the area that could have...
  22. I think the first consideration is about an...

    I think the first consideration is about an unbiased evaluation of the wear of the ways, etc. and availability of other machines in gair shape.
    Given that the gearbox and spindle are in oil bath...
  23. The main problem in using the very machine to...

    The main problem in using the very machine to measure distances is that such measurements are affected by part of the inaccuracies that got the part out of specs in the first place.
    If you could...
  24. Replies
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    624

    Sebastian was later acquired by Sheldon, which...

    Sebastian was later acquired by Sheldon, which continued to produce only the gearhead models and you can find some more documentation on them searching for Sheldon.

    However, your description of...
  25. In most tailstocks the quill's leadscrew pushes...

    In most tailstocks the quill's leadscrew pushes out the taper.
    First, I'd check how shorter than necessary is (if you have a tool with the taper ending in a thread, you can thread in a headless...
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