Bar whip in a lathe

Thank you! Good example of how a simple job can get out of hand. Recognizing the potential for danger, and the appropriate measures to take before hand, is one of many things that separates the apprentice from the journeyman.
 
I had that happen once with a 3/4" copper bar, it didn't tear anyone's tool box or hurt anyone, but did a bit of damage to the lathe guards.
 
That lathe was dancing! That was wrong on so many levels. Fortunately, no one got hurt.
 
My understanding after talking with people at OSHA is that this happens more often then people think. nobody was hurt, which means it likely wasn’t reported.

I have a couple of unsubstantiated opinions about what I see here...so, food for thought.

1) The only thing you can see wrong in this setup is a simple roller stand and absence of substantial sleeve or bushing support.

2) The shop is immaculate! Which tells me that management values appearance over function. The setup of a lathe where rotating stock is IN a pedestrian aisle is mind blowing from a management perspective. This reeks of management negligence.

I’ll bet that when the OSHA guys see this video, this shop gets a knock on their front door.


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Indeed the outboard stand is there but is not supporting the shaft. I have used this same setup many times in my career but the stand was under the shaft adjusted slightly higher than the spindle center line......no problems.
 
A classic illustration of the tail wagging the dog.

Looks to me like the operator forgot to put the support stand in place. It starts out standing beside the work piece, but not supporting it. Also wondering if he hit the emergency stop button or just the emergency slow down button.

Tom
 
@higgite, if you watch closely the machine is walking away from him as he is trying to find the button.


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@higgite, if you watch closely the machine is walking away from him as he is trying to find the button.


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vctnc, I saw that, but I’m afraid I don’t get your point. My comment about which button he hit in the heat of battle was referring to the machine continuing to slowly rotate after he had assumedly hit a stop button. A perhaps feeble attempt at humor on my part.

Tom
 
Yes, classic case of the tail wagging the dog. Good thing it didn't turn into a classic case of the operator's pony tail wagging the dog...

-frank
 
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