Date   
Re: Treadmill Motor Conversion [2 Attachments]

soupy1951ca
 

Do you remember the model number of your controller. Do they provide a wiring diagram or is it pretty self explanatory. Thanks for the info.
 
Mike from Canada​


On Sun, Jun 1, 2014 at 3:20 PM, Bruce misltoe2@... [SOUTHBENDLATHE] <SOUTHBENDLATHE@...> wrote:
 
[Attachment(s) from Bruce included below]

The last time I saw them, Minarik controls were under $90.00.
They work great. Mine has been running for about 5 years.
Same motor as yours. I put a small cooling fan in my control box
rather than a heat sink. Also ran # 12 wire from the control box
to the brushes.A double throw switch for forward and reverse.
A fan and a power switch.
 Also in pic my Hardinge bed turret I re machined to fit my SB
9" A.
Bruce


On 6/1/2014 10:29 AM, Curt Wuollet wideopen1@... [SOUTHBENDLATHE] wrote:
 

I bought my motor new from surplus center back when they were common and cheap for a wind generator project. Now you have to scrounge one because they sell on ebay for insane prices for used motors. The people selling them must hunt around here because I haven't seen a scroungeable treadmill.  The controller I found is a Minarik 301U which was too expensive too. To do this now would cost more than a VFD and 3 phase motor setup if you couldn't at least get the motor free. And a good controller is key. All the setups where people complain about lack of power use the treadmill controller sometimes modified. Apparently some work, but I think most are current limited for liability reasons. So you hear the motor is a piece of crap. They are what they are, but they do put out more than enough most shop tools.

Regards

cww

On 06/01/2014 08:00 AM, kaleb sells kalebasells@... [SOUTHBENDLATHE] wrote:
 

As far as brush issues go it all depends on the treadmill that is cannibalized. Some use brushed DC motors but many use brushless permanent magnet DC motors, which are wired more similar to a 3-phase AC motor. My wifes treadmill was this way, i know because i had to work on it so often, it had a 3.5hp 90 volt brushless DC motor.

Kaleb Sells
Oklahoma






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“People that know they are important think about others, people that think they are important, think about themselves.” – Hans F. Hansen

 

Learn from the mistakes of others, you might not live long enough to make them all yourself!!!

Star Knob Screw

John Gallo
 

My 9A is also missing the screw that goes through the front of the star knob. I know that it is a left hand thread and was wondering if any one knows where to find one. Thanks, John.


Re: Brazed half nuts?

jim and rose
 

not the only way, see how I do it ,its in the group pics on yahoo
 
 
 
 
 

Sent: Sunday, June 01, 2014 1:52 PM
Subject: RE: [SOUTHBENDLATHE] Brazed half nuts?
 
 

It’s a standard practice for REPAIRING worn halfnuts.

The only way you can do this is to repair BOTH sides since the threads must match and you need to align them on a screw or slot them after brazing.

Yes standard NPT plug.

Jim B.


From: SOUTHBENDLATHE@... [mailto:SOUTHBENDLATHE@...]
Sent: Sunday, June 01, 2014 4:40 PM
To: SOUTHBENDLATHE@...
Subject: [SOUTHBENDLATHE] Brazed half nuts?

 

I just took apart the apron on my 1939 9A. The half nuts are separate from the levers and were brazed on. Was this the procedure for an early 9A? I find it hard to believe that they both were repaired. Also, the drain plug was missing and I was wondering if this was a standard NPT plug that I could find in a hardware store. Thanks in advance, John.

Re: 6K Collet Set

Curt Wuollet <wideopen1@...>
 

I'd like to. I have the opposite situation. I've got all the in between sizes but not the common ones.
But my toy budget is pretty limited till the heat blows over. I bought a smoker last week.

