New graduated dial for Grizzly G9972Z 11x26 lathe

Well, I just ordered another graduated dial for the compound slide on
my CQ6128A / G9972Z lathe.
My thought is to face off the top surface of the dial and thereby
lower my Aloris AXA toolpost. Right now, the toolholder is just about
hitting the top of the compound slide, and it can't go much lower.
Also, this should get the boss closer to the top of the cross slide,
adding to it's rigidity....
Reply to
Louis Ohland
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But it still brings the top of the tool to spindle center line? If so -- why bother shortening the compound? I would only do that if the tools could not be lowered to centerline height -- not if they could while almost touching the compound.
And what does removing material from the *dial* do for you? Do you mean removing material from the casting to which the dial is mounted?
Perhaps so -- if you don't remove metal needed to add to the rigidity.
Good luck, DoN.
Reply to
DoN. Nichols
DoN, I'm using 1/2" shank tools in the toolholder, and I've got the toolholder just below the top of the toolpost. Yeah, it makes the centerline, but if I ever get the AXA-77 cut-off toolholder, it looks to have a cutting edge higher than my indexable toolbit.
Facing the top of the dial will bring the compound slide lower without having to machine any cast iron.
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You will see the top of the graduated dial peeking out of the clamping ring. How does the present height of the graduated dial add to the rigidity of the compound slide? The bottom of the boss is above the clamping ring, meaning any side thrust will be opposed by the three screws which fasten the dial onto the boss.
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Besides, the idea behind getting a second dial is that I can swap the original back in if I need to.
D>> Well, I just ordered another graduated dial for the compound slide on
Reply to
Louis Ohland
It looks to me like you could you make a much lower one-piece base disk that attaches to the compound and use 4 studs in the saddle slots to clamp it at the edges. Then you could lower the compound until the central post just clears the carriage. Since the carriage and compound have straight edges you can set it for threading with a 30 degree angle block.
Jim Wilkins
Reply to
Jim Wilkins
Hmm ... in my experience (with the BXA sized toolpost and holders), the Aloris cutoff tool holder has the same height above the bottom of the tool holder as the other full-height tools clamped in their holders, so this may not be at all necessary. Determine that before you bother modifying the lathe.
So -- *that* is what you were talking about. To me, a "dial" surrounds the crank or wheel on a leadscrew. I would have called this an "index disk", I think, not a "dial".
Yes -- I see that -- now that I know that you are not talking about what I call a "dial". :-)
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O.K. But as I said -- I don't think that this is necessary at all. But having the spare, you can do it when you get the cutoff holder. BTW, I find the 'T' profile inserts by Cleveland to be the best, if you take care to make sure that it is upright.
Enjoy, DoN.
Reply to
DoN. Nichols
DoN, the manufacturer calls it a "Graduated Dial" CQ6126-07-26
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no matter what I think, this is what Grizzly will ship to me when it comes in... another 4-6 weeks...
"T" profile inserts by Cleveland? You mean a "T" blade?
D>> DoN, I'm using 1/2" shank tools in the toolholder, and I've got the
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Reply to
Louis Ohland
My ultimate intent is to replace the cheesy clamp ring with a plate. I'm not too sure that I'll lower the compound more than 1/4" or so. Some problems with re-mounting my Y-axis DRO scale on my X3. More in another post.
Jim Wilk> It looks to me like you could you make a much lower one-piece base
Reply to
Louis Ohland
O.K.
Yep. Did I say inserts? I meant blade.
They are expensive, but give me a lot better results.
Enjoy, DoN.
Reply to
DoN. Nichols

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