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    Oh! More fun. If it is A36 then pretty much the...

    Oh! More fun. If it is A36 then pretty much the only controlled spec is yield at 36 ksi. That is the figure that counts when the part is in tension. If in compression the use tensile. I'm in a love...
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    try sticking an 'AMS' prefix to make it a valid...

    try sticking an 'AMS' prefix to make it a valid spec. then google has an answer. May not be the correct answer tho. Fancy stuff tho .... ~50% Co so let's hope there is a simpler, less expensive...
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    Easy way to clone a disk is the linux utility dd....

    Easy way to clone a disk is the linux utility dd. You can boot into a 'live' install disk for linux and run without installing.
    Short form : dd if=source of=target
    Hit up google for more dd...
  4. Horrible waste of good bandwidth. Worse yet there...

    Horrible waste of good bandwidth. Worse yet there can't be any resolution to the question. IMO OP needs to change what he is smoking.
  5. Glass scales even with manual control are a huge...

    Glass scales even with manual control are a huge leap from counting turns. :-)
    However, my experience with glass scales for cnc has not been as good as encoders on the ballscrews; not enough...
  6. I located my rotary phase converter (30 Hp) next...

    I located my rotary phase converter (30 Hp) next to my main panel. Fused with 125 A motor starter fuses and then ran #6 Cu underground to the shop.
    The lights blink on startup but never had any...
  7. I'm sure that works well for them when the calc...

    I'm sure that works well for them when the calc batteries go dead. I needed the log(10) of 2,3,4 5 and pi so often I carried them around in my head. Long gone now. Now I carry around things like my...
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    Media ages also. Magnetic layer delaminates from...

    Media ages also. Magnetic layer delaminates from the mylar or acetate. Standards change, technology changes.

    From wiki: Recording density increased over time. Common seven-track densities...
  9. best way to ship 5.5 x .07 thick rings.

    I like the PVC pipe idea; but instead of wrapping I think I would sandwich between circles of paper. Get a full stack in the pipe, tension with a circle of foam to keep them packed. BTW - think I...
  10. Like I keep saying. One has to be careful not to...

    Like I keep saying. One has to be careful not to learn something every day. Thank you for the update of my ancient brain.
  11. FYI this is not a medical part per se. It is a...

    FYI this is not a medical part per se. It is a labortory part designed to hold pcr tubes that take the testing swab and using pcr make millions of copies so there is
    enough material to test.
    "The...
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    math help: polar to cartesian formula - Google...

    math help: polar to cartesian formula - Google Search

    But the problem may be much more wrapping your head around setup and work-holding. The arc segment will fit on your mill but not with a lot...
  13. Linuxcnc site is still quite alive. Both servos...

    Linuxcnc site is still quite alive. Both servos and steppers. SEM MT-xx servo motors are adequate for your mill. Having been there ... done that I would not bother to motorize the W axis. Belt...
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    The only positive to that is that you get to...

    The only positive to that is that you get to define the strength of the floor. Mazak recommended 12" of concrete for my V5. Serious overkill
    What it got was ~5" of well cured concrete with as grid...
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    I like the idea of 41L40 but of course HT runs up...

    I like the idea of 41L40 but of course HT runs up the price. :-(
    However, being of good cheer and possessing a fertile imagination ... this sounds like gun drill territory. Emulate a gun drill on...
  16. Another thought. Careful buying off ebay may get...

    Another thought. Careful buying off ebay may get you a good 'nuf meter for a bit less. But maybe not enough less to make it worth the chance.
    YMMV
  17. I'm a fluke fan... I've owned 3.. one bench top...

    I'm a fluke fan... I've owned 3.. one bench top and two handheld. If buying new then the fluke 114 should do nicely. I rather like my 85 but it may have features you don't need. Nulling the dac is...
  18. Tuning servos varies from easy to difficult....

    Tuning servos varies from easy to difficult. YMMV. Having said that let's start with some basics. I assume that the encoders are on the end of the servo motors and the servo motors are DC brushed...
  19. Ah! Orders of magnitude do count in places beyond...

    Ah! Orders of magnitude do count in places beyond paychecks. :-)
    I see you've been keeping up with theory. Early on I had just glass scales ( 5 um ) on my mill. Worked but hard to tune. Now I have...
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    Worst case hang it on Craig's list for a couple...

    Worst case hang it on Craig's list for a couple of hundred. It might be repairable and worth much more than that. Thirty year old machines may not be worthless they just won't make money like the...
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    Hello Michigander ;-) Detergent and water are...

    Hello Michigander ;-)
    Detergent and water are the recommended cleanser. A touch of peroxide probably wouldn't hurt. Easier on the hands then alcohol based stuff and available. Dawn is pretty good...
  22. Hi, I think the Arduino is underpowered....

    Hi,
    I think the Arduino is underpowered. However, the Rpi4i is rather capable and the final cost difference of a working device will not be much different.
    I know a guy running a Sheldon lathe on...
  23. From the wiki: BTW - any tuning I've done has...

    From the wiki:

    BTW - any tuning I've done has been under load. If one were really to be picky a couple of vises and some steel on the table would be realistic but I've never known anyone to worry...
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    covid19 is 70-90 nm. Bare virus is just into the...

    covid19 is 70-90 nm. Bare virus is just into the diffusion but clumps of virus and droplets must be the mechanism which explains why the mssks work at all.

    N95 Respirators and Surgical Masks | ...
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    Olfa cutters are good according to my wife who is...

    Olfa cutters are good according to my wife who is a quilter.

    She recommends the martelli rotary, it comes in rt hand and left hand models. A bit easier on the hand.
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