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  1. Replies
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    EG, that's pretty much what I was about to...

    EG, that's pretty much what I was about to respond with - you just saved me some time.

    WTF are people doing with their screen time?? Do you insist at staring at shit (literal excrement) for hours...
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    I've said it before - there needs to be a full...

    I've said it before - there needs to be a full accounting for the money being handed out as "Covid relief", and those with their hands in the till must be thrown in jail.

    All taxpayers will be...
  3. JMO, but you should leave the "new" mics with...

    JMO, but you should leave the "new" mics with your vendor (refunded, of course), and bite the bullet and get Mits digitals. So convenient being able to set arbitrary "0" for parts inspection, then...
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    1/8" steel plate, mounted to the stand at the...

    1/8" steel plate, mounted to the stand at the base with flathead screws and big enough to be stood on while doing most of your grinding will keep it stable, but will prevent tip-over unless grossly...
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    With how much money banks have gotten from...

    With how much money banks have gotten from taxpayers (at least in the USA), we should own THEM: Banks have grown by $2 trillion in deposits since coronavirus first hit

    And we get to pay AGAIN in...
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    On-topic: White House to "massage" Covid data before it gets to the researchers

    In "not a surprise" news, djt appointees want to "adjust" the data coming from hospitals around the nation before it's released to the CDC and medical researchers.

    Have no fear, Dr. Drumpf is on...
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    Hunter was an idiot for bringing a gun to the...

    Hunter was an idiot for bringing a gun to the concert, I'll grant you that. But the way he was savaged by the HA's after he was disarmed was full-on animalism, so beyond the pale that it should not...
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    Well, until Altamont...

    Well, until Altamont...
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    You have me really curious about whether this new...

    You have me really curious about whether this new lot will act the same - If you'll be repeating the machining process (so you have apples/apples), it'll be interesting to see if there's a similar...
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    How thick is the part? How much material do you...

    How thick is the part? How much material do you need removed (what's the final width of the slot)? What's the precision needed relative to the inside profile and outside envelope?

    I've cut a...
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    That's an expensive doorstop...

    That's an expensive doorstop...
  12. Thanks for that update, and let us know how the...

    Thanks for that update, and let us know how the machine is in a month or so.
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    Out of curiosity, is the customer accepting any...

    Out of curiosity, is the customer accepting any "blame" for the troublesome material? And how much $($$$) is one of those raw blanks, anyway?

    And why start at 4" with a 3.5" final? That's a lot...
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    Have to cut below the edge prep. For shallow...

    Have to cut below the edge prep. For shallow cuts might have to use Al-type inserts and slow SFM further to get them to live a little.
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    Are you making your finish cuts with sharp...

    Are you making your finish cuts with sharp carbide? Ceramics by their nature can put a lot of stress into the workpiece, so using carbide for finishing should give a more stable final part...
  16. I'd consider using 4140 HT (pre-hard), as it...

    I'd consider using 4140 HT (pre-hard), as it might have a higher fatigue life due to not having Selenium as an addition for machining ease.

    For comparison, the numbers I saw for 2" elongation were...
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    Treadle. I mean, what else do students have to...

    Treadle. I mean, what else do students have to do nowadays?
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    Me, I'm waiting for the Heat Death of the...

    Me, I'm waiting for the Heat Death of the universe. Paradoxically, HD will be quite chilly, so I've packed away extra flannels for the eventuality.
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    Got it, DD. So we can count you as a firm "Yes"...

    Got it, DD. So we can count you as a firm "Yes" in voting for djt? Because anyone who votes for djt must be really smart and savvy, and not at all, umm, gullible?
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    Good catch - the fourth image shows the correct...

    Good catch - the fourth image shows the correct display, but the "whole" picture does seem wrong. Funny, if it's a copy they got the step in the lock screw correct, most copies don't.
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    Try air blast rather than coolant.

    Try air blast rather than coolant.
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    It's too short a stroke at 500mm (19.7"), but at...

    It's too short a stroke at 500mm (19.7"), but at 4500lbs force it could work if the attachment points could be changed to allow for shorter stroke/higher force.

    I was thinking DC power use with my...
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    And here's my confirmation of delivery - all...

    And here's my confirmation of delivery - all 16pcs (lil' typo in OP, 16pcs, not 15) arrived well packed and in good shape.

    Thanks jowens909!
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    You could probably do what you need with a...

    You could probably do what you need with a smallish DC gearmotor and length of roller chain. May need a couple keeper-rolls too. Just mount the gearmotor to the middle of the base, have the roller...
  25. Yeah, especially with Al heads A-S is a good...

    Yeah, especially with Al heads A-S is a good idea. Just be extra careful to keep it only on the threads, never let it get on the insulator or "inside the combustion chamber" area
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