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Type: Posts; User: sfriedberg

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  1. Currently available two-axis vises suck. ...

    Currently available two-axis vises suck. Anything under $500 is just garbage. You could shop-make a half-assed two-axis vise and it would be superior to what you can buy. I keep trying to get the...
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    I suspect it's just an older style, made with a...

    I suspect it's just an older style, made with a less efficient process for mass production, which is why we don't see lock washers made that way today. They may have been going for a combination of...
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    I'm not a grinding expert, but thoroughly...

    I'm not a grinding expert, but thoroughly disbelieve the notion that grinding coolant forces the wheel away from the work. Even if it did, it wouldn't much matter because the effect would be...
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    With just the one photo, I'd be tempted to guess...

    With just the one photo, I'd be tempted to guess "drill jig". Does the top move up and down when you operate the lever? Is there a hole in the top positioned over the lower jack/support?
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    I've had a hearing loss since I had mumps as a...

    I've had a hearing loss since I had mumps as a kid, but until I reached my 60s it was a very narrow frequency notch. About five years ago, I was getting annoyed at continually having to ask "Say...
  6. Well, actually, I often do, especially when I'm...

    Well, actually, I often do, especially when I'm not sure whether I'm giving data for a multinational (like my employer) or not.
  7. You might get a hair more clearance for the...

    You might get a hair more clearance for the holder if you went over to either a TopNotch-style or a vertical triangle style of insert. But in that case, I'd just buy the full profile insert for the...
  8. You definitely need to remove the split cotters...

    You definitely need to remove the split cotters (the clamps for tool shanks) first. Once you get those out of the way, IIRC the bushings are a light press fit.

    You probably need to use a slide...
  9. Generally if you use a partial profile insert,...

    Generally if you use a partial profile insert, you just live with the deeper root. If thread form is critical, buy a full profile insert for the desired pitch.

    If you want to improvise with what...
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    I don't buy in production quantities; it's rare...

    I don't buy in production quantities; it's rare when I buy more than 6 of the same size drill. I usually buy from Travers or KBC Tools, where you can buy anything from cheap no-name to Nachi and...
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    Bart, a typical rule of thumb is one hour soak...

    Bart, a typical rule of thumb is one hour soak per inch of thickness. So 1/16" thin plates should not require much soak time. In fact, I'd probably be worried more about confirming they actually...
  12. Not-even-that-old-school technique: Holding...

    Not-even-that-old-school technique: Holding 14x18" in a vise? Forget that. Use strap clamps and clamp it to the table (or precise blocks placed under the strap clamp contacts). If you need to...
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    As far as I know, there is only one version of...

    As far as I know, there is only one version of the Hardinge 4 degree taper spindle nose. So any Hardinge chuck, faceplate, or step collet closer with the 4 degree taper will fit your machine. ...
  14. Before you can bore a taper, you have to drill it...

    Before you can bore a taper, you have to drill it out to make room for the boring bar. Jobber length drills aren't long enough for the job. Taper length drills are long enough for typical shallow...
  15. Glad you got it sorted, I am sure the hours spent...

    Glad you got it sorted, I am sure the hours spent messing with it were frustrating. Even gladder you mentioned the problem here, as a reminder/tip.
  16. I bet he has a real familar name, too.

    I bet he has a real familar name, too.
  17. B&S #00 screw machine used 5/8" shanks, B&S #0...

    B&S #00 screw machine used 5/8" shanks, B&S #0 screw machine used 3/4" shanks, B&S #2 screw machine used 1" shanks.
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    Turbowerks, when you say "billet", do you mean...

    Turbowerks, when you say "billet", do you mean "blank"? 'cause a billet is a massive semi-rough piece from a smelting foundry that goes to a forge or a rolling mill for further processing. Just...
  19. They aren't labeled with an industry-standard...

    They aren't labeled with an industry-standard code, and the square arbor hole is certainly not common. So these were probably house-branded "proprietary" wheels for some specific make and model of...
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    eKretz, in that fourth photo, is the "shadowed...

    eKretz, in that fourth photo, is the "shadowed overhang" an artifact of the contrast enhancement?
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    Combine a hinge/pin with an additional stop+clamp...

    Combine a hinge/pin with an additional stop+clamp bolt, through both parts a few inches from the hinge, to fix the angle where you want it.

    Or just make a small solid taper block (small enough not...
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    Stroke? (Hard to tell that from photos with no...

    Stroke? (Hard to tell that from photos with no size reference.)
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    Do you know the material (A500, A513, 1026,...

    Do you know the material (A500, A513, 1026, 12L14)? Easy machining alloys are (roughly) exclusive of easy welding.

    But it's more likely the surface of the material is contaminated. "Buffing...
  24. Did Columbia Steel Casting in Portland ever...

    Did Columbia Steel Casting in Portland ever commit to host another class? I'd be interested in either Seattle area or Portland, but have some schedule commitments before and after Thanksgiving.
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    That seems like an excellent price. Even a (new)...

    That seems like an excellent price. Even a (new) Chinese import 16x40 is going to cost three times that.
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