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Re: Quick Change Post


James Rice
 

I have a Phase II AXA piston type on my AC12x36, an A2Z CNC piston type aluminum QCTP on my AC6x18, a CDCO Bostar AXA wedge type on my South Bend 9A and a Bostar CXA wedge style on my South Bend 16".? I actually prefer the holders from CDCO over the Phase II as they fit tighter on the dovetails and seem to be more stable when clamped.? I also have noticed th Phase II piston type under a heavy cut does sometimes move a tiny bit which is something I never have seen on the wedge post.? One some early purchases of spare AXA blocks from CDCO i had to replace the Chinese eset screws as the hex socket stripped out but anything I"ve bought in the past 6 years hasn't had that issue.? ?The CXA tool post set is as rigid as any other I"ve seen including real Aloris posts.

I'm looking at some blocks both AXA and CXA from All Industrial that are called XL blocks and allow larger tooling to be clamped that the normal AXA 101 and 102 blocks allows.? The XL blocks for the CXA post will allow tool shanks of 1" square to be clamped as opposed to th 3/4" of the standard block.? There is a lot of large shank tooling out there at surplus pricing that I could use with tool holder blocks that holds larger shanks.

In the near future I'm going to replace the A2Z post with a OXA cast iron post set as I'm not pleased with the flexibility of the aluminum post set.? Plus A2Z is defunct and sooner or later supplies of blocks will dry up.? I know UI can make them myself but I'd rather spend my all too scarce shop time making parts for projects instead of making tooling I can buy down the street.? As it is my shop time is an hour here and two hours there stolen from either playing hooky from class or work or squeezed in between 11pm and 1am when I probably should be sleeping.

James

On Thu, Feb 7, 2019 at 6:24 AM Andrei <calciu1@...> wrote:
You are right about the Yuasa piston. It is the only one that i know of that is acceptable. For all other imports just get wedge.

Get


From: [email protected] <[email protected]> on behalf of Robert Downs via Groups.Io <wa5cab=[email protected]>
Sent: Thursday, February 7, 2019 1:28:16 AM
To: [email protected]
Subject: Re: [atlas-craftsman IO] Quick Change Post
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In most Chinese cases I would agree with you.? But how badly depends upon the size and shape of the piston.? Most of the Chinese made piston-type tool posts have a very small round piston.? The Yuasa, which was I think the first piston type made some 40 odd years ago, has a larger rectangular piston.? I bought one new 38 years ago (when the cost in 2019 Dollars was about three times what the CDCO one costs today) and have never felt that it was inferior to the wedge type.? Fortunately, the holders will fit either type.

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Robert Downs

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From: [email protected] [mailto:[email protected]] On Behalf Of Andrei
Sent: Wednesday, February 6, 2019 20:45
To: [email protected]
Subject: Re: [atlas-craftsman IO] Quick Change Post

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Piston sucks. Get wedge

Get

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From: [email protected] <[email protected]> on behalf of Stan Gorodenski <stanlep@...>
Sent: Wednesday, February 6, 2019 9:43:21 PM
To: [email protected]
Subject: Re: [atlas-craftsman IO] Quick Change Post

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Kurt,
I looked in CDCO, , but I cannot copy a link to the post
and tool holders because the page I am looking at doesn't have a link to
it. However, it is item #29461 and includes the quick change post and 5
tools holders. It is called
AXA Piston Type Tool Post for Lathe up to 12"
and in the description it specifically says it fits an Atlas 10" and 12"
Stan

On 2/6/2019 1:26 PM, Kurt Sierens wrote:


I would go with an AXA.? I bought mine from CDCO (Bostar) and it has
worked out well.

Kurt S.

*From:* [email protected] <[email protected]> *On
Behalf Of *Stan Gorodenski
*Sent:* Wednesday, February 6, 2019 3:24 PM
*To:* [email protected]
*Subject:* [atlas-craftsman IO] Quick Change Post

I have the Atlas 10" lathe. I do not know what the center to center is,
but the bed length the carriage rides on is almost 36" from where it
meets the headstock to the end of the bed. In this group it had
previously been determined that it is of vintage 1957 or so.

I would like to replace the rocker tool holder with a quick change tool
holder. Can anyone recommend a good one for this lathe?
Stan

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