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  • Originally posted by The Metal Butcher View Post
    Possibly got "struck" by lightening yesterday? I dunno. I was leveling a lathe, and had my fingers inbetween the lathe and some concrete blocks. I feel a little zap go between my fingers. About 1.5 seconds later I hear thunder. Mom looked at a weather app later and saw that there was a strike about 3/8 of a mile away. The math ads up, and the direction it sounded in is correct. Idk, hard to imagine that lightening could travel 3/8 of a mile though the ground. And then the power was off, so I'm not sure how I would be in the path of least resistance. Maybe I just pinched a nerve. Sure felt electrical though. Idk.
    Voltsge differential between lathe grounding(power ground) and ”ground grounding”
    Location: Helsinki, Finland, Europe

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    • Originally posted by MattiJ View Post

      Voltsge differential between lathe grounding(power ground) and ”ground grounding”
      Yeah, I guess so. Wouldn't the ground stake being not far away negate that? Idk, felt like maybe about 70 volts judging by the 120v shocks I've received.
      21" Royersford Excelsior CamelBack Drillpress Restoration
      1943 Sidney 16x54 Lathe Restoration

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      • A long time ago (1960's) women in the plant were getting shocks from the metal work tables when using 110 V electric screwdrivers. Complaints were random and we checked many times but could never find any voltage between the tools and benches. Finally the power company sent a team out and discovered that a faulty pineapple transformer next to the building was creating eddy currents in the ground under the building's slab. When an eddy found a metal anchor in the slab it zapped the bench and whomever was touching it and the screwdriver at the same time. They replaced the transformer and the problem stopped.
        Last edited by Dave C; 08-11-2020, 05:47 PM.
        “I know lots of people who are educated far beyond their intelligence”

        Lewis Grizzard

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        • Today I received two RS-550 motors to replace the ones from the toy tractor. When I applied voltage I could barely hear it run, and it drew only about 100 mA, even at 20 volts. The "good" motor from the toy is loud and draws about 1 amp. So now I need to pull the gears off the shafts of the bad motors. The new ones have D-shafts with a flat.I guess I'll have to make a tiny 3.175 mm (1/8") gear puller. Something like this:




          http://pauleschoen.com/pix/PM08_P76_P54.png
          Paul , P S Technology, Inc. and MrTibbs
          USA Maryland 21030

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          • What did I do today?.......… Ummm, not much....
            You may only view thumbnails in this gallery. This gallery has 1 photos.
            If it wasn't done the hard way, I didn't do it.

            Lillooet
            British Columbia
            Canada.

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            • Worked for a while in a blown film extrusion plant, I don’t think I’ve had as many really nasty shocks as there, the plastic was extruded into a giant 50 foot vertical sausage, run through nip rolls and back down to a winding station, the coils were 2-300 kg, every time I changed a coil I got blasted, sparks 2” long
              they even went through gloves, it was horrible, still beats being struck by lightning, even a line surge
              mark

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              • We had a heck of a windstorm with an inch of rain last night. Tree limb down (biggish one 12" diameter or so) into the street a bit down the block, so I got a bit of exercise cutting off all the stuff that was into the street and hauling it around out of the way so the neighbors could get through. (most of the neighbors here are not aware that things can be fixed, and do not have saws, etc).

                It is a city tree, so they will be coming to clear it away eventually, assuming my neighbor calls it in.



                Nice archway over the drive, but maybe not so secure.... that area is basically bark and a little actual wood. It's propped pretty well, but that and five bucks will get you coffee somewhere.

                Last edited by J Tiers; 08-11-2020, 07:31 PM.
                2730

                Keep eye on ball.
                Hashim Khan

                Everything not impossible is compulsory

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                • Finished making an expanding mandrel for the lathe spindle. Borrowing an idea from Joe Pie, it uses o-rings. The rings are squished between rings of steel when you tighten it, thus grabbing the spindle tight enough to spin it. The mandrel itself is hollow, using an Allen wrench and another wrench to allow tightening from the outboard end. The inboard end is blind and no access anyway.

