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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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Chuck mounting question
Hi All,
I am nearing completion of the restoration on my recently aquired 10" Sheldon lathe. As such, i am looking around at my tooling and accessories to see what i can transfer over to use on the Sheldon. The lathe came with what looks to be a decent 3 jaw chuck. I also put my hans on (from a different source) a nice old SB 4 jaw. The backplate on the 4 jaw appears to have the same thread as the Sheldon spindle, except that the portion of the backplate that threads onto the spindle is not as deep. As a result, the spindle threads will hit the back of the chuck before the boss on the back of the backplate seats onto the spindle face. There is a photo that shows the chuck on the spindle as far as it will go, he http://img.photobucket.com/albums/v4...e/PB060003.jpg This shows the 2 different backplates, the 4 jaw is on the left: http://photobucket.com/albums/v479/a...t=PB060008.jpg Note the difference in the depth of both the threaded and the unthreaded portion of the backplates. My question is this: is there any reason that I could not just add a "ring" of sufficent thickness to the 4 jaw plate (screwed or pinned in place) that it would add enough depth to the boss to allow it to seat properly? Or would I simply be better off getting or making a new backplate? Any other ideas? Thanks for any thoughts, AL A. |
#2
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Chuck mounting question
"Al A." wrote in message ... Hi All, My question is this: is there any reason that I could not just add a "ring" of sufficent thickness to the 4 jaw plate (screwed or pinned in place) that it would add enough depth to the boss to allow it to seat properly? Or would I simply be better off getting or making a new backplate? Any other ideas? Thanks for any thoughts, AL A. I would make a new back plate. Although I can't tell from the picture, but it looks like the 4 jaw chuck is one piece. The 3 jaw does have a back plate on it which I can see from the pictures. |
#3
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Chuck mounting question
On Sun, 6 Nov 2005 17:27:47 -0800, "Richard W."
wrote: I would make a new back plate. Although I can't tell from the picture, but it looks like the 4 jaw chuck is one piece. The 3 jaw does have a back plate on it which I can see from the pictures. Thanks for the reply, Richard. It is not clear in the picture, but the threaded portion of the 4 jaw is actually a seperate piece. Not a backplate, per se, but it can be removed and either a replacement made, or a more typical backplate used in place if it. -Al A. |
#4
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Chuck mounting question
My wood lathe chuck came with a spacer ring to seat the chuck on the
spindle face. Works fine. Feel free to turn one for yourself.! Bugs |
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