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Re: is this an original minilathe

 

Here link I found
You see a lot today mini lathes



Dave?
Re: is this an original minilathe

 

I try fined more data on history.?
About all found was size 6 to 7"
But today you find lathes call mini lathes to 8" swing too.?
Back 1960's you see small simple lathes with 6" swing but they where not call mini lathe just small.
Re: is this an original minilathe

 

All saw was done on mill or worst.?
But all got job done.?

If a grinder was used it is not the one thinking of . It call a right angle hand grinder.?

Dave?
Re: is this an original minilathe

 

It would handy to have a surface grinder available, to make precision blocks.

ralphie
Re: LMS 5100 Lathe Bed and Headstock Modifications

 

They have??common carrier rates for over sea shipping.??
The big cargo containers in 2002 cost $6,000. But 60,000 . The common carrier containers is will with lot different cargo .

Dave?
Re: is this an original minilathe

 

Make a raising block on mini lathe not hard. All the power is on head stock makes easy.?

I seen other lathes set with blocks for one of time job then remove.??

Dave?
Re: is this an original minilathe

 

It would interesting on history of current mini lathes.??
I have a lot of info on engin lathes?

I can see a Russian need a small low cost light weight lathe for small fish boats?
If you are? on ocean and a part needs turn it would fit .?
The mini lathe gets the job done. No bells and wishlists?

When I was in? high school and college did iron work.? There was times that the mini lathe would wonderful job. All I had was a grinder and drill got job done.?

Dave?

Bruce J
12:27pm? ?
I cannot find the site where I read this, but the modern Sieg (and Red Bull) 7X Mini lathes were originally based on a 70¡¯s era Soviet small lathe designed for cheap production.
If we¡¯re just going to go by ¡®a small bench top lathe¡¯ we¡¯ll have to go back to the beginning, like that one in the Clickspring, but what we would recognize as a ¡®modern¡¯ lathe would be Ramadan¡¯s lathe of 1775: https://en.wikipedia.org/wiki/Screw-cutting_lathe#Modern_screw-cutting_lathes_(late_18th_to_early_19th_centuries) and perfected by Henry Maudslay who arguably set the current form for a metal lathe with lead screws, cross-slide
Re: is this an original minilathe

 

That why I purchased a 8" no gap on market.

Dave?
Re: is this an original minilathe

 

I once toyed with cutting a gap in the 7x bed, but there isn't enough meat in the bed to do that safely.

Mike Taglieri?

On Wed, Jan 3, 2024, 4:34 PM Charles Kinzer <ckinzer@...> wrote:
And a gap bed configuration would be another alternative.? This would allow swinging (not necessarily machining to the outside diameter) of a larger disc like piece.? Usually something like a disc where you are machining a smaller feature like a shoulder or boring a hole.

It could be a removable gap piece (cheapest way) or a sliding bed to create the gap or close it.

Charles E. "Chuck" Kinzer

On Wednesday, January 3, 2024 at 01:26:56 PM PST, Miket_NYC <mctaglieri@...> wrote:


I wish someone would make "raising blocks" for the 7x minilathe the way South Bend did to make the "Large Swing" model in this article?

I realize that a bigger lathe is bigger in all dimensions and capabilities, but center height is the main area home hobbyists sometimes wish we had more of.? And owners of bigger lathes do too. Logan made this remarkable gadget to get more center height on their 11" lathe without disturbing the headstock.



As you can see, this fastened on the bed as needed moved the spindle up and to the rear, and slowed it down, connecting on the left side to the original spindle. It's a pity someone doesn't make something like this for the 7x lathe. (Any chance you're reading this,? LMS?)

Mike Taglieri?
Re: is this an original minilathe

 

And a gap bed configuration would be another alternative.? This would allow swinging (not necessarily machining to the outside diameter) of a larger disc like piece.? Usually something like a disc where you are machining a smaller feature like a shoulder or boring a hole.

It could be a removable gap piece (cheapest way) or a sliding bed to create the gap or close it.

Charles E. "Chuck" Kinzer

On Wednesday, January 3, 2024 at 01:26:56 PM PST, Miket_NYC <mctaglieri@...> wrote:


I wish someone would make "raising blocks" for the 7x minilathe the way South Bend did to make the "Large Swing" model in this article?

I realize that a bigger lathe is bigger in all dimensions and capabilities, but center height is the main area home hobbyists sometimes wish we had more of.? And owners of bigger lathes do too. Logan made this remarkable gadget to get more center height on their 11" lathe without disturbing the headstock.



