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  1. joecr

    "ferrous cutting" circ saw blades from big box = cheap slitting saw ?

    I noticed a circular saw blade marked for cutting ferrous materials. Avanti 7 in. x 128 Tooth Ferrous-Metal Circular Saw Blade - A07128R at The Home Depot That does not seem reasonable, but if it kinda sorta survives cutting sheet roofing at circular saw rpms, what should be expected from it...
  2. joecr

    OT: Infinitely variable trans using only gears

    Strange things happen when plumbers have too much time on their hands. Video: Is Steve Durnin's D-Drive the holy grail of infinitely variable transmissions? As I dimly visualize it, with some odds of being completely suckered in by a scam... the ratio between the input shaft and output shaft...
  3. joecr

    OT:WWII compass w/air pocket;correct fluid?

    What fluid should be used to refill a compass? I've had a 1945 British field compass for years that my brother gave me and it's always had a sizable air pocket that makes it hard to stabilise the floating mother of pearl disc inside. I won't be polishing off that old brass patina and hate to...
  4. joecr

    OT: Interesting comments on trades, from respectful PhD

    Matthew Crawford, if you dig, turns up to have a PhD, oceanography work, lots of "liberal arts" work and stuff, Bradley Fellowship, The H.B. Earhart Fellowship, and the University of Chicago Century Fellowship; he was the John M. Olin Postdoctoral Fellow in the Committee on Social Thought...
  5. joecr

    OT - free Win-on-mac/Linux products; CodeWeaver honors promise

    Of interest to anyone using a Mac or Linux. Codeweavers products are used to run Windows programs on those platforms, presumably better than the free WINE program. They are available free, today only. Thanks to a rash promise the owner made...
  6. joecr

    Pallet jack oil refill problems

    Zero experience in the internals of pallet jack or any other hydraulics, so the first laugh is free. I have a pallet jack (thrown in with a mill, it wouldn't drop down), and can't get hydraulic fluid to drain into it from the drain (fill?) holes. It just fills a gram or so and overflows; won't...
  7. joecr

    OT:Advantage of a 2-headed TrueTrac Bridgeport mill?

    What advantage that makes it worthwhile to have a dual headed Bridgeport? The hydraulics too; is that a tracer/pantograph sort of function? http://cgi.ebay.com/Bridgeport-TrueTech-Milling-Machine_W0QQitemZ250204407298QQihZ015QQcategoryZ12584QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
  8. joecr

    Electroless plating, nickel v. cobalt, and acid details?

    I've never plated anything unless rust counts. I want to know how to mix the right concentration of acid for prepping metal, masking sections off, and the properties of electroless cobalt. I've read various comments and ended up buying some electroless nickel for little bits, more to fight...
  9. joecr

    Index Machine & Tool milling machine quality?

    Saw this interesting item for sale, not sure if the DRO goes with it: http://dallas.craigslist.org/for/413632764.html But I cannot find comments on the make. Searching for something like "Index Milling Machine" is death by a thousand hits.
  10. joecr

    Mtg bracket for SB drum switch, small, surplus to requirements

    I picked up a little drum switch that had a nice cast iron mounting bracket. The switch is a Furnas RSB3 marked South Bend with a 3.625x2.375 base and the other side matches a 3-4" dia tube, canted at 10 degrees or so. I don't need it and hate to toss it (the bracket, that is, the drum switch...
  11. joecr

    OT:ADC auction, electronics, metrology bits

    Yet another sad to see sign of the times. The locations are too far away for me. ( Raleigh, NC, Shakopee, MN and Santa Theresa, NM) http://www.thebranfordgroup.com/DNN3/Auction/ADCT3.aspx some items might be relevant: </font># Several Dolan Jener Fiber Lights # Several FIS Optical Power Meters...
  12. joecr

    Spread spectrum 1-ph VFD (for precise finish)?

    Does anyone make a single phase VFD which deliberately "spreads" the operating frequency around the selected (60 Hz, whatever) frequency? This for the sake of eliminating that single phase 60Hz vibration that telegraphs right into the finish, but cheaper than a 3-phase setup. It seems like a...
  13. joecr

    OT: Using airbrush with anti-rust paint?

    Is it a bad idea to use an airbrush to paint equipment? (little Jet 1024PY lathe, swamp green factory paint). Not in a big hurry or even have the time to do it all in one go. Various comments here led me to try Ace Hardware's "Ruststop" paint. They matched the color dead on, even from an...
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