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  1. M

    ID A vise screw, and help making an Acme Nut

    Here is another way to make the nut. Weld your blank up out of whatever pieces will make the shape, but with a tube for the nut portion, ID just a little bigger than the screw O.D. Coil a wire or piece of slender keystock to fit nicely in the trough of the male thread. Fit it into the tube...
  2. M

    ID A vise screw, and help making an Acme Nut

    I made a vise nut once by molding a pattern with my hands out of warm wax, to fit the dovetail in the vise body, and squeezed into the threads. I dipped the dovetail in more molten wax to fatten it up a bit so I could file it to a drive fit in the body. Unscrewed the wax nut from the screw...
  3. M

    Gimp needs advice buying lathe

    Calling myself a gimp will be S.O.P., if I live long enough to achieve the honor. It says, "I have nothing to feel ashamed or embarrassed about, and I call a spade a spade. (not a pine-handled backhoe). When I become a gimp, one of my first projects will be to build myself a wheelchair...
  4. M

    More shop items to sell #3

    How much for the formed threading tool holders, pic 4 in post 23?
  5. M

    OT - Old belt driven diesel generator for home backup?

    I have a 3KW Wisconsin-powered genset that is self-regulated I think that means it has a compensating winding that opposes the field is voltage gets too high. But a genny with a separate exciter probably needs a regulator. The rheostat may be for setting the voltage on the (missing)...
  6. M

    hot tank use

    If this https://www.greenpowerchemical.com/files/116316/PriceList.pdf is the TASC stuff, it is $11per pound in 55 lb pails.....
  7. M

    recycle T&G flooring??

    Thanks for the sage and kind advice! The denailing will be the most laborious part, cut nails but not too many of them. The ripping to remove T&G I am comfortable with...the T&G ends I will leave. Whether I actually attempt this will depend largely on whether the little nameless green Chinese...
  8. M

    recycle T&G flooring??

    I have acquired a pile of old 2 1/4" wide random-length (10" to 48")T&G maple flooring from a house I am tearing down. I would like to 1, de-nail 2. rip off tongue against fence on table saw 3 rip off grooves against fence on tablesaw 4. lightly plane off finish from tops of boards 5 plane off...
  9. M

    conductive lubricants

    In my experience many electrical connections benefit from some kind of "goop", to retard oxidation, exclude water, prevent corrosion, lubricate, and make future disassembly easier, I know there is a standard product used on aluminum connections, but I do not know how suitable it would be on...
  10. M

    Rigging a Space Shuttle - live tonight 9PM PDT

    Hold my beer!
  11. M

    Could your shop make artillery rounds?

    On a less-political note, I saw a piece of news claiming that NATO is buying 220,000 155mm rounds for $1,200,000,000. My arithmetic says that is about $6,000 per shot. Is that for real? What is so expensive in a 155mm artillery round ?
  12. M

    Moving out the Boxcar Machine Shop, Approximate date of Brown & Sharpe magnetic chuck

    I hope we technology dinosaurs are more successful at avoiding extinction than the reptilian kind were. What we know is the culmination of ten thousand r more years of learning, and its "irrelevance" to today's electronic world is a vicious delusion: our "black start" technological history is...
  13. M

    OT: Automotive Gaskets Corrosion and Silicone Grease

    Any kind of grease sounds to me like a leak-path. If you have corrosion pits or the sealing surface is wasted so it is no longer flat, then adding a sealant that cures, like silicone , may help.
  14. M

    problem with a drill/tap for non common thread

    I am confused because i am pretty sure that the thread for a Schraeder valve stem is .305-32. I have made chucks for them. I do not know what thread is used for the Presta valve., or for the female thread into which the core screws in either Schraeder or Presta valves.
  15. M

    0t--wire rope suspension

    I taught myself to short-splice 3-lay rope back in the early 1980s, while waiting interminably to pay for my loot after a poorly-run machinery auction. At the time I would often make back the money I spent at auctions by helping other buyers load their purchases, with the boom and hand-cranked...
  16. M

    Measuring pressing force in a arbor press.

    I have an old screw-type press, and have always wanted to build a set of levers to amplify the stretch in the columns until it is readable on a gauge. If the max design stress in the columns is, say, 10,000PSI, a foot of column length will stretch roughly .004". One 25-to-one lever will give...
  17. M

    Tool handles and simple machines

    My first essays in blacksmithing were with a roughly 2-lb cross-pein hammer. It flew off the handle into the woods, many years ago.. So sad!
  18. M

    Crank truing with Tail Stock

    eBay item number:303814983035
  19. M

    Crank truing with Tail Stock

    If you have a hacksaw and a file you can make your brass vees. File the hacksawed surfaces smooth Angle is not critical...90 -ish to 120-ish. You could buy 1/8" x 1" extruded brass bar stock and silver-solder it to a flat plate. You could bolt your brass vee to one leg of a piece of 2 x 2 x...
  20. M

    Tool handles and simple machines

    Eyes are always tapered in both directions. Handle is driven into the taper from the near side to tightness, then the far end is wedged into reverse taper for retention. I like the idea of enlarging the eye hot without material removal. But making suitable drift would take a long as machining...

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