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  #11  
Old 05-05-2022, 01:03 AM
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I was amazed to watch these Paki guys rebuilding lead batteries from scratch, running a lead foundry in long skirts and sandals.

The most amazing 3rd world health video ever:
The Dentist of Jaipur.

https://youtu.be/WR8tIjTykbE
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  #12  
Old 05-05-2022, 05:17 AM
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I watched one once where a guy welded up a couple of missing teeth on a ring gear for a truck differential, stick welded the teeth not chipping slag between passes then used a 4.5" grinder to "machine" them to size. Would be interesting to know just how long repairs like that last, the teeth broke off when the ring gear was machined, heat treated and ground. The repair would be full of porosity, soft as butter and not on size, I wouldn't think it would not be a long term repair, maybe with the right driver it would last for a while LOL!
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  #13  
Old 05-05-2022, 06:46 AM
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Yeah, I don't have high hopes for that kind of thing, myself. It's like filler on a car panel.

2 things strike me having seen fastner production machines. Am amazed at want they accomplish.

The second and most concerning is who the hell is buying and selling production pieces like this.

Everyone worries about china's production, methods, and materials. At least to their credit, they have CNC at hand.

BTW get a load of the size of the chain links, hell would love to see those made.

Can you imagine a Harley chain drive using those LMAO

Anyway fastanating to see, the Flinstones at work.
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  #14  
Old 05-05-2022, 08:26 AM
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Quote:
Originally Posted by tigman250 View Post
I watched one once where a guy welded up a couple of missing teeth on a ring gear for a truck differential, stick welded the teeth not chipping slag between passes then used a 4.5" grinder to "machine" them to size. Would be interesting to know just how long repairs like that last, the teeth broke off when the ring gear was machined, heat treated and ground. The repair would be full of porosity, soft as butter and not on size, I wouldn't think it would not be a long term repair, maybe with the right driver it would last for a while LOL!
I have done this on a baler when 3 teeth were broke off the ring gear. I put the welded teeth on the backstroke and it baled many bales after that.
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  #15  
Old 05-05-2022, 07:33 PM
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There's one where they fix an 8' loader tire with a big chunk out of the tread.

You wanna get black? There's a blackface job, grinding rubber for 3 hours to prep the inside and outside patch.

If you haven't watched "the Dentist" yet, don't watch it right before a meal.
But do not miss it.

Some real down home handiwork.
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  #16  
Old 05-17-2022, 09:40 AM
threepiece threepiece is offline
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Originally Posted by JohnBoy View Post
If at first you don't succeed. Get a bigger hammer
Sometimes it’s the other way around. Depending on the mass of the object being struck a smaller hammer sometimes works better.

Years ago a fellow (who happened to be an engineer) approached me needing help removing screws that attached a trim to an auto body. I described a technique using a hammer and chisel to turn the screw head.

He came back some time later with a hammer in hand saying it didn’t work. He gave me a questionable look and began to argue when I told him his hammer is too big. Rather than argue I got a much smaller hammer and managed to loosen all four screws with less than 10 hammer blows, he was amazed.

Here we have what is one of the oldest tools in history and yet is still often misunderstood by so many.
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