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  1. The moderators may move this to the antique...

    The moderators may move this to the antique machinery section, which is where discussion of shapers is allowed.
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    It has been noted several times that the decline...

    It has been noted several times that the decline in airborne lead pollution after the US outlawed tetraethyl lead additive in gasoline tracks fairly well (with an appropriate delay corresponding to...
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    What??? Archaeologists have dug up the bones of...

    What??? Archaeologists have dug up the bones of Romans and found high levels of lead in the bone. And forensic examiners have found in those bones skeletal deformities linked to heavy metal...
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    GregSY, I don't know you well enough to know if...

    GregSY, I don't know you well enough to know if that's written with massive sarcasm, tongue firmly planted in cheek, or if you really believe it. But if you really believe it, you need to do a bit...
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    That is certainly true! About 15 months ago, I...

    That is certainly true! About 15 months ago, I did a job on my hand-lever Nichols which called for 4" diameter, 0.0355" wide, slitting saws (slot width 0.035-0.036).

    I started with three HSS...
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    Per message. If you have more than 5, just reply...

    Per message. If you have more than 5, just reply to your own original message and attach 5 more to the reply.
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    I didn't see anybody mention this explicitly, but...

    I didn't see anybody mention this explicitly, but Dumont and the other broach makers document both minimum and maximum length of cut. Minimum so you have enough teeth in the cut to be stable, and...
  8. Welcome! There are several members here with Van...

    Welcome! There are several members here with Van Normans. I have a #28A. IIRC it was made in 1954.
  9. Thread: Big Score

    by sfriedberg
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    I work where it's humid 75% of the year, but my...

    I work where it's humid 75% of the year, but my shop is air conditioned (controls humidity) and I don't have airborne salt particles to deal with. So what I use may not be adequate for you.

    For...
  10. I don't claim it's best, but in my shop I would...

    I don't claim it's best, but in my shop I would probably use A2 if stability was the main concern, O1 if cost was a big concern. That's primarily because I can quench and temper A2 in house with...
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    Well, that's because the usual response of...

    Well, that's because the usual response of auctioneers is "Can't you read? No means no." If shipping is a possibility for this auction, that makes buying some lots much more practical for people...
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    If you don't need to save the existing bearings,...

    If you don't need to save the existing bearings, this is rather easier. Slide hammer with bearing puller jaws or a pilot bearing puller. Heating the housing will help.

    If you do need to save the...
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    I second the recommendation for a "value" live...

    I second the recommendation for a "value" live center with interchangeable tips. In a pinch, you can make your own custom tip.

    If you are willing to settle for a dead tailstock center for...
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    That's an interesting question! A non-woven belt...

    That's an interesting question! A non-woven belt is probably going to be a lot easier to find. I had the card potion of a file card come unglued once, and once I started flexing the material the...
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    Actually, the Hardinge TT releasing tap head (for...

    Actually, the Hardinge TT releasing tap head (for turret lathes with reversing spindles) would not be a hard shop project.

    If you had a source for an appropriately sized planetary gear set, you...
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    Sending an email.

    Sending an email.
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    Socket head shoulder screws are frequently used...

    Socket head shoulder screws are frequently used to retain the stripper plates in punch press die sets, which is why they are often called stripper bolts. Obviously, they can be used for lots of...
  18. ??? I would expect off-the-shelf O1 bar stock to...

    ??? I would expect off-the-shelf O1 bar stock to be annealed, not quenched. If that's what you're buying, complain to your vendor. Until they can fix the supply problem, find a local heat-treater...
  19. I wasn't familiar with that abbreviation, but...

    I wasn't familiar with that abbreviation, but Google reveals that LO can be used for external NO GO, while HI can be used for internal NO GO. See the discussion here.
  20. EPAIII, this must be the month for this...

    EPAIII, this must be the month for this particular question. I think there are four, maybe five, threads on the topic/question in the last few weeks.
    All those questions answered here among other...
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    If I need something right away, or just a...

    If I need something right away, or just a half-dozen, I visit my local Ace Hardware, which is actually a hardware store, not a mini-Target. They frequently have boxes of 100, tucked away behind the...
  22. I don't know how well it would work for steels,...

    I don't know how well it would work for steels, but the local high school robot team shop uses a 2" or 2.5" ShearHog on a Jet Bridgeport clone to face off aluminum, and it's a favorite tool.
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    I've got a 7.5HP 16" swing lathe, weight about...

    I've got a 7.5HP 16" swing lathe, weight about 4400 pounds, and it will part 3.5" or 4", but it's working at it, and it requires noticeable cross feed thrust to keep a chip forming. moonlight...
  24. The biggest convenience is that they are ground...

    The biggest convenience is that they are ground for specific thread forms (and usually pitches, unless you buy the partial profile ones). Most of them have chipbreakers which work. Those are really...
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    Parting can be even more sensitive to tool being...

    Parting can be even more sensitive to tool being at centerheight than turning. Double check that, and make sure the tool has a keen edge.

    Do you cut off with power cross feed? (I'm assuming a...
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