Date   

Re: wanted: threading dial for SBL 9

roefa.excite
 

Ditto !
Thanks, Jim... thanks, Ed.
Roger Memphis
 

-----Original Message-----
From: "Ed S" [eschwerkolt@...]
Date: 04/09/2014 01:52 AM
To: SOUTHBENDLATHE@...
Subject: Re: [SOUTHBENDLATHE] wanted: threading dial for SBL 9

 

Jim B

I have copied and pasted the original and this corection in word.

I cannot tell which sentences to keep and which to delete. It would
be better if you corrected the original and re-posted.

Ed S

At 11:54 PM 4/8/2014, you wrote:
>SLIGHT ERROR.
>Back the tool towards the tailstock. Go at least one turn of the
>lead screw closer to the tailstock past the work.
>With the lathe in backgear and on the lowest speed and with the feed
>set to feed toward the headstock turn the motor on FORWARD. Move the
>compound 0.005 clockwise. Move the cross feed one full turn CLOCKWISE to zero.
>Jim B
 

 


Re: OT: Anyone going to Cabin Fever this weekend

Mark R. Jonkman
 

I’m leaving here around 1pm on Friday, expect I’ll get there early evening on Friday (it says 4hrs, 10min.. but I’m skirting edge of DC, so who knows). We need to get back for daughter’s birthday so I’ll be leaving around 4pm on Saturday (she’s letting mom and dad be away on her actual birthday (Sat) so I have to get back that evening. It was either that or wait until Cabin Fever wasn’t on her birthday weekend L

 

It would be definitely great to meet up with ya!

 

Sincerely
Mark R. Jonkman

 

From: SOUTHBENDLATHE@... [mailto:SOUTHBENDLATHE@...] On Behalf Of Mark Hofer
Sent: Wednesday, April 09, 2014 11:55 AM
To: SOUTHBENDLATHE@...
Subject: Re: [SOUTHBENDLATHE] OT: Anyone going to Cabin Fever this weekend

 

 

I will be going and currently plan to arrive sometime late Fri morning and leave sometime late Sun morning. Would be great to meet up!

M

 

 

On Apr 9, 2014, at 11:27 AM, Mark R. Jonkman <mark.jonkman@...> wrote:



 

Just curious if anyone is going to Cabin Fever this weekend in York, PA.

I plan to be there on Saturday for most of the day.

 

Sincerely
Mark R. Jonkman

 

http://bitsbytesandsawdust.blogspot.com

 

 

 


Re: OT: Anyone going to Cabin Fever this weekend

Mark Hofer
 

I will be going and currently plan to arrive sometime late Fri morning and leave sometime late Sun morning. Would be great to meet up!
M


On Apr 9, 2014, at 11:27 AM, Mark R. Jonkman <mark.jonkman@...> wrote:


Just curious if anyone is going to Cabin Fever this weekend in York, PA.

I plan to be there on Saturday for most of the day.

 

Sincerely
Mark R. Jonkman

 

http://bitsbytesandsawdust.blogspot.com

 




OT: Anyone going to Cabin Fever this weekend

Mark R. Jonkman
 

Just curious if anyone is going to Cabin Fever this weekend in York, PA.

I plan to be there on Saturday for most of the day.

 

Sincerely
Mark R. Jonkman

 

http://bitsbytesandsawdust.blogspot.com

 


FW: wanted: threading dial for SBL 9

Jim B. <btdtrf@...>
 

>Jim B

>I have copied and pasted the original and this correction in word.

>I cannot tell which sentences to keep and which to delete. It would
>be better if you corrected the original and re-posted.

>Ed S

Corrections are inserted in blow and indented below.

Jim B.


 

First cut a relief at the end of the threads. As a beginner make it a bit wider 0.093 or 0.125". Also put a 60 degree bevel on the far (headstock) end of the relief. The relief depth is equal to the thread depth.

[>>>] I also put a 45 degree bevel, as deep as the threads on the front, tailstock side of the work piece.



There are several ways to zero the dials, this is mine.
Back the tool toward the tailstock.

Move the compound dial, set at 29.5 degrees CLOCKWISE to zero. Do one full turn to be sure all backlash is removed.

Back out the cross feed to clear the work. At least one full turn.

Move the tool toward the headstock, into the thread area. Slowly turn the cross feed CLOCKWISE until the tool just touches the work. Set the dial to zero.
Back the cross feed out 1 turn COUNTERCLOCKWISE. Move the saddle and check zero. Adjust as needed.

[>>>] Back the cross feed  out, COUNTERCLOCKWISE, ON TURN.


Back the tool towards the tailstock. Go at least one turn of the lead screw closer to the tailstock past the work.
With the lathe in backgear and on the lowest speed and with the feed set to feed toward the headstock turn the motor on FORWARD. Move the compound 0.005 clockwise.

