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Type: Posts; User: 706jim

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  1. Replies
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    2HP? Stop right there.

    2HP? Stop right there.
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    374

    I think it's based on 10 bits per inch of tape....

    I think it's based on 10 bits per inch of tape. So one foot = 120 bits. 1000 feet of tape 120,000 bits or 120k. And the cost of bubble memory from Fanuc was astronomical.
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    When I ran a OT control the geometry screen...

    When I ran a OT control the geometry screen displayed the distances in X and Z from the turret face. Example: A turning tool whose tip was 1" extended from the turret face in the X direction would...
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    While I'm not sure where you would plumb a...

    While I'm not sure where you would plumb a pressure gauge into the lathe oil pump I'm going to suggest that it is probably not worth the bother. I think the pressure developed in a lathe headstock...
  5. Thank you for this. I'd love to see boat pictures...

    Thank you for this. I'd love to see boat pictures although the forum moderators might think it's too far off topic. Perhaps you could email them to me instead. I think my profile lists my email if...
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    No experience with Mazatrol, but at high rpm you...

    No experience with Mazatrol, but at high rpm you could be getting pitch error. As suggested try slowing rpm and check the thread fit then.
  7. Now that sounds interesting. Fuel or electric...

    Now that sounds interesting. Fuel or electric powered?
  8. Well if its that cheap you could always resell...

    Well if its that cheap you could always resell it. But it sounds like there will be quite a bit of effort to get it going regardless.
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    Yes I'm aware of that. But I think the damage was...

    Yes I'm aware of that. But I think the damage was due to the lack of oil.
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    We installed a Memex board in our 6MB about 1991....

    We installed a Memex board in our 6MB about 1991. Worked faultlessly. While attempting to get a Calmotion USB talking to the control (we never did get it to work) all parameters on the Memex were...
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    Some guy (this is a third hand story btw)bought a...

    Some guy (this is a third hand story btw)bought a used Sag 14. Started it up with no oil in the headstock and destroyed those Gamet bearings. And the replacement cost was more than the lathe was...
  12. Thread: Thread Gages

    by 706jim
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    608

    FWIW I taught the 3 wire method for years and...

    FWIW I taught the 3 wire method for years and never questioned the numbers that are calulated from the standard formula. Turns out "M" generates the pitch diameter for the top limit of a class 3A...
  13. I'll agree with that

    I'll agree with that
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    Don't buy it even if the price was a lot lower....

    Don't buy it even if the price was a lot lower. Knee mill no ATC no enclosure and all the problems found with a quill as to rigidity and Z travel. Guessing Z is the knee bobbing up and down?
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    I set my X origin to the spindle centerline. Z0...

    I set my X origin to the spindle centerline. Z0 could be the chuck face, jaw face, end of faced part (varies).

    And my tool offsets are X and Z off of the turret face. Something like a VMC.

    I...
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    In a school environment we gave up on thread...

    In a school environment we gave up on thread dials many years ago. Instead we would engage the half nut and reverse the spindle when we got to the thread relief. On other machines, we reversed the...
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    Ok Ok, I'll admit I haven't read every post in...

    Ok Ok, I'll admit I haven't read every post in this thread.

    That said, aren't those holes done by now?
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    The carriage handwheel on my Sag 14 pulls out to...

    The carriage handwheel on my Sag 14 pulls out to disengage although I rarely use this feature.
    I'm sure this is how it was shipped from the factory.
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    Machine the side slots first. Then use a dovetail...

    Machine the side slots first. Then use a dovetail (not dowetail!) cutter. As an alternative, you could make a flycutter with the required dovetail angle on the tool bit maybe out of an HSS blank in...
  20. Thread: Details needed

    by 706jim
    Replies
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    A lot of power, a lot of force, require a lot of...

    A lot of power, a lot of force, require a lot of rigidity. Years ago Valenite sold us a group of similar (but even worse) cutters. For the most part they were pretty much unusable. And we were using...
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    2 posts. Loooong post. SPAM!

    2 posts. Loooong post.


    SPAM!
  22. $100 $1000 $10000 $20000? Why not post your...

    $100 $1000 $10000 $20000?

    Why not post your asking price?
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    And your question is.....

    And your question is.....
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    As to setting an origin and using G50, I envision...

    As to setting an origin and using G50, I envision setting zero similar to a machining center. There is some exact distance from the turret X face to the spindle centerline. If that number was (say)...
  25. Thread: Graziano sag 14

    by 706jim
    Replies
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    I read the comment above regarding missing levers...

    I read the comment above regarding missing levers on the headstock. I would agree that the machine was probably tipped over onto concrete sometime during its life. It would be nearly impossible to...
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