¿ªÔÆÌåÓý

  1. 7x12MiniLathe
  2. Messages
Expanded Topics Messages
Date
Re: Extension cross slide

 

I updated my drawing
It now 1" [25.4mm] spacer?
So the stoke is 4.25"?


Dave

CROSS FEED SCREW DEC 25 2023 CROSS FEED SCREW EXT _1_ _1_.pdf
CROSS FEED SCREW DEC 25 2023 CROSS FEED SCREW EXT _1_ _1_.pdf

Re: Extension cross slide

 

I did read how did the extension?
It about same I was planning?
Nice see someone else doing the same way
Below is what he wrote.
The photos he post in photo section here

Thank you?
Dave?

Mini Lathe Cross Slide Bearing Modification & Travel Extension
The cross slide of my 7 x 16 mini lathe never had a nice smooth feel to it since I removed it from the box. I designed this new bolt on cross feed assembly to solve several issues. Some of the new features are: (1) added a ball thrust bearing. (2) Added 3/4" cross slide travel toward the operator with no need to machine out clearance in the saddle casting. (3) New longer, tighter tolerance cross feed screw (4) New bronze 3/8-20 L.H. nut with integral dowel and oil port. (5) New slip ring micrometer dial. (6) Backlash can be adjusted and maintained at less than .002". (7) New hand wheel which is extended out toward the operator to minimize interference with the carriage hand wheel. (8) Hand scraped cross slide mating surfaces improving parallelism and squareness to the lath axis. It has made a dramatic improvement to the lathe. My next project is to do a similar improvement to the compound slide. The picture below shows the comparison of the original screw assembly to the new version.
Re: Extension cross slide

 

¿ªÔÆÌåÓý



On Dec 27, 2023, at 7:28 AM, davesmith1800 <davesmith1@...> wrote:

Here photos from photo section I just found today on what planing on doing

Dave?

/g/7x12MiniLathe/photo/64961/761790?p=Created%2C%2C%2C20%2C2%2C0%2C0


The whole process from Old_toolmaker?

?is a very worthwhile site to peruse..

--?
Bruce Johnson

"Wherever you go, there you are." B. Banzai, PhD

Re: 7 X 16 Cross Feed travel Extension Photos

 

Do you have cad drawing in pdf or dwg? You post or email?

Dave?
Re: Extension cross slide

 
Edited

Here photos from photo section I just found today on what planing on doing

Dave?

/g/7x12MiniLathe/photo/64961/761790?p=Created%2C%2C%2C20%2C2%2C0%2C0
Post on mod
/g/7x12MiniLathe/topic/23818877#100625
Re: Machinist's Tools for Sale

ChazzC
 

That's correct - I bought mine on a whim for around $20 years ago.
Re: Machinist's Tools for Sale

 

If need a little larger caliper I have a 36" like new in wood box.?
It great if just need a little extra size .

Dave?
Re: Machinist's Tools for Sale

 

That looks like the HF model - 24" aluminum caliper. I don't think they sell that one any more... But I do see it on amazon and ebay for under $45

On Tue, Dec 26, 2023 at 7:42?PM ChazzC <chaz-creswell@...> wrote:
That's why I got this a while back:



--
Buffalo John
Re: Machinist's Tools for Sale

 

They are available at American Science & Surplus -



ralphie
Re: Machinist's Tools for Sale

ChazzC
 

That's why I got this a while back:



Not as precise as a micrometer, but adequate for my needs (and a lot cheaper!).
Re: Machinist's Tools for Sale

 

Steady rest for 9A sb lathe
Re: Machinist's Tools for Sale

 

I see you're from the "go big or go home" school of precision tool acquisition.

On Tuesday, December 26th, 2023 at 8:34 PM, davesmith1800 <davesmith1@...> wrote:

Any one need a mic?
I did buy both new just for 16" work.

Dave?

Attachments:
Re: Machinist's Tools for Sale

 

Any one need a mic?
I did buy both new just for 16" work.

Dave?
Re: Extension cross slide

 

It simple on nut to drill a new hole and plug the old hole. No milling need.?
All need is to make a new feed screw with more threads and same time existent the handle.??

The nut is new

Dave?
Re: Extension cross slide

 

Pretty much how I did mine. Someone here, Mike maybe, did it before me. I made a new nut, moved the nut, made a new feed screw and made the extension parts. I added an inch and a quarter towards the operator and almost the same away from the operator as I needed to travel past the chuck for a small milling operation. Works great!
On Dec 26, 2023 at 5:31?PM -0500, davesmith1800 <davesmith1@...>, wrote:

Please post your comments on this project.?

Thank you?
Dave?

Re: Extension cross slide

 

Please post your comments on this project.?

Thank you?
Dave?
Extension cross slide

 

This what I am planning on doing .
Instead of mill the carriage I am moving the not ?" and ?" back for a full 4" movement and a stop for auto feed cross slide later.?

Adding a ?" spacer for full stoke.?

Dave?

CROSS FEED SCREW DEC 25 2023 Model _1_.pdf
CROSS FEED SCREW DEC 25 2023 Model _1_.pdf

Re: Machinist's Tools for Sale

ChazzC
 

Updated Photo of available items:
Re: Marry Christmas

 

Merry Christmas from Central Indiana. Santa was very good to me. Brought me a new watch and a 4-piece Knipex pliers set.?


On Mon, Dec 25, 2023 at 10:39 AM, davesmith1800
<davesmith1@...> wrote:
Marry Christmas?

Re: Marry Christmas

 

¿ªÔÆÌåÓý

backactyha all

animal

On 12/25/23 11:42 AM, Steven Jany wrote:

good one . Merry christmas to you also and a prosperous?new year

On Mon, Dec 25, 2023 at 9:39?AM davesmith1800 <davesmith1@...> wrote:
Marry Christmas?

2561 - 2580 of 120319