Date   

Re: stuck chuck

Bill in OKC too
 

Clean the internal threads on the chuck, external threads on the spindle, and lightly lube it every time you remove the chuck, AND every time you reinstall it, cross everything you can cross, and pray to every deity you like. It will at least help. So does holding your tongue just right. ;)

HTH!

Bill in OKC


William R. Meyers, MSgt, USAF(Ret.)


A human being should be able to change a diaper, plan an invasion,
butcher a hog, conn a ship, design a building, write a sonnet, balance
accounts, build a wall, set a bone, comfort the dying, take orders,
give orders, cooperate, act alone, solve equations, analyze a new
problem, pitch manure, program a computer, cook a tasty meal, fight
efficiently, die gallantly. Specialization is for insects.
LAZARUS LONG (Robert A. Heinlein)





On Monday, January 13, 2020, 09:44:16 PM CST, Stephen Bartlett via Groups.Io <tower.op@...> wrote:


Is there anything that can be done to prevent a chuck from sticking?

Other than not socking it tightly to begin with.

Maybe some sort of shim, maybe Teflon, a few thou thick, if it is rigid enough to not deflect.

Steve Bartlett




Re: stuck chuck

Stephen Bartlett
 

Is there anything that can be done to prevent a chuck from sticking?

Other than not socking it tightly to begin with.

Maybe some sort of shim, maybe Teflon, a few thou thick, if it is rigid enough to not deflect.

Steve Bartlett


Re: 9A Bed Profile

Jim_B
 

One big point for the MLA kit is that the ID is much much bigger than any commercial unit.

Sent from my iPhone-8
Jim B,

On Jan 13, 2020, at 8:42 PM, Jim_B <jim@btdtrf.com> wrote:

FWIW, and consider this just a suggestion , I have made an 9” Workshop MLA steady and a 1/2 dozen dial indicators for both the 9” and the Heavy 10.
In both projects I only used a single 90o VEE.










I used a horizontal mill for the VEE.

Sent from my iPhone-8
Jim B,

--
Jim B



<Acumulator and RestW.jpg>
<Milling Vee Pic 17_1_1_sfw.jpg>
<9-in-finished.jpg>
--
Jim B


Re: 9A Bed Profile

mike allen
 

        sound interestin . I think price will be the big factor . all the steadys I've found for my lathe are more than I bought my lathe for

        animal

On 1/13/2020 6:20 PM, George Meinschein wrote:
Very interesting. I've had an idea rumbling around in my head to do the initial thinking about a "universal" steady rest that seats on a brand & size specific mount.  One steady rest and multiple mounts to cover different makes & models.  Didn't get into sketching anything yet or checking dimensions. Was thinking about casting in aluminum or making from a strip of flat stock bent into the correct shape. 

Thanks,
George H. Meinschein, P.E.

Meinschein Engineering Consultants, LLC
150 Brittany Drive
Freehold, NJ 07728-1500

Email: george.meinschein@...
Direct Dial: 732-409-0778
Cell: 732-580-1736
Fax: 732-358-0369
www.meinscheinengineering.com

   

On Mon, Jan 13, 2020, 8:14 PM mike allen <animal@...> wrote:

        I have a steady rest & a carriage stop in my mind

        animal

On 1/13/2020 5:02 PM, George Meinschein wrote:

Animal,

Whatcha making with that profile info?

Thanks,
George H. Meinschein, P.E.

Meinschein Engineering Consultants, LLC
150 Brittany Drive
Freehold, NJ 07728-1500
Direct Dial: 732-409-0778
Cell: 732-580-1736
Fax: 732-358-0369
www.meinscheinengineering.com
On 1/13/2020 7:53 PM, mike allen wrote:

            thank ya much

    animal

On 1/13/2020 3:13 PM, Chips wrote:
Some caliper measurements for you. It's difficult to measure the ways on the end as they run to the side.  So from my sketch you'll add up all the features and it doesn't agree with the full width of the bed. Maybe you can get what you need from the sketch.


Re: 9A Bed Profile

carbure2003
 


If you plan on machining steady rest bases, your depth of cut for the V is about 1/4”.  I just checked my tailstock way template I used in order to re condition SB 9A and 10K.
 
I measured a depth of cut of 0.247” on the V.
 
Guy Cadrin
 
Please note: message attached

From: "George Meinschein" <bustedguns@...>
To: SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] 9A Bed Profile
Date: Mon, 13 Jan 2020 21:20:28 -0500



____________________________________________________________
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Re: 9A Bed Profile

George Meinschein
 

Very interesting. I've had an idea rumbling around in my head to do the initial thinking about a "universal" steady rest that seats on a brand & size specific mount.  One steady rest and multiple mounts to cover different makes & models.  Didn't get into sketching anything yet or checking dimensions. Was thinking about casting in aluminum or making from a strip of flat stock bent into the correct shape. 

