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WTB - D1-3 Backplate for Adjustable 6-Jaw Chuck

jbacc

Hot Rolled
Joined
May 5, 2009
Location
New Jersey
Good morning , all, I have a nice 8", 6-jaw adjust-tru Buck Chuck that I'd like to use on my recently acquired Monarch 10EE. Looking for a D1-3 backplate that I can mount it on.

Thank you,

Joe
 
Joe, I think you'll find that the "adjust-tru" feature is a part of the Buck's D1-3 backplate ... at least, it is on mine. So, a standard D1-3 backplate won't do what you want.
 
Joe, I think you'll find that the "adjust-tru" feature is a part of the Buck's D1-3 backplate ... at least, it is on mine. So, a standard D1-3 backplate won't do what you want.
Hi Gregg, I actually have the chuck currently mounted on an A1-6 backplate that I use on my Whacheon Lathe. As long as the backplate has a spigot or enough material to machine on the backplate, it will work. The chuck will s a plain back.

Thanks for you input, much appreciated.

Joe
IMG_6111.jpeg
 
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You're very welcome Joe, and glad to help. What I was thinking is that the Buck Ajust-tru backplate is quite thick, so that it enters the chuck body deep enough for the chuck's 4 Adjust-tru screws to bear against. This design makes for a very tight coupling with much reduced overhang.
Measuring my 8.25" Buck, entering the chuck that deep means the D1-3 adapter must be about 1.875" thick. Seems to me most "standard" backplates are considerably thinner than that, and may not work for you. I wonder if you may be able to bolt a D1-3 adapter to your existing A1-6 backplate after some modifications?

BTW, congratulations: you're going to love that chuck!
 
Check out Shars. I just bought one from them for my new Buck 8” 3 jaw. Pretty cheap. Seems like cast iron quality was good. It does need finish machined. I needed to take a few thou off the back face to get the taper fit properly. Then once fit to the spindle, machined the chuck mounting surfaces. Not a bad job.
 








 
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