[>>>] Move the cross slide in, clockwise, one turn to zero.

Engage the half nuts. DO NOT DISENGAGE THEM AGAIN UNTIL THE THREAD IS FINISHED.

[>>>] if you want to set a way mounted DI at this point it will help you learn.


As the tool enters the relief, turn the motor off. In back gear it will stop in 1/2 turn or less.
Back the cross feed dual out 1 full turn, COUNTERCLOCKWISE, to zero.
Reverse the lathe motor and move the tool at least one full turn of the leadscrew past the work toward the tailstock.
Stop the motor.
Use a 6" scale to check if you set the thread pitch correctly.

[>>>] The back of a fish tail has some thread pitches for checking also.


Dial the cross feed in CLOCKWISE to zero. Dial in another 0.005" on the compound.
Turn on the motor forward. Stop the motor as the tool enters the relief.
Back the cross feed out one turn.
Reverse the motor and run the tool/saddle one full turn of the lead screw past the end of the work.
Stop the motor
Turn cross feed in to zero CLOCKWISE.
Do not move the compound. Start the motor forward. Stop the motor as the tool enters the relief.
This was a free or spring pass. Every third pass should be a free pass.
Back the cross feed out one full turn.
Run the carriage one full turn of the lead screw past the work.

When the depth of cut on the compound is 0.020" I reduce feed steps to 0.0025".
When it gets to 0.040 to 0.050 or I am getting close to target depth I reduce feed on the compound to 0.001".
My last 0.001" feed is taken on the CROSS feed.

Jim B

Sent from my RAZR.


Re: Thread dial gear

sblatheman
 

I would be interested in your thread dial that is missing the gear, if you want to sell it.

Ted

On Apr 7, 2014, at 9:39 PM, <dgrennan74@...> wrote:

 

Can anyone tell me where I can get or have made Thread Dial Gear for a single tumbler 1947 Heavy  Ten


Re: wanted: threading dial for SBL 9

Flash Gordon
 

Jim B

I have copied and pasted the original and this corection in word.

I cannot tell which sentences to keep and which to delete. It would be better if you corrected the original and re-posted.

Ed S

At 11:54 PM 4/8/2014, you wrote:
SLIGHT ERROR.
Back the tool towards the tailstock. Go at least one turn of the lead screw closer to the tailstock past the work.
With the lathe in backgear and on the lowest speed and with the feed set to feed toward the headstock turn the motor on FORWARD. Move the compound 0.005 clockwise. Move the cross feed one full turn CLOCKWISE to zero.
Jim B


Re: What size quick change tool holder on a Heavy Ten?

Rick Rick
 

Well some one has to be different.

I use the BXA

Tried a AXA and I was so used to the B series I went back.

Go figure.

 

Rick


Re: What size quick change tool holder on a Heavy Ten?

Flash Gordon
 

Mark,

thanks for asking... i will need an AXA also.

Ed S

At 12:14 AM 4/9/2014, you wrote:


Thanks for the input. So far it seems that the trend is about 5 to 1 for the AXA over the BXA (big surprise to me). I'm glad I didn't size the whole batch to BXA before I talked to you guys. Looks like I'll have to re-think that strategy and fire up the Bridgeport again.

Thanks guys!
Mick


Re: What size quick change tool holder on a Heavy Ten?

bluechipmachineshop
 

Thanks for the input. So far it seems that the trend is about 5 to 1 for the AXA over the BXA (big surprise to me). I'm glad I didn't size the whole batch to BXA before I talked to you guys. Looks like I'll have to re-think that strategy and fire up the Bridgeport again.

Thanks guys!
Mick


Re: wanted: threading dial for SBL 9

Jim B. <btdtrf@...>
 

SLIGHT ERROR.
Back the tool towards the tailstock. Go at least one turn of the lead screw closer to the tailstock past the work.
With the lathe in backgear and on the lowest speed and with the feed set to feed toward the headstock turn the motor on FORWARD. Move the compound 0.005 clockwise. Move the cross feed one full turn CLOCKWISE to zero.
Jim B

Sent from my RAZR.


Re: wanted: threading dial for SBL 9

Jim B. <btdtrf@...>
 

First cut a relief at the end of the threads. As a beginner make it a bit wider 0.093 or 0.125". Also put a 60 degree bevel on the far (headstock) end of the relief. The relief depth is equal to the thread depth.

There are several ways to zero the dials, this is mine.
Back the tool toward the tailstock.

Move the compound dial, set at 29.5 degrees CLOCKWISE to zero. Do one full turn to be sure all backlash is removed.

Back out the cross feed to clear the work. At least one folk turn.

Move the tool toward the headstock, into the thread area. Slowly turn the cross feed CLOCKWISE until the tool just touches the work. Set the dial to zero.
Back the cross feed out 1 turn COUNTERCLOCKWISE. Move the saddle and check zero. Adjust as needed.