Thanks,
George H. Meinschein, P.E.

Meinschein Engineering Consultants, LLC
150 Brittany Drive
Freehold, NJ 07728-1500

Email: george.meinschein@...
Direct Dial: 732-409-0778
Cell: 732-580-1736
Fax: 732-358-0369
www.meinscheinengineering.com

   

On Mon, Jan 13, 2020, 8:14 PM mike allen <animal@...> wrote:

        I have a steady rest & a carriage stop in my mind

        animal

On 1/13/2020 5:02 PM, George Meinschein wrote:

Animal,

Whatcha making with that profile info?

Thanks,
George H. Meinschein, P.E.

Meinschein Engineering Consultants, LLC
150 Brittany Drive
Freehold, NJ 07728-1500
Direct Dial: 732-409-0778
Cell: 732-580-1736
Fax: 732-358-0369
www.meinscheinengineering.com
On 1/13/2020 7:53 PM, mike allen wrote:

            thank ya much

    animal

On 1/13/2020 3:13 PM, Chips wrote:
Some caliper measurements for you. It's difficult to measure the ways on the end as they run to the side.  So from my sketch you'll add up all the features and it doesn't agree with the full width of the bed. Maybe you can get what you need from the sketch.


9A Bed Profile

Jim_B
 

FWIW, and consider this just a suggestion , I have made an 9” Workshop MLA steady and a 1/2 dozen dial indicators for both the 9” and the Heavy 10.
In both projects I only used a single 90o VEE.










I used a horizontal mill for the VEE.

Sent from my iPhone-8
Jim B,

--
Jim B


Re: 9A Bed Profile

mike allen
 

        I have a steady rest & a carriage stop in my mind

        animal

On 1/13/2020 5:02 PM, George Meinschein wrote:

Animal,

Whatcha making with that profile info?

Thanks,
George H. Meinschein, P.E.

Meinschein Engineering Consultants, LLC
150 Brittany Drive
Freehold, NJ 07728-1500
Direct Dial: 732-409-0778
Cell: 732-580-1736
Fax: 732-358-0369
www.meinscheinengineering.com
On 1/13/2020 7:53 PM, mike allen wrote:

            thank ya much

    animal

On 1/13/2020 3:13 PM, Chips wrote:
Some caliper measurements for you. It's difficult to measure the ways on the end as they run to the side.  So from my sketch you'll add up all the features and it doesn't agree with the full width of the bed. Maybe you can get what you need from the sketch.


Re: 9A Bed Profile

George Meinschein
 

Animal,

Whatcha making with that profile info?

Thanks,
George H. Meinschein, P.E.

Meinschein Engineering Consultants, LLC
150 Brittany Drive
Freehold, NJ 07728-1500
Direct Dial: 732-409-0778
Cell: 732-580-1736
Fax: 732-358-0369
www.meinscheinengineering.com
On 1/13/2020 7:53 PM, mike allen wrote:

            thank ya much

    animal

On 1/13/2020 3:13 PM, Chips wrote:
Some caliper measurements for you. It's difficult to measure the ways on the end as they run to the side.  So from my sketch you'll add up all the features and it doesn't agree with the full width of the bed. Maybe you can get what you need from the sketch.


Re: 9A Bed Profile

mike allen
 

            thank ya much

    animal

On 1/13/2020 3:13 PM, Chips wrote:
Some caliper measurements for you. It's difficult to measure the ways on the end as they run to the side.  So from my sketch you'll add up all the features and it doesn't agree with the full width of the bed. Maybe you can get what you need from the sketch.


Re: 9A Bed Profile

Chips
 

Some caliper measurements for you. It's difficult to measure the ways on the end as they run to the side.  So from my sketch you'll add up all the features and it doesn't agree with the full width of the bed. Maybe you can get what you need from the sketch.


Craigslist Lathe Cabinet - MA

Payson
 


Re: stuck chuck

Chips
 

There are so many variants of these lathes that I'm sure as pointed out this method won't work on every one. On this one there is a big cast lug on the bull gear opposite the locking pin. I imagine it was added to the gear casting for balance. The forces to unscrew the chuck aren't very great. With the brass rod shown, a little pop on it with the palm loosens it. The enclosed headstock casting is at least 1/4" thick so it has a lot of mass to absorb the impact.


Re: stuck chuck

rrwf@...
 

