Date   
Re: Dial Indicator Holder for 9/10k Lathe

ww_big_al
 

I’m interested in the bed mounted unit in other may want the the QCTP one

Al Knack

On Sep 24, 2019, at 9:46 AM, Jim_B <jim@...> wrote:

The bed mounted one or the QCTP mounted one (or both)?

-8
Jim B,

On Sep 24, 2019, at 6:48 AM, ww_big_al <arknack@...> wrote:

Jim-B
I looked though the files but didn't find your write up on the dial indicator holder you designed. Could you please post/load it up on this site. That is moving up on my to do list.

--
Jim B

Re: Dial Indicator Holder for 9/10k Lathe

Jim_B
 





Drawings and pictures of the 9” and 10” holders. 
Sent from my MacBook

Jim B.




On Sep 24, 2019, at 6:48 AM, ww_big_al <arknack@...> wrote:

Jim-B
I looked though the files but didn't find your write up on the dial indicator holder you designed. Could you please post/load it up on this site. That is moving up on my to do list.


--
Jim B

Re: Dial Indicator Holder for 9/10k Lathe

Jim_B
 

The bed mounted one or the QCTP mounted one (or both)?

-8
Jim B,

On Sep 24, 2019, at 6:48 AM, ww_big_al <arknack@...> wrote:

Jim-B
I looked though the files but didn't find your write up on the dial indicator holder you designed. Could you please post/load it up on this site. That is moving up on my to do list.

--
Jim B

Re: Dial Indicator Holder for 9/10k Lathe

ww_big_al
 

Thanks. Another good idea. The unit Jim drew up was to clamp on the bed for the carriage movement. Now I have another project on my “to do” list.

Al

 

From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of Dave Eggebraaten (AF5IA)
Sent: Tuesday, September 24, 2019 7:56 AM
To: SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] Dial Indicator Holder for 9/10k Lathe

 

I don't think you were asking about my design, but...

I will include some pictures of mine.   This is a SB 14 1/2 lathe.

 

On 9/24/2019 5:48 AM, ww_big_al wrote:

Jim-B
I looked though the files but didn't find your write up on the dial indicator holder you designed. Could you please post/load it up on this site. That is moving up on my to do list.

Re: Dial Indicator Holder for 9/10k Lathe

Dave Eggebraaten (AF5IA)
 

I don't think you were asking about my design, but...

I will include some pictures of mine.   This is a SB 14 1/2 lathe.


On 9/24/2019 5:48 AM, ww_big_al wrote:
Jim-B
I looked though the files but didn't find your write up on the dial indicator holder you designed. Could you please post/load it up on this site. That is moving up on my to do list.

Dial Indicator Holder for 9/10k Lathe

ww_big_al
 

Jim-B
I looked though the files but didn't find your write up on the dial indicator holder you designed. Could you please post/load it up on this site. That is moving up on my to do list.

Re: Reverse operation with 10k screw spindle

John Dammeyer
 

As we discovered when I developed my Electronic Lead Screw, the load on the spindle motor when threading is minimal, which is why we can get away with one pulse per revolution.  Especially an AC line coupled motor or a 3 phase one with a VFD.  The spindle just doesn't change speed while threading so the threads are surprisingly accurate.

 

Threading in reverse will not likely create enough torque to unwind the chuck.  Certainly wouldn't on my 10L.  Once the chuck is tight it takes a bit of effort to break it lose.  Only a hard braking from high speed to stopped might result in the chuck mass overcoming the torque against the screw register.

 

John

 

 

From: SouthBendLathe@groups.io [mailto:SouthBendLathe@groups.io] On Behalf Of dfuller440@...
Sent: September-23-19 10:09 AM
To: SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] Reverse operation with 10k screw spindle

 

On Mon, Sep 23, 2019 at 10:03 AM, John Dammeyer wrote:

why does one need to run the spindle in reverse at all?

I want to cut some threads with the tool upside down with the machine in reverse.  I want to cut the threads right up to a register with no "gutter" available.
Dan

Re: Reverse operation with 10k screw spindle

Daniel Fuller
 

On Mon, Sep 23, 2019 at 10:03 AM, John Dammeyer wrote:
why does one need to run the spindle in reverse at all?
I want to cut some threads with the tool upside down with the machine in reverse.  I want to cut the threads right up to a register with no "gutter" available.
Dan

Re: Reverse operation with 10k screw spindle

John Dammeyer
 

Since I have a Heavy 10L with taper attachment apparently the need to mount a parting tool upside down behind the lathe with the spindle turning in reverse isn't required.  Although I must say, parting off is still a bit scary.

 

But other than that, why does one need to run the spindle in reverse at all?

