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Old 12-14-2017, 10:16 AM
threepiece threepiece is offline
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Default Almost Broke My Hand

I was installing a 12" four jaw chuck on the lathe. I have blocks of wood suitable for this near the machine but others who don't know what they are sometimes "borrow" them. I was blockless.

I was almost in when the floor mat I was standing on shifted. If the hit was one inch closer to my knuckle it would have likely broken one or more metacarpal bones.
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Old 12-14-2017, 10:47 AM
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That's ugly.
You may be getting to the point of having a little strongarm attached to the wall with a L shaped piece of stock for the chuck to clamp onto. Then you can swing it over to a shelf.
I have an 8" to take on and off and is getting to be something I avoid.
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Old 12-14-2017, 11:16 AM
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Both my bigger lathes have cranes for loading Chucks and larger jobs into them .For the larger lathes I make each chuck a loading holder that balances the chuck for easy installing and is used to store the chuck when it it is not on the lathe.
Even the little 9 inch Southbend chucks can hurt if you are careless with them so I keep a piece of plywood that goes across the ways when changing chucks on it. These things have saved my azz more than once.
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Old 12-14-2017, 12:26 PM
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Ouch. Good reminder for everyone else to rig up some sort of lifting system.


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Old 12-14-2017, 01:07 PM
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Quote:
Originally Posted by Ironman View Post
...You may be getting to the point of having a little strongarm attached to the wall with a L shaped piece of stock for the chuck to clamp onto. Then you can swing it over to a shelf.
I have an 8" to take on and off and is getting to be something I avoid.
The 4-jaw for my lathe is a 10". I can still boost it up on to the lathe when I need to change it but it definitely is gaining weight as I find it's getting harder and harder to do. I'm working on the idea of a simple little crane that will serve both my lathe and mill.

As for actually grabbing the chuck I prefer a hook like the one shown in the photo. You get a positive grip on the chuck and it's easy to get the balance just right. Some chucks come with threaded holes for attaching lifting eyes but they only give you a fixed lifting position and I have found over the years that they don't always line up the pins or threads. This means you have to have a way to support the chuck while you actually slide it into position or start the threads. With a hook you can tighten the jaws for positive control while you're lifting and then loosen them slightly so the chuck can rotate a bit for final alignment and mounting...
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Old 12-14-2017, 02:30 PM
threepiece threepiece is offline
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Quote:
Originally Posted by toprecycler View Post
Ouch. Good reminder for everyone else to rig up some sort of lifting system.


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Yes, that's good advice, but I think more importantly to pay attention to our footing. The reality is many of us will continue to do certain things the difficult or dangerous way for one reason or another.

I did not see this accident coming, I hope others that read this will.
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  #7  
Old 12-14-2017, 03:43 PM
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Quote:
Originally Posted by LKeithR View Post
The 4-jaw for my lathe is a 10". I can still boost it up on to the lathe when I need to change it but it definitely is gaining weight as I find it's getting harder and harder to do. I'm working on the idea of a simple little crane that will serve both my lathe and mill. As for actually grabbing the chuck I prefer a hook like the one shown in the photo. You get a positive grip on the chuck and it's easy to get the balance just right. Some chucks come with threaded holes for attaching lifting eyes but they only give you a fixed lifting position and I have found over the years that they don't always line up the pins or threads. This means you have to have a way to support the chuck while you actually slide it into position or start the threads. With a hook you can tighten the jaws for positive control while you're lifting and then loosen them slightly so the chuck can rotate a bit for final alignment and mounting...
Just thinking, a free spinning sleeve on the section for the chuck to grip on would be nice. Let you spin the chuck to line up pins, or to turn a threaded chuck onto the spindle.
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Old 12-14-2017, 05:01 PM
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Grey, I was thinking the same thing. you beat me to it.
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  #9  
Old 12-14-2017, 08:48 PM
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My home made holders are made from 1 inch square tubing some have a free turning pin others have a slip on keeper that picks up the back of the chuck and prevents it from coming off the holder others grab one of mount pins on the D1-6 chucks. What I do not want is a chuck in free fall because I did not tighten it properly on the pin. once the chuck is cleaned and ready to mount I remove the safety restraint and mount it.
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Old 12-14-2017, 09:13 PM
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My 3 jaw is a 8" but it is also getting harder to remove/install. A lift would be the smart thing to do, if I can remember to do it.
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