                  I setup one end to take a change gear, allowing simple indexing. Eventually It will be doing fancy indexing, following GHT's book in theory, (versatile dividing head) but I probably won't be able to obtain and use castings -- I'll have to fab something.

                  Eventually I should just get some good pics and post all this stuff on the shop made tools thread -- I'm cranking things out at the rate of about one a week now.
                  Last edited by nickel-city-fab; 08-11-2020, 07:45 PM.
                  25 miles north of Buffalo NY, USA

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                  • Jerry,
                    That looks like a Silver Maple. It's the #2 hazard tree; one that falls and kills people. Looks like a co-domainate (actually a tri-domainate) stem failure. They're beautiful in the fall but very brittle and subject to rot.

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                    • It rotted right enough.

                      Interesting, I was not aware of their brittleness, around here it is Bradford pear (everyone seems to have put them in) and Sycamore. The Sycamore down the street dropped three big limbs and was finally taken down. One 18" limb squashed a car, one fell clear of everything, and the last took out power.

                      Back home, when I was a kid, mt parents put in a Silver maple, which as far as I know never dropped anything. But, it was short lived, only about 50 or so years, and is gone now, the Norway Maple that was already a big tree then is only now getting to be old and something of a problem. It may have to be removed. I don't recall the bark on that Silver Maple being like this tree, but I am not a tree person, I know more about ornamental shrubs and perennials.

                      The rot in this maple



                      2730

                      Keep eye on ball.
                      Hashim Khan

                      Everything not impossible is compulsory

                      Comment


                      • I got a pneumonia vaccine in my right deltoid and the 1st of two shingles vaccine in my left deltoid at 10 am today.
                        Never have I had so much pain from injections. I am virtually helpless. Neither Voltarin or acetaminophen are helping much.
                        Hope tomorrow is better.

                        Update ...24 hours later my right arm is still useless and extraordinarily painful. Left arm showing some improvements.
                        I can’t even lift a cup of coffee without wincing. Tens machine offered a little help.
                        I had major chills and shakes last night and wore long PJs and 2 t-shirts in bed.

                        Don't get these shots at the same time.
                        Last edited by Tim The Grim; 08-12-2020, 12:19 PM.
                        Illigitimi non Carborundum 😎
                        9X49 Birmingham Mill, Reid Model 2C Grinder, 13x40 ENCO GH Lathe, 6X18 Craftsman lathe, Sherline CNC mill, Eastwood TIG200 AC/DC and lots of stuff from 30+ years in the trade and 15.5 in refinery unit operations. Now retired. El Paso, TX

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                        • made fig jam and installed some installation in our Honda Pilot

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                          • Paul, I did not have good results with D shape shafts. The splined ones were the ticket with the 8 tooth brass gears in my quad.
                            Perhaps there’s some extra Loctite flowing around you could use.🤔
                            Illigitimi non Carborundum 😎
                            9X49 Birmingham Mill, Reid Model 2C Grinder, 13x40 ENCO GH Lathe, 6X18 Craftsman lathe, Sherline CNC mill, Eastwood TIG200 AC/DC and lots of stuff from 30+ years in the trade and 15.5 in refinery unit operations. Now retired. El Paso, TX

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                            • Originally posted by mattthemuppet View Post
                              made fig jam and installed some installation in our Honda Pilot
                              Did you, perchance, install some INSULATION in your car? It's possible that you made an installation and put it in the car. ** Or did you install some fig jam?


                              Dan
                              ** from websters: Installation: Noun. 2) a large piece of equipment installed for use, as in "computer installations".

                              At the end of the project, there is a profound difference between spare parts and left over parts.

                              Location: SF East Bay.

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                              • doh, installation on the brain! Yes, installation of some insulation (sound and heat) Finished the 3rd row, trunk and trunk lid this morning, next up are the doors.

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