 

John

 

 

From: SouthBendLathe@groups.io [mailto:SouthBendLathe@groups.io] On Behalf Of Jim_B
Sent: September-23-19 9:40 AM
To: SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] Reverse operation with 10k screw spindle

 

If your work is less than 1/2” in diameter use a 3C collet, or 5/8" with a 6K collet. 

I have also seen small chucks mounted to a collet or Morse taper. 

 

I used to have a couple. 

 

Sent from my MacBook

Jim B.

 

 

 



On Sep 23, 2019, at 12:32 PM, m. allan noah <kitno455@...> wrote:

 

I run threaded chucks in reverse quite often. Never had one come off.
But, I do avoid interrupted cuts.

allan

On Mon, Sep 23, 2019 at 12:25 PM <dfuller440@...> wrote:


Hi,
Got a question about my 10k SB lathe with the 1-1/2" x 8 spindle.
Is there any way to -safely- run the lathe in reverse with the chuck to do a specific cutting operation?
On my old Jet 9x20, the chuck had a safety screw to keep the chuck from flying off in reverse.  I don't think that my 10k lends itself to a safety screw without messing up the register.
Any suggestions or do I need to forget about reverse operation?  (BTW, motor will reverse.)
Dan




--
"well, I stand up next to a mountain- and I chop it down with the edge
of my hand"


 


--
Jim B

Re: Reverse operation with 10k screw spindle

Jim_B
 

If your work is less than 1/2” in diameter use a 3C collet, or 5/8" with a 6K collet. 
I have also seen small chucks mounted to a collet or Morse taper. 

I used to have a couple. 

Sent from my MacBook
Jim B.




On Sep 23, 2019, at 12:32 PM, m. allan noah <kitno455@...> wrote:

I run threaded chucks in reverse quite often. Never had one come off.
But, I do avoid interrupted cuts.

allan

On Mon, Sep 23, 2019 at 12:25 PM <dfuller440@...> wrote:

Hi,
Got a question about my 10k SB lathe with the 1-1/2" x 8 spindle.
Is there any way to -safely- run the lathe in reverse with the chuck to do a specific cutting operation?
On my old Jet 9x20, the chuck had a safety screw to keep the chuck from flying off in reverse.  I don't think that my 10k lends itself to a safety screw without messing up the register.
Any suggestions or do I need to forget about reverse operation?  (BTW, motor will reverse.)
Dan




--
"well, I stand up next to a mountain- and I chop it down with the edge
of my hand"





--
Jim B

Re: Reverse operation with 10k screw spindle

m. allan noah
 

I run threaded chucks in reverse quite often. Never had one come off.
But, I do avoid interrupted cuts.

allan

On Mon, Sep 23, 2019 at 12:25 PM <dfuller440@...> wrote:

Hi,
Got a question about my 10k SB lathe with the 1-1/2" x 8 spindle.
Is there any way to -safely- run the lathe in reverse with the chuck to do a specific cutting operation?
On my old Jet 9x20, the chuck had a safety screw to keep the chuck from flying off in reverse. I don't think that my 10k lends itself to a safety screw without messing up the register.
Any suggestions or do I need to forget about reverse operation? (BTW, motor will reverse.)
Dan
--
"well, I stand up next to a mountain- and I chop it down with the edge
of my hand"

Reverse operation with 10k screw spindle

Daniel Fuller
 

Hi,
Got a question about my 10k SB lathe with the 1-1/2" x 8 spindle.
Is there any way to -safely- run the lathe in reverse with the chuck to do a specific cutting operation?
On my old Jet 9x20, the chuck had a safety screw to keep the chuck from flying off in reverse.  I don't think that my 10k lends itself to a safety screw without messing up the register.
Any suggestions or do I need to forget about reverse operation?  (BTW, motor will reverse.)
Dan

Re: FS: South Bend 14 1/2" x 6' Lathe (NE Ohio)

Dave Eggebraaten (AF5IA)
 

I have a 14 1/2" that replaced a 9".  I have been very impressed with the capabilities of the 14.  It is a very good choice for the hobbyist.  I so some work(play) on older vehicles.  Just recently rebuilt and changed the length of a drive shaft,  and also turned brake drums.  The extra swing is great. 


On 9/17/2019 8:19 PM, Jeremy Summers wrote:
I haven't been active on this list but have been lurking for several years now.  I am selling my South Bend 14 1/2" lathe with 6' bed.  I bought this lathe several years ago but just haven't had time to invest into it like I would have liked and it is taking up a lot of room in my shop so it has to go.  When I purchased it, the previous owner had cleaned it up and repainted it and had the motor rewound.  It was running and I was able to turn a few parts with it in his shop. 

