Aloris AX QCTP and BX tool holders -- go figure
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  1. #1
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    Default Aloris AX QCTP and BX tool holders -- go figure

    My 1948 9A inexplicably came with (what I now believe to be) an old Aloris AX tool post and six BX holders.

    aba-bxa-set.jpg

    I used the AXA and BXA dimensions given by Rich Carlstedt in an old PM post and drew the dovetails in AutoCAD, printed them, and cut them out. Using these precision gauges, I determined the QCTP is definitely AXA size and the holders are definitely AXB size.

    Only one on the holders is marked Aloris.

    bx-holder.jpg

    Several of the tool holders had tooling in them, and all were covered with chips, so I have to assume they were being used on the lathe.

    One of the holders -- second from the left -- has a shim welded to it.

    I want AXA holders -- and a non-piston tool post, eventually. Anyone want the BX holders?

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    Quote Originally Posted by Yan Wo View Post

    I want AXA holders -- and a non-piston tool post, eventually. Anyone want the BX holders?
    I could use some BX holders. What do you want for them?

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    I have a full AXA QCTP, piston type, that I bought for my smaller lathe and never used. It has a bunch of toolholders. I think it's a chinese thing, but it looks very nice and tight (not binding).

    I was planning to put this up on ebay to move it along.

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    Show a side pic od that parting holder...if it's what I think it is its the best one ever made IMO....can you tell if the slot is slightly angles to accommodate tapered style blades?

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    Quote Originally Posted by iwananew10K View Post
    Show a side pic od that parting holder...if it's what I think it is its the best one ever made IMO....can you tell if the slot is slightly angles to accommodate tapered style blades?
    There is a slight dovetail on the bottom of the blade locating slot.

    bxa-cutoff-tool-holder.jpg

    bxa-cutoff-tool-holder-2.jpg

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    pretty sure that is old Dorian or DTM...if one has the right blades those rock.

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    Those are nice because they pull the blade in and down, those that have a flat gib and screws on top have a tendency to roll the blade out at the top if you aren’t fussy with it


    Sent from my iPhone using Tapatalk Pro

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    Went to PM you back but your inbox is full... If the other guy doesn’t take them I will. Thanks

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    Mystery deepens!

    More careful examination revealed that the tool post is AX size, but only ONE of the holders is BX. That's the one marked Aloris. The others are neither AX nor BX, so I still don't know what I have.

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    Quote Originally Posted by Yan Wo View Post
    Mystery deepens!

    More careful examination revealed that the tool post is AX size, but only ONE of the holders is BX. That's the one marked Aloris. The others are neither AX nor BX, so I still don't know what I have.
    How are the others different? What are the measurements of the dovetails?

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    Quote Originally Posted by Brodytonelotti View Post
    How are the others different? What are the measurements of the dovetails?
    The five no-name holders all differ slightly. The dovetail is 60* included angle on all of them and the width is a tight BX. They mostly differ in the depth of the dovetail, from 50 to 120 thousandths shallow.

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    Likely just someone's home brewed BXA...wedge a couple same size dowels that contact about the halfway point of the dovetails and use a caliper to get a rough measure.

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    Quote Originally Posted by iwananew10K View Post
    Likely just someone's home brewed BXA. ...
    I thought that, too, but if you had the capability to make your own how could you possibly miss by 50 to 120 thousandths?


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