Back the tool towards the tailstock. Go at least one turn of the lead screw closer to the tailstock past the work.
With the lathe in backgear and on the lowest speed and with the feed set to feed toward the headstock turn the motor on FORWARD. Move the compound 0.005 clockwise. Engage the half nuts. DO NOT DISENGAGE THEM AGAIN UNTIL THE THREAD IS FINISHED.
As the tool enters the relief turn the motor off. In back gear it will stop in 1/2 turn or less.
Back the cross feed dual out 1 full turn, COUNTERCLOCKWISE, to zero.
Reverse the lathe motor and move the tool at least one full turn of the leadscrew past the work toward the tailstock.
Stop the motor.
Use a 6" scale to check if you set the thread pitch correctly.
Dial the cross feed in CLOCKWISE to zero. Dial in another 0.005" on the compound.
Turn on the motor forward. Stop the motor as the tool enters the relief.
Back the cross feed out one turn.
Reverse the motor and run the tool/saddle one full turn of the lead screw past the end of the work.
Stop the motor
Turn cross feed in to zero CLOCKWISE.
Do not move the compound. Start the motor forward. Stop the motor as the tool enters the relief.
This was a free or spring pass. Every third pass should be a free pass.
Back the cross feed out one full turn.
Run the carriage one full turn of the lead screw past the work.

When the depth of cut on the compound is 0.020" I reduce feed steps to 0.0025".
When it gets to 0.040 to 0.050 or I am getting close to target depth I reduce feed on the compound to 0.001".
My last 0.001" feed is taken on the CROSS feed.

Jim B

Sent from my RAZR.


Re: wanted: threading dial for SBL 9

Lance Eggleston <lance.eggleston@...>
 

OK smart guys,
reverse the motor,  reverse the lead screw
or stand back to the lathe?

In any case I have to wait for the machine to stop.
If motor, then reverse the switch;
 if lead screw then get the wrench, loosen the bolt, 
finagle the lever, tighten the bolt, replace the wrench.

Do this 9 bazillion times to get DOC.

Hmmm,
anybody have a thread dial for a 9a?

lance
++++

On Apr 8, 2014, at 8:37 PM, Steve Wells wrote:



Jim,
zero out, reverse and zero in, compound in, foward...repeat :)


Re: What size quick change tool holder on a Heavy Ten?

Steve Wells
 


I use AXA Mike, and will take one.
 
Steve Wells
 

----- Original Message -----
Sent: Tuesday, April 08, 2014 9:24 PM
Subject: [SOUTHBENDLATHE] What size quick change tool holder on a Heavy Ten?

 

Need some help here....... I was running off a batch of T slot nuts and stud sets for ten inch lathes tonight, and thought before I committed the whole batch for BXA size tool holders, I might check with you guys that have Heavy tens. Conventional wisdom (or what passes for it in my shop) tells me that you should run a BXA (or 200) size tool post on a ten inch lathe. The main difference in the T nut is the size of the stud in order to have a tight lock-up on the tool holder. My question is: Before I thread this batch for the larger (BXA) stud, are there operators out there using an AXA (100 size) tool holder on a ten inch lathe, or would I be wasting time and materials fitting some of them for the smaller studs? I've got a batch waiting on an answer before it goes in the phosphate tank.

Mick Finch
bluechipmachineshop.com  


Re: wanted: threading dial for SBL 9

Steve Wells
 

Yes you can use the stop to zero out too, I dont plunge cut with the cross feed, I cut threads with the compound
most of the time. it's called zero to zero by some. easy to hit the thread depth them check with pee-dee's.
The cross slide is used to mark the total depth of cut then zeroed. the compound is zeroed then backed off to start the
cut, when you reach the original zero on the compound the thread is done. The cross slide zeros out to return, zeros in to start.
Easy to hit your numbers and the feed angle is good for small lathes, chips come out nice with the side cut, other reasons too.
 
Steve
 

----- Original Message -----
From: Ed S
Sent: Tuesday, April 08, 2014 9:11 PM
Subject: Re: [SOUTHBENDLATHE] wanted: threading dial for SBL 9

 

Actually SB had a stop you placed on the cross feed, operator side. When you got  to the end of a thread cut, you backed out to the stop. reversed the lathe to the beginning and you know where you were to begin over again.