It is currently not hooked up in my shop as one of the first things I wanted to do is replace the old frayed cloth wiring with more modern wire.  I also replaced the switch with a cheap knockoff drum switch, which promptly had the handle knocked off.  I still have the original drum switch which could easily be reinstalled and I should probably just go ahead and do that..  It probably needs a new belt as the last time I did run it, the belt was slipping pretty good.  

The cross feed screw has a little play in it which i think is a pretty common issue with this machines.

I also have a 3 and 4 jaw chuck, center rest, lathe dogs, faceplate and other assorted tooling to go with it.

Ask any questions and I'll do my best to answer but I am not really an expert on these machines and their use.  I can take more pictures if there is something specific you want to see up close.  I have a copy of the original card that I purchased through Grizzly with some other history on this lathe.

The lathe is located in northeast Ohio and I do have the ability to load it onto a trailer.

I am open to offers on this.














Re: New member here from down under

dave
 

Hi Philip. Thanks very much i will contact them and see what i can buy.
Cheers Dave




On Wed, Sep 18, 2019 at 11:40 PM +1000, "Phillip Rankin" <phillip.rankin1964@...> wrote:

https://australianmetalworkinghobbyist.com/store/index.php?route=information/information&information_id=13 would be a good web sight to bookmark. If you can find what you need from AMW it would save you the expense of international shipping. Keep in mind that many parts for the British made Boxford lathe models A, B, C, AUD, BUD, and CUD. Will also work on your Sheraton 9". Other than that eBay and this group are probably your best sources for parts. Scrolling through the thread I see someone has posted a couple of eBay sources for the cross slide screw and nut. I can vouch for these eBay venders. I have purchased parts from both of them. 

Re: New member here from down under

Phillip Rankin
 

https://australianmetalworkinghobbyist.com/store/index.php?route=information/information&information_id=13 would be a good web sight to bookmark. If you can find what you need from AMW it would save you the expense of international shipping. Keep in mind that many parts for the British made Boxford lathe models A, B, C, AUD, BUD, and CUD. Will also work on your Sheraton 9". Other than that eBay and this group are probably your best sources for parts. Scrolling through the thread I see someone has posted a couple of eBay sources for the cross slide screw and nut. I can vouch for these eBay venders. I have purchased parts from both of them. 

Re: New member here from down under

dave
 

Thanks for the advice Ill check that out

 

Kind regards

Dave Farrell

 

From: SouthBendLathe@groups.io [mailto:SouthBendLathe@groups.io] On Behalf Of glenn brooks
Sent: Wednesday, September 18, 2019 2:48 AM
To: SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] New member here from down under

 

My experience is, generally speaking, if the nut is worn, the lead screw it mates with is also worn some  amount also,  So with a lot of wear, one commonly would want to replace both.

 

On your compound screw, the key test for replacement is: does the tooling produce inconsistent tolerance when making repeated cuts? And does the tooling sometimes cut a tiny “spiral”groove in the finish, often at repeated intervals?  If so, these are signs the lead screw is worn and needs to be replaced, along with the nut. When this occurs, the threads on the lead screw can’t hold the tool post at a consistent DOC, so the tooling wobbles around a bit as you proceed with the cut - causing inconsistent DOC and poor finish.

 

(The lead screw often wears more in one location along its length, usually the middle, than the ends. Sometimes you can visually look at the middle and compare thread thickness with the extreme outer end.)

 

Anyway, 

 

 

here in the US that made up a new leads row and nut for my SB Fourteen.  Solved all of my problems with finish and inconsistent DOC.

 

You might be able to have him make it up and mail to you. Or find a machine shop locally that can do it.

 

Regards,

Glenn Brooks

 

 


On Sep 17, 2019, at 5:58 AM, ww_big_al <arknack@...> wrote:

I don’t believe Loctite would work. Loctite is a anaerobic liquid which mean it is the lack of oxygen that cures it. Also it isn’t designed to build up any thickness. I have read where some have used Turcite type material with good success.

 

From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of Rick Kruger
Sent: Tuesday, September 17, 2019 1:02 AM
To: SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] New member here from down under

 

Can you slice the nut part way through and drill/tap a hole to "clamp" the nut tighter?  I believe some machines come with the nuts this way. 

Drill through with the tap drill size and then just one side with the clearance drill size.  Not sure how much clearance room there is around the nut for a screw head, but a FHCS could work. 

Rick

On 9/16/2019 5:29 PM, dave via Groups.Io wrote:


Hello.  I've recently joined the group and live in Sydney Australia. 

Has anyone ever tried loctite form a thread product to help backlash?  My compound slide nut is fairly worn and i want to try loctite form a thread to build it up.  I know ours not the right thing to do but it is rarely used on my lathe. The tech specs give it a good shear strength but not sure about it's use.  Failing that does anyone have a CR nut for sale?  Its 3/8" - 10 pitch. 

