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Type: Posts; User: Conrad Hoffman

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  1. I think JST has it. You're just wiggling a coil...

    I think JST has it. You're just wiggling a coil next to something that either is or isn't magnitized. The signal is amplified, filtered, rectified and read out on the meter. Cute little thing.
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    An overdressed fine wheel will make all kinds of...

    An overdressed fine wheel will make all kinds of heat. You want about a 46 with a coarse fast dress. If it's balanced, the finish will still be very good.
  3. A 32 finish isn't all that great. If this is...

    A 32 finish isn't all that great. If this is turning, try a shear tool. That will work on the worst steel and look like it's ground.
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    No assholes! (I believe it was Paul Kantner who...

    No assholes! (I believe it was Paul Kantner who said, "they'll always be assholes."
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    If you know it's an Atlas, you know enough to...

    If you know it's an Atlas, you know enough to know you'll be tarred, feathered and flamed for mentioning it here.
  6. Well, we use a lot of M1.4 and such, so a #10 is...

    Well, we use a lot of M1.4 and such, so a #10 is a pretty serious heavy duty bolt.
    https://www.amazon.com/dp/B07KGKFNY2
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    Can the pipe be rotated up on its threads to get...

    Can the pipe be rotated up on its threads to get the thing under it?
  8. They seem to have an infatuation with ear wax...

    They seem to have an infatuation with ear wax removal tools. The rotary hand-piece looks like a knockoff of a very high end Japanese one. No idea about the Starrett stuff, but I'd be wary of the...
  9. Well, it won't cost you much to buy it and report...

    Well, it won't cost you much to buy it and report back. It looks like the same cheap boring head they sell with a threaded mount that I use on my import mill/drill. I bet you find out that the "micro...
  10. Loose abrasives on soft material will be a...

    Loose abrasives on soft material will be a disaster. That said, I've used RV antifreeze as an additive and it works better than nothing. It's propylene glycol so it's pretty safe stuff. It does not...
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    Basic formulas and a reference here- Solid Disk...

    Basic formulas and a reference here- Solid Disk Flywheel Design | Engineers Edge | www.engineersedge.com

    I'd also thing balance will have to be dead perfect and you also get into critical speed...
  12. We use a couple PA speakers. Working great for...

    We use a couple PA speakers. Working great for the last 15 years or so. Any decent receiver should do the job. Our problem is it's tough to get FM in the metal building. A big wire antenna in a big...
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    Accufinish wheels are pretty much the same as...

    Accufinish wheels are pretty much the same as flat plated diamond files.
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    +1 on Barkeeper's Friend. That's what we use here...

    +1 on Barkeeper's Friend. That's what we use here on the Accufinish wheels and it works a treat. Also great stuff to keep the coffee pots and stainless clean.
  15. The best numbers I can find online are about 3900...

    The best numbers I can find online are about 3900 lbs. Sounds like risky business. Hit a good bump and things will break.
  16. IMO, preparation is more important than the...

    IMO, preparation is more important than the solder type. Clean pipe, clean fittings and the right flux and temperature. Full insertion.
  17. Rode hard and put away wet, as they say. It could...

    Rode hard and put away wet, as they say. It could be restored to near-new, but IMO there are way better places to start.
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    I have better things to think about. I put it...

    I have better things to think about. I put it where I need to for threading and wherever I feel like for anything else, usually where it was when threading. :)
  19. There are only a couple good sites that cater to...

    There are only a couple good sites that cater to hobbyists, maybe fewer than that, and the traffic is much lower than PM. IMO, PM is the best machining site there is. No reason it can't stay that...
  20. We run one at work, an Atlas Copco I think. It's...

    We run one at work, an Atlas Copco I think. It's oil-less as we can't tolerate any oil, followed by a refrigerated drier. It's all been remarkably trouble-free.
  21. Good size, loads fast. White balance a bit off. :)

    Good size, loads fast. White balance a bit off. :)
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    I don't let anyone near my Lindstrom 8140...

    I don't let anyone near my Lindstrom 8140 cutters. Copper wire only. We have a lot of people around here that like to cut piano wire and found that Aven makes some inexpensive carbide insert cutters...
  23. As a curiosity, the thread wire formulas are...

    As a curiosity, the thread wire formulas are inexact. The error is usually very small but can be significant for certain multi-start threads. W.F. Vogel worked out an exact solution in his book, The...
  24. How do you 'spose they certify the standards? My...

    How do you 'spose they certify the standards? My guess is wires plus optical for the geometry. If the geometry is off, nothing else will matter.
  25. If you can make money in photography, any other...

    If you can make money in photography, any other business should be a piece of cake. I'd certainly do a survey of who your potential customers might be and equip accordingly, not choose equipment for...
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