Regards

cww

On 06/01/2014 09:23 PM, kovacjason@... [SOUTHBENDLATHE] wrote:
 

Anyone looking for a set of RSB 6K collets?  Have a 9 collets in pretty new condition. Came with my 9" I assume when I had it.  Gone for a Heavy 10 with 5C

 

1/16 1/8 1/4 3/16 5/16 3/8 7/16 9/16 5/8

 

Make offer

 

 

Jay Kovac

 


Re: 6K Collet Set

Gregg Eshelman
 

On 6/1/2014 8:23 PM, kovacjason@... [SOUTHBENDLATHE] wrote:


Anyone looking for a set of RSB 6K collets? Have a 9 collets in pretty
new condition. Came with my 9" I assume when I had it. Gone for a Heavy
10 with 5C

1/16 1/8 1/4 3/16 5/16 3/8 7/16 9/16 5/8

Make offer
Nope, but I am looking for some common sizes of 4C collets for the vertical head on my Hardinge UM horizontal mill, and a 7/8" or 1" diameter milling arbor with drive collar.


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Re: Treadmill Motor Conversion

Curt Wuollet <wideopen1@...>
 

I've got a design I did years ago for spinning car alternators for testing. But today, I can't build it for what they are selling their hardware for. If I used the little Craftsman more often I'd be looking. Variable speed is a nice feature in a lathe.  I even had the treadmill motor running my milldrill briefly, but the controller didn't quite have the juice to get that started with the belt setup I had. The motor was willing but the 10A fuse would blow before the starting current went away.

Regards

cww

On 06/01/2014 08:27 PM, Gregg Eshelman g_alan_e@... [SOUTHBENDLATHE] wrote:
 

On 6/1/2014 8:29 AM, Curt Wuollet wideopen1@... [SOUTHBENDLATHE]
wrote:
>
> All the setups where people complain about lack of
> power use the treadmill controller sometimes modified. Apparently some
> work, but I think most are current limited for liability reasons. So you
> hear the motor is a piece of crap. They are what they are, but they do
> put out more than enough most shop tools.

The PWM controllers for the newer Chinese DC mills and lathes will work
with or can be modified to work with common DC treadmill motors.

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Re: 9 Junior compound rest needed

Jim B. <btdtrf@...>
 

Dates from October 1924
Jim B

Sent from my RAZR.

6K Collet Set

jason kovac
 

Anyone looking for a set of RSB 6K collets?  Have a 9 collets in pretty new condition. Came with my 9" I assume when I had it.  Gone for a Heavy 10 with 5C

 

1/16 1/8 1/4 3/16 5/16 3/8 7/16 9/16 5/8

 

Make offer

 

 

Jay Kovac

 

Re: New Member

Gregg Eshelman
 

On 6/1/2014 6:26 PM, autocar1980@... [SOUTHBENDLATHE] wrote:


I'm in upstate New York , but I sometimes travel to Washington.
Yesterday an old South Bend 9 Junior jumped in the car with us on the
way home. It needs a compound rest, do you have a spare ?
Nope, no spare for that part. Did your wife tell you not to pick up hitchhiking machinery?


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Re: New Member

Curt Wuollet <wideopen1@...>
 

Hi Bill, We've all been there..


Regards

cww

On 06/01/2014 08:07 AM, autocar1980@... [SOUTHBENDLATHE] wrote:
 


HI, My name is Bill and I'm a lathe hoarder. I find an unwanted lathe I must bring it home with me.


Re: 9 Junior compound rest needed

Matt Williams
 

It was a great find. The catalog number is 61 Y and the serial number is 30421.

Re: Treadmill Motor Conversion

Gregg Eshelman
 

On 6/1/2014 8:29 AM, Curt Wuollet wideopen1@... [SOUTHBENDLATHE] wrote:

All the setups where people complain about lack of
power use the treadmill controller sometimes modified. Apparently some
work, but I think most are current limited for liability reasons. So you
hear the motor is a piece of crap. They are what they are, but they do
put out more than enough most shop tools.
The PWM controllers for the newer Chinese DC mills and lathes will work with or can be modified to work with common DC treadmill motors.

