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Type: Posts; User: johnoder

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1. ## Thread: Auto-Feed Gearing: How to slow? (11" Standard Change Gear)

by johnoder
Replies
15
Views
311

### Sounds like they are all 16DP since they run with...

Sounds like they are all 16DP since they run with each other - so now you know about that fact as far as gear hunting

Example is the 53

We add TWO to that, making 55

55 divided by 3.42 =...
2. ## Thread: Auto-Feed Gearing: How to slow? (11" Standard Change Gear)

by johnoder
Replies
15
Views
311

### Tell us which you have we are interested in...

Tell us which you have

we are interested in Diametral Pitch

14 DP will be 2.429 O.D. on the 32
16 DP will be 2.125 O.D. " " "
18 DP will be 1.889 O.D. " " "
3. ## Thread: Auto-Feed Gearing: How to slow? (11" Standard Change Gear)

by johnoder
Replies
15
Views
311

### And a way to calculate that is 110/32 X 106/53 =...

And a way to calculate that is 110/32 X 106/53 = 6.875 to 1

lead screw pitch of 8 (do not know if your 11 has this) of .125" / 6.875 = .0182" for a feed rate

You can change this to about .009"...
4. ## Thread: Auto-Feed Gearing: How to slow? (11" Standard Change Gear)

by johnoder
Replies
15
Views
311

### You have a compound there, just not enough -...

You have a compound there, just not enough - maybe 2 to 1. Smaller and larger compound gears would make quite a difference, but may require another idler to reach to the screw gear.

A good way to...
5. ## Thread: Check Out His HUGE Lodge & Shipley Lathe Found at HGR

by johnoder
Replies
9
Views
480

### It does look that way - and it also has a Model X...

It does look that way - and it also has a Model X looking head stock - making it a hybrid of old and new

Ordinarily, a "G" will have head stock levers like so

290098

The "G" was 12 speeds,...
6. ## Thread: Check Out His HUGE Lodge & Shipley Lathe Found at HGR

by johnoder
Replies
9
Views
480

### Sort of a Model G No feed rod is dead...

Sort of a Model G

No feed rod is dead giveaway.

From 1893 to at least post WW2 all the really heavy duty L&S used nothing but the lead screw - with its full length key way - driving some almost...

by johnoder
Replies
3
Views
238

### Amazing what the the manual does not say about...

Amazing what the the manual does not say about converting to metric

No mention of tooth counts other than 120 which you had as a normal idler - and the changes to the input gear of the QC

No...
8. ## Thread: why did my surface grinder do this?

by johnoder
Replies
26
Views
921

### Wheel right? Ancient Norton book says 37C 30...

Wheel right?

Ancient Norton book says 37C 30 grit K grade - that there is a silicon carbide wheel
9. ## Thread: How to best Chuck a narrow gear

by johnoder
Replies
6
Views
392

### Make yourself a an expanding mandrel on the end...

Make yourself a an expanding mandrel on the end of a piece of stock in the lathe - have it fit the bore, and have a shoulder for the back face of the gear to sit against. Hack saw lots after tapping...
10. ## Thread: How much does this lathe weigh?

by johnoder
Replies
13
Views
835

### More on back gears. Same 16" with the chart...

More on back gears. Same 16" with the chart above.

Here is the back - with big lever in that attitude, the back gears are disengaged - meaning the spindle is "running open belt" in the three...

by johnoder
Replies
8
Views
845

### Another related thread - some repetition as to...

Another related thread - some repetition as to images

ON TOPIC Meaning of Trepanning and Trepanning Tool

ph
12. ## Thread: Locate Part RT Rotation Center Of Rotation Off Part

by johnoder
Replies
4
Views
425

### Just so Then the RT is just a "mover", not...

Just so

Then the RT is just a "mover", not involved in radius making
13. ## Thread: How much does this lathe weigh?

by johnoder
Replies
13
Views
835

### Here are some of the levers. I'll suppose the...

Here are some of the levers. I'll suppose the one I left out to right of QC selects between feed rod or lead screw. I'll add that the feed reverse has a NEUTRAL that you park it in when cutting...

by johnoder
Replies
8
Views
845

https://www.practicalmachinist.com/vb/cincinnati-milacron-kearney-trecker-vn-usa-heavy-iron/heavy-iron-being-built-houston-1975-a-286243/?highlight=Drilco

15. ## Thread: Help with serial number and opinions of possible purchase.

by johnoder
Replies
13
Views
1,134

### 4 to 5 floor space length mid thirties vintage 7...

4 to 5 floor space length mid thirties vintage 7 feet for #4 and 8 foot 7 1/2" for #5 - which seems a bunch

by johnoder
Replies
12
Views
971

### Here is that odd page from February 1926 showing...

Here is that odd page from February 1926 showing 1900ish apron parts

289793
17. ## Thread: Tensile strength loss with heat

by johnoder
Replies
25
Views
1,189

### You can see the same size / type material and...

You can see the same size / type material and what the effect on strength is at differing tempering temperatures in this mass effect data

289700
18. ## Thread: truing L00 backplate to spindle nose

by johnoder
Replies
10
Views
452

### Related thread truing a collet chuck on an L00...

truing a collet chuck on an L00 spindle

by johnoder
Replies
16
Views
941

### Yep, maybe the Great War - August 1914 to...

Yep, maybe the Great War - August 1914 to November 1918.
20. ## Thread: truing a collet chuck on an L00 spindle

by johnoder
Replies
6
Views
428

### "L" type threads just pull it up on the taper -...

"L" type threads just pull it up on the taper - and the NAME says it all - "L" is for LONG TAPER

You have to consider the back plate angle is not exactly like the spindle nose angle. Get some...
21. ## Thread: How much does this lathe weigh?

by johnoder
Replies
13
Views
835

### ATW did not publish weights in this 100 plus year...

ATW did not publish weights in this 100 plus year old pub - thanks to Greg Menke for hosting this

http://pounceatron.dreamhosters.com/docs/atw/atw-efficiency-bulletin-1919-si.pdf

good luck - it...
22. ## Thread: series O saddle compound screw, how do i get er off?

by johnoder
Replies
3
Views
182

### See the flats on the hexagon? Unscrew that...

See the flats on the hexagon?

Unscrew that bushing

But you may want to see if there are any set screws preventing the unscrewing - surely they were on the ball enough to not require the saddle...

by johnoder
Replies
8
Views
845

### Probably not DIY Three facet cutting tool and...

Probably not DIY

289548

There is way more to it though - like reliably evacuating fountain of chips coming off that tool. This is...
24. ## Thread: How much does this lathe weigh?

by johnoder
Replies
13
Views
835

### Posting photos ...

Posting photos

https://www.practicalmachinist.com/vb/south-bend-lathes/posting-pictures-south-bend-forum-372508/?highlight=photos

Its competitor (belt drive but geared head) - made in the same...

by johnoder
Replies
1
Views
217

### Works well ...

Works well

https://www.practicalmachinist.com/vb/south-bend-lathes/posting-pictures-south-bend-forum-372508/?highlight=photos
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