Ed S



 At 08:37 PM 4/8/2014, you wrote:



Jim,
zero out, reverse and zero in, compound in, foward...repeat :)
----- Original Message -----
From: Jim B.
To: SOUTHBENDLATHE@...
Sent: Tuesday, April 08, 2014 8:12 PM
Subject: Re: [SOUTHBENDLATHE] wanted: threading dial for SBL 9



You don't really need a thread dial to thread. Its a convenience but not a necessity.
You just never disengage the half nuts.
Some think, for a short length of thread, its actually quicker.
Jim B


Re: What size quick change tool holder on a Heavy Ten?

sblatheman
 

The BXA works on the 10L (I use one on mine), but the adjustment is all the way down on most tools. The AXA would be the better choice.(I also have the BXA on my 13",that's why I have one on my 10L)

Ted

On Apr 8, 2014, at 9:24 PM, <bluechipmachineshop@...> wrote:

 

Need some help here....... I was running off a batch of T slot nuts and stud sets for ten inch lathes tonight, and thought before I committed the whole batch for BXA size tool holders, I might check with you guys that have Heavy tens. Conventional wisdom (or what passes for it in my shop) tells me that you should run a BXA (or 200) size tool post on a ten inch lathe. The main difference in the T nut is the size of the stud in order to have a tight lock-up on the tool holder. My question is: Before I thread this batch for the larger (BXA) stud, are there operators out there using an AXA (100 size) tool holder on a ten inch lathe, or would I be wasting time and materials fitting some of them for the smaller studs? I've got a batch waiting on an answer before it goes in the phosphate tank.

Mick Finch
bluechipmachineshop.com  


Re: What size quick change tool holder on a Heavy Ten?

Jim B. <btdtrf@...>
 

The down side of the AXA is the normal slot in the tool holder. It limits the size of indexable inserts. A loris does make some holders with 5/8 slots but they are expensive.
I have modified a few AXA holders to take 5/8 tools.
Jim B

Sent from my RAZR.


Re: What size quick change tool holder on a Heavy Ten?

John Fischer
 

2 10Ls here and both have Aloris AXAs.  Not sure how much larger a BXA is, but I think it might actually be a little big – never tried one.

 

Regards

John

 

From: SOUTHBENDLATHE@... [mailto:SOUTHBENDLATHE@...] On Behalf Of bluechipmachineshop@...
Sent: Tuesday, April 08, 2014 9:25 PM
To: SOUTHBENDLATHE@...
Subject: [SOUTHBENDLATHE] What size quick change tool holder on a Heavy Ten?

 

 

Need some help here....... I was running off a batch of T slot nuts and stud sets for ten inch lathes tonight, and thought before I committed the whole batch for BXA size tool holders, I might check with you guys that have Heavy tens. Conventional wisdom (or what passes for it in my shop) tells me that you should run a BXA (or 200) size tool post on a ten inch lathe. The main difference in the T nut is the size of the stud in order to have a tight lock-up on the tool holder. My question is: Before I thread this batch for the larger (BXA) stud, are there operators out there using an AXA (100 size) tool holder on a ten inch lathe, or would I be wasting time and materials fitting some of them for the smaller studs? I've got a batch waiting on an answer before it goes in the phosphate tank.

Mick Finch
bluechipmachineshop.com  


Re: What size quick change tool holder on a Heavy Ten?

Davis Johnson
 

I'm no expert, but my gut feeling is that the height of the center line above the top of the compound, rather than the swing of the lathe, sugests the size of the QCTP.

The height of the center line above the top of the compound is the nominally the same for a 9A and a 10L.

I have a BXA-size phase-II tool holder and find it workable but awkwardly large on the 9A and 10L. It just takes up a lot of room - especially when working on small parts.

When I can get organized enough to have all the parts in one box I'll probably try to trade it or sell it and get an AXA size tool post.

On 4/8/2014 9:30 PM, Mark R. Jonkman wrote:
 

AXA seemed to be more common for 10” when I was doing my research – so I went with AXA and it seems to be the right size for me on a 10L.

 

mark

 

From: SOUTHBENDLATHE@... [mailto:SOUTHBENDLATHE@...] On Behalf Of bluechipmachineshop@...
Sent: Tuesday, April 08, 2014 9:25 PM
To: SOUTHBENDLATHE@...
Subject: [SOUTHBENDLATHE] What size quick change tool holder on a Heavy Ten?

 

 

Need some help here....... I was running off a batch of T slot nuts and stud sets for ten inch lathes tonight, and thought before I committed the whole batch for BXA size tool holders, I might check with you guys that have Heavy tens. Conventional wisdom (or what passes for it in my shop) tells me that you should run a BXA (or 200) size tool post on a ten inch lathe. The main difference in the T nut is the size of the stud in order to have a tight lock-up on the tool holder. My question is: Before I thread this batch for the larger (BXA) stud, are there operators out there using an AXA (100 size) tool holder on a ten inch lathe, or would I be wasting time and materials fitting some of them for the smaller studs? I've got a batch waiting on an answer before it goes in the phosphate tank.

Mick Finch
bluechipmachineshop.com  



Re: What size quick change tool holder on a Heavy Ten?

Jim B. <btdtrf@...>
 

I believe its a bit large. I use an AXA on my 10L and have been for 7 years now.
Jim B

Sent from my RAZR.

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