Thanks

 Dave 

 

Re: New member here from down under

dave
 

Yes that is also correct. I have backlash In the nut plus in the dial to bush gap

 

Kind regards

Dave Farrell

 

From: SouthBendLathe@groups.io [mailto:SouthBendLathe@groups.io] On Behalf Of m. allan noah
Sent: Wednesday, September 18, 2019 4:30 AM
To: SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] New member here from down under

 

My experience has been that consistent backlash across the travel of the screw is actually wear between the handle or dial and the bushing in compound. Do you see a gap open up there when you reverse directions?

 

allan

 

On Tue, Sep 17, 2019 at 2:21 PM benjithestupiddog via Groups.Io <benjithestupiddog=yahoo.co.uk@groups.io> wrote:

Might be a stupid suggestion, but I just 3d printed a new one for my 9a, it's not perfect but better than the knackered old original.

If you find someone to someone to print it for you I can send you the file they would need.

Failing that you can have the one in the pic if you want to try it, it's probably only £4-5 to post it from the UK, its only a few grams.

I've had a lot more than a fivers worth of free advice from here, so it would be good karma as they say.



--

"well, I stand up next to a mountain- and I chop it down with the edge of my hand"

Re: New member here from down under

dave
 

Thank you for that

 

Kind regards

Dave Farrell

 

From: SouthBendLathe@groups.io [mailto:SouthBendLathe@groups.io] On Behalf Of comstock_friend
Sent: Wednesday, September 18, 2019 3:35 AM
To: SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] New member here from down under

 

[Edited Message Follows]

Big Al and others, this is what the OP asked about, not Loctite thread lockers but Loctite Form-A-Thread Stripped Repair Kit.


https://www.amazon.com/Loctite-442-28654-4-80ml-Thread-Stripped/dp/B000WSEUII

This fellow on ebay has the nuts:

https://www.ebay.com/sch/derewa2/m.html?

This guy has nuts, screws and nut/screw 'rebuild kits':

https://www.ebay.com/sch/largevise/m.html?

Both seem willing to ship international but that could get expensive.

John

FS: South Bend 14 1/2" x 6' Lathe (NE Ohio)

Jeremy Summers
 

I haven't been active on this list but have been lurking for several years now.  I am selling my South Bend 14 1/2" lathe with 6' bed.  I bought this lathe several years ago but just haven't had time to invest into it like I would have liked and it is taking up a lot of room in my shop so it has to go.  When I purchased it, the previous owner had cleaned it up and repainted it and had the motor rewound.  It was running and I was able to turn a few parts with it in his shop. 

It is currently not hooked up in my shop as one of the first things I wanted to do is replace the old frayed cloth wiring with more modern wire.  I also replaced the switch with a cheap knockoff drum switch, which promptly had the handle knocked off.  I still have the original drum switch which could easily be reinstalled and I should probably just go ahead and do that..  It probably needs a new belt as the last time I did run it, the belt was slipping pretty good.  

The cross feed screw has a little play in it which i think is a pretty common issue with this machines.

I also have a 3 and 4 jaw chuck, center rest, lathe dogs, faceplate and other assorted tooling to go with it.

Ask any questions and I'll do my best to answer but I am not really an expert on these machines and their use.  I can take more pictures if there is something specific you want to see up close.  I have a copy of the original card that I purchased through Grizzly with some other history on this lathe.

The lathe is located in northeast Ohio and I do have the ability to load it onto a trailer.

I am open to offers on this.














Re: New member here from down under

Guenther Paul
 

I had very bad luck with 3d printed machine parts, they did not hold up. I am not saying it cant be done. Get some one that knows his stuff. It must be a solid print ( no honey comb ) and the proper plastic must be used, or you waist your time and money

GP


On Tuesday, September 17, 2019, 02:30:26 PM EDT, m. allan noah <kitno455@...> wrote:


My experience has been that consistent backlash across the travel of the screw is actually wear between the handle or dial and the bushing in compound. Do you see a gap open up there when you reverse directions?

allan

On Tue, Sep 17, 2019 at 2:21 PM benjithestupiddog via Groups.Io <benjithestupiddog=yahoo.co.uk@groups.io> wrote:
Might be a stupid suggestion, but I just 3d printed a new one for my 9a, it's not perfect but better than the knackered old original.

If you find someone to someone to print it for you I can send you the file they would need.

Failing that you can have the one in the pic if you want to try it, it's probably only £4-5 to post it from the UK, its only a few grams.

I've had a lot more than a fivers worth of free advice from here, so it would be good karma as they say.



--
"well, I stand up next to a mountain- and I chop it down with the edge of my hand"