Well, here's one more.  I didn't like the idea of stressing the jaws by using them as a pressure point, and, anything that involves the backgears was a non-starter.  I finally found two strap wrenches that use woven cloth for the strap, not the rubber type you find at Hardly Finished or Home Depot. The woven cloth straps, once broken in, do not have the problem of stretching on each application of pressure.  Granted, there is a minute amount of give but nothing compared to the rubber type.  I wrap one wrench strap around the large cone pulley and use the other on the chuck.  I rotate the chuck so there is enough tension to hold the wrench on the pulley after its handle comes to rest on the casting.  I then heat the back plate near the threads using an electric heat gun.  After a few minutes, I put as much tension as I can on the wrenches and use a deadblow hammer to work the chuck loose.  This allows for a one man operation, but if help is available, a lot more tension can be put on the chuck by one person as the other works the hammer.


Re: stuck chuck

eddie.draper@btinternet.com
 

Me too!  Also, I note that the illustrated machine has V belt drive and there appeares to be a gap between the pulley and the gear.  Our 14.5" has flat belt and no gap.  Ideas anyone?  I have a rather seriously stuck chuck at present, as it started to unscrew when I switched off, so to prevent it going flying, I switched back on again rather hurriedly and it seated in place with a significant bang.

I would caution against using the front diaphragm of the headstock casing as a reaction point, as it is a rather thin casting.  Whatever you do, keep the forces acting dead in line through it and do not drive a wedge between it and the bull gear, or you may fracture it out.  The dog for the bull gear to mandrel connection on the 14.5" is on the outer end, and the only exposed part is a rather slender handle that I would hesitate to use for this.

Hoping to upgrade to a similar size machine with Camlock!

Eddie


On Sunday, 12 January 2020, 19:14:49 GMT, Steven Schlegel <sc.schlegel@...> wrote:


Is the shaft square in that area, or do you get leverage off the pin? I am trying to figure out how it works.

Steven


From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> on behalf of Chips <sakr4360@...>
Sent: Sunday, January 12, 2020 9:21:36 AM
To: SouthBendLathe@groups.io <SouthBendLathe@groups.io>
Subject: Re: [SouthBendLathe] stuck chuck
 
Newb here, first post.
Mine was stuck when I got it due to sitting for 20+ years and yes I broke a tooth on the back gear.
Make one of these from 1/4 thick plate then put it on the bull gear opposite side of the little push pin that engages the pulley. Then you can crank on the chuck.
You can thank me later.


Machining Lathe - general for sale - by owner on Craigslist Jersey Shore

George Meinschein
 

Hey all,
FYI-This 16" x 8' UMD lathe has been on Craigslist for a while now. $995. I have no idea as to it's condition other than what the ad says, but I can see that it has a micrometer stop, taper attachment, and thread dial. 

https://jerseyshore.craigslist.org/for/d/farmingdale-machining-lathe/7035785759.html

Thanks,
George H. Meinschein, P.E.

Meinschein Engineering Consultants, LLC
150 Brittany Drive
Freehold, NJ 07728-1500

Email: george.meinschein@...
Direct Dial: 732-409-0778
Cell: 732-580-1736
Fax: 732-358-0369
www.meinscheinengineering.com

   


Re: stuck chuck

Steven Schlegel
 

Is the shaft square in that area, or do you get leverage off the pin? I am trying to figure out how it works.

Steven


From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> on behalf of Chips <sakr4360@...>
Sent: Sunday, January 12, 2020 9:21:36 AM
To: SouthBendLathe@groups.io <SouthBendLathe@groups.io>
Subject: Re: [SouthBendLathe] stuck chuck
 
Newb here, first post.
Mine was stuck when I got it due to sitting for 20+ years and yes I broke a tooth on the back gear.
Make one of these from 1/4 thick plate then put it on the bull gear opposite side of the little push pin that engages the pulley. Then you can crank on the chuck.
You can thank me later.


Re: stuck chuck

Chips
 

Newb here, first post.
Mine was stuck when I got it due to sitting for 20+ years and yes I broke a tooth on the back gear.
Make one of these from 1/4 thick plate then put it on the bull gear opposite side of the little push pin that engages the pulley. Then you can crank on the chuck.
You can thank me later.


Re: stuck chuck

Rick Watson
 

If you click on “View/Reply Online” in this mail, login to the web page, then click “PHOTOS” on the web page, then “Emailed Photos”, you’ll see the photos, at least I do.

 

https://groups.io/g/SouthBendLathe/album?id=0

 

https://groups.io/g/SouthBendLathe/photo/0/0?p=Created,,,20,2,0,0

 

 


Re: stuck chuck

Jon Holmes <j_sholmes@...>
 

The cause of most broken back gears too!

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