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    HLV-H Inch/Metric Change Gear Bracket

    This has been mentioned here a few times over the years with some varying answers. What is the purpose of the inch/metric combination change gear bracket? We know that the inch bracket adapts for the various TPI listed in the manual, and it would seem the metric one allows the 127T gear to be...
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    Hardinge 4 Way Quick Change Tool Post - Model A vs L6-B

    Good tip, I didnt know the A version was different. Dont worry, I wasnt going to buy the $700 one, just the first thing that came up that was easy to link for reference.
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    Hardinge 4 Way Quick Change Tool Post - Model A vs L6-B

    Yep That was the L4 base & slide I was thinking of. I guess the part numbering of L6 made me think it was supposed to fit on there. Do you have to use the additional tool blocks (this listing for example: eBay Listing) for workpiece clearance, or can you mount tools directly into the L6-B...
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    Hardinge 4 Way Quick Change Tool Post - Model A vs L6-B

    What (if any) is the difference between a Model A and an L6-B style quick change tool post? They look identical to me in size, function and mounting. On a somewhat related topic, I thought Hardinge used to make a plate that mounted to the cross slide, that accepted a slightly different QC tool...
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    Hardinge DSM-59 Turret - When did 5/8 shank become 3/4

    Glad I paused and asked before applying force. I see the split cotters through the bushings, so now it makes sense that they have to come out first. Agreed, no slide hammering on the lathe! :eek: I agree. I have a few tools that I collected in anticipation of getting the machine, all are 5/8...
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    Hardinge DSM-59 Turret - When did 5/8 shank become 3/4

    My new DSM-59 arrived today. I was looking at the turret and, it is indeed 3/4, but three of the bores have 5/8 bushings. They are not HDB style bushings. I gave them a bit of a tug and they dont seem to want to come out. Is there some trick I am missing? For now, Ill just leave them alone, as I...
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    Hardinge DSM-59 Turret - When did 5/8 shank become 3/4

    I didnt know that. The R was the step pulley version for faster Forward/Reverse changes? Interesting that version was more expensive. Seems like a less complicated setup. I guess one was paying for speed. Did Hardinge halt production on the DV/DSM/HC/HSL around the same time as the HLV...
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    Hardinge DSM-59 Turret - When did 5/8 shank become 3/4

    Thank you all for the information. It seems like 5/8 shank is the most common for B&S screw machine style tooling. Was there a popular manufacturer of screw machines that standardized on 3/4? (If it was common maybe Hardinge got a lot of requests for 3/4 bores so "all my existing tooling will...
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    Hardinge DSM-59 Turret - When did 5/8 shank become 3/4

    Curious when Hardinge switched from 5/8 shank to 3/4 shank for its turret...or was 3/4 some sort of upgrade option? Is there a serial number list for the DV/DSM floating around? I think I read a post where Larry said he had something up to 1966.
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    X axis on the Mitutoyo DRO is not working properly. Any ideas?

    Resurrecting an old one here. I have a Mitutoyo PL-335LZ counter where the X reading has gone out. I know its the counter because the X scale works properly when plugged into the Y & Z pots. Any chance there is a simple repair in there to get it working again? I know its long past its 'sell-by'...
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    Parts Washing Waste & Reclamation

    Currently looking at options to improve and expand our current parts washing setup, for a few hundred parts a day, into either a recirculating manual rinse system or a tank washing system. Strictly soluble coolant. A few questions about the used water: How long does the water & detergent last...
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    Hardinge Special 3/8" Toolholders

    The tool holder may be special but it looks like the insert is standard. Looks like a TPG322. The other one looks like a D style. Try DPG and see what comes up.
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    Whats inside a Brake Dresser?

    Does the Norton #2 brake dresser disassemble the same way as the one shown in the Cape Cod CNC video? I would assume so, but it is not going easily. Figured I would double check before applying extra force. Edit: A note for someone in the future who might have the same question. No, the #2...
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    Material Idenfication for Steel (XRF vs Other)

    I appreciate the suggestions, but both of these companies seem like massive overkill for doing one small sample of steel for a random person.
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    Material Idenfication for Steel (XRF vs Other)

    I dont have a wide range of known tool steels, but being that it is quite a cost effective test, its worth a shot. Indeed they cannot. Thus the question. From my research there are enough differences in the alloying elements of various common tool steels, but their might be a difference between...
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    Material Idenfication for Steel (XRF vs Other)

    I have a piece of mystery steel that I recently used to make some personal parts. I have no traceability as to what specific grade it was, nor do I need a formal certification for a customer - I would just like to know for future reference so I can buy some more of it should the need ever arise...
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    Hardinge D2 Tool Holder Dimensions

    I am looking to replicate the Hardinge D2 style tool holder block, does anyone have one they could measure for me? I have attached a picture of the 5 dimensions I think I need. Yes, I could just calculate the centerline height and make one, but my preference is to duplicate the D2.
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    Hardinge HLV-H brake question

    That does make sense. I too have been slowing the machine down by hand, but I was doing a large run of parts recently and it was bothering me, so I adjusted the brake in a bit and traded one vexation for another. My plastic handwheel broke in transit so I replaced it. The new ones are black...
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    Hardinge HLV-H brake question

    Very interesting. Either this delay is an artifact of the machine or we both have the same issue.
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    Hardinge HLV-H brake question

    The same contactor is activated for both high and low speeds, which is activated by the same cam lobe on the cam shaft. During low speed the contactor activates quickly, but during high speed it stutters. I cannot think of a reason why the same contactor would act differently in this way.
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