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Re: 9 Junior compound rest needed

Jim B. <btdtrf@...>
 

You have an interesting lathe. The 9" junior, catalog #22, as a base model was a change gear lathe. However there was a QCGB available as an accessory.

There are a lot of wide bed owners in the group so hang in there.
Jim B

Sent from my RAZR.

9 Junior compound rest needed

Matt Williams
 

Hi, I just joined, generally I like to read more than comment, but hey here it goes. I like to learn, I like lathes and hope gain some knowledge. Yesterday I bought a SB 9" Junior that has quick change gears, silent chain drive and is on legs. Is is not worn but is missing the compound rest. Really the compound got cut in two and has a motor driven milling attachment now. Would anyone know where I could buy a compound for it ? Thank you for any help that might be offered.

Re: New Member

Matt Williams
 

I'm in upstate New York , but I sometimes travel to Washington. Yesterday an old South Bend 9 Junior jumped in the car with us on the way home. It needs a compound rest, do you have a spare ?                                                                                                              

Re: New Member

Gregg Eshelman
 

On 6/1/2014 7:07 AM, autocar1980@... [SOUTHBENDLATHE] wrote:



HI, My name is Bill and I'm a lathe hoarder. I find an unwanted lathe I
must bring it home with me.
Well then, how close are you to Weiser, ID? I have some lathes looking to follow someone home.


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Re: Cleaning up black iron pipe

Rick Lathrop <rickv100@...>
 

Steve,

A long way back but I believe so.

Rick

On Jun 1, 2014, at 4:47 PM, "Stephen Bartlett tower.op@... [SOUTHBENDLATHE]" <SOUTHBENDLATHE@...> wrote:

Rick,

I turned schedule 80 black pipe years ago to make new driver tires for a
model locomotive.

I used a home-made form tool of HS steel and managed to get a very good
finish. The tool cut slowly, probably because of the geometry of the
tool, but this was good as it was easier to make six of all equal diameter.

I think it is welded pipe but the weld was never apparent when turning
the pipe and is not visible in the finished parts.

BTW are you descended from the Rev. John L?

Steve Bartlett

Rick Lathrop wrote:

Anyone turned black iron plumbing pipe? I want to use some for a project
and turn the mill scale off.

Rick


------------------------------------
Posted by: Stephen Bartlett <tower.op@...>
------------------------------------

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Re: Brazed half nuts?

John Gallo
 

Thanks for the info Jim. Why didn't they just replace the original half nut part? Seems a lot easier than going through the trouble of brazing on only the threaded part.

Re: Brazed half nuts?

Jim B. <btdtrf@...>
 

It’s a standard practice for REPAIRING worn halfnuts.

 

The only way you can do this is to repair BOTH sides since the threads must match and you need to align them on a screw or slot them after brazing.

 

Yes standard NPT plug.

 

Jim B.


From: SOUTHBENDLATHE@... [mailto:SOUTHBENDLATHE@...]
Sent: Sunday, June 01, 2014 4:40 PM
To: SOUTHBENDLATHE@...
Subject: [SOUTHBENDLATHE] Brazed half nuts?

 

 

I just took apart the apron on my 1939 9A. The half nuts are separate from the levers and were brazed on. Was this the procedure for an early 9A? I find it hard to believe that they both were repaired. Also, the drain plug was missing and I was wondering if this was a standard NPT plug that I could find in a hardware store. Thanks in advance, John.

 

Re: Cleaning up black iron pipe

Stephen Bartlett
 

Rick,

I turned schedule 80 black pipe years ago to make new driver tires for a model locomotive.

I used a home-made form tool of HS steel and managed to get a very good finish. The tool cut slowly, probably because of the geometry of the tool, but this was good as it was easier to make six of all equal diameter.

I think it is welded pipe but the weld was never apparent when turning the pipe and is not visible in the finished parts.

BTW are you descended from the Rev. John L?

Steve Bartlett

Rick Lathrop wrote:

Anyone turned black iron plumbing pipe? I want to use some for a project and turn the mill scale off.

Rick