As you can see, this fastened on the bed as needed moved the spindle up and to the rear, and slowed it down, connecting on the left side to the original spindle. It's a pity someone doesn't make something like this for the 7x lathe. (Any chance you're reading this,? LMS?)

Mike Taglieri?
Re: is this an original minilathe

 

I wish someone would make "raising blocks" for the 7x minilathe the way South Bend did to make the "Large Swing" model in this article?

I realize that a bigger lathe is bigger in all dimensions and capabilities, but center height is the main area home hobbyists sometimes wish we had more of.? And owners of bigger lathes do too. Logan made this remarkable gadget to get more center height on their 11" lathe without disturbing the headstock.



As you can see, this fastened on the bed as needed moved the spindle up and to the rear, and slowed it down, connecting on the left side to the original spindle. It's a pity someone doesn't make something like this for the 7x lathe. (Any chance you're reading this,? LMS?)

Mike Taglieri?
Re: is this an original minilathe

 

¿ªÔÆÌåÓý

I cannot find the site where I read this, but the modern Sieg (and Red Bull) 7X Mini lathes were originally based on a 70¡¯s era Soviet ?small lathe designed for cheap production.

If we¡¯re just going to go by ¡®a small bench top lathe¡¯ we¡¯ll have to go back to the beginning, like that one in the Clickspring, but what we would recognize as a ¡®modern¡¯ lathe would be Ramadan¡¯s lathe of 1775:??and perfected by Henry Maudslay who arguably set the current form for a metal lathe with lead screws, cross-slide, toolrest and change gears to enable mass production of precision threads.

Arguably the Atlas/Craftsman were the hobbyist forebears of ¡®our¡¯ current mini-lathes. There were others, the smallest South Bend lathes, and others of the 1930¡¯s era machines would also fit, like this one:?

$163 in 1929 for the smallest 9x11 is equivalent to ~$2900 today, so these were hardly ¡®hobbyist¡¯ items



On Jan 3, 2024, at 1:01 PM, davesmith1800 <davesmith1@...> wrote:

I think looking for when name mini lathe was first used.?
You find some small athd dating back to at least the 1600's. Witch to could class of mini lathe.?
When I first saw mini lathe they where only 6" now you see then 7 and 8" but using same frame as 6"?
The one I have has been raise to 8" and you see the block in photo.?

Dave?

<rising block.jpg>

--?
Bruce Johnson

The less a man knows about how sausages and laws are made, the easier it is to steal his vote and give him botulism.

Re: is this an original minilathe

 

¿ªÔÆÌåÓý

??? ??? The one that was in Clickspring's? youtube has all of those beat .

animal

On 1/3/24 12:01 PM, davesmith1800 wrote:

I think looking for when name mini lathe was first used.?
You find some small athd dating back to at least the 1600's. Witch to could class of mini lathe.?
When I first saw mini lathe they where only 6" now you see then 7 and 8" but using same frame as 6"?
The one I have has been raise to 8" and you see the block in photo.?

Dave?

Attachments:

Re: LMS 5100 Lathe Bed and Headstock Modifications

 

Have you checked the unit price from Chinese brokers of 7x14 lathes?? ? One broker lists them at $99.00 for any quantity (yes, plus shipping- negotiable).

Anyone on this forum could QC the lathe in 10 minutes - takes longer for the paint to dry.
--
Lone Tree, Colorado? ?USA

Re: is this an original minilathe

 

I think looking for when name mini lathe was first used.?
You find some small athd dating back to at least the 1600's. Witch to could class of mini lathe.?
When I first saw mini lathe they where only 6" now you see then 7 and 8" but using same frame as 6"?
The one I have has been raise to 8" and you see the block in photo.?

Dave?

Re: is this an original minilathe

 

Maybe this one?

On 1/3/2024 1:27 PM, davesmith1800 wrote:
The mini lathe would date back to 1700's for gun making.
I would say it definitely a contender for modern mini lathe.

Some small lathes would need power feed as operator was foot power.? The larger lathe was run by? water and machinist was power feed.

Dave




Re: is this an original minilathe

 

The mini lathe would date back to 1700's for gun making.?
I would say it definitely a contender for modern mini lathe.?

Some small lathes would need power feed as operator was foot power.? The larger lathe was run by? water and machinist was power feed.

Dave?

Re: is this an original minilathe

 

I would say absolutely not.? There have been a VAST number of small lathes produced, often for watchmaking or model making purposes.

However, this does bring up the question of just what IS a "mini lathe."? I doubt there is some specific definition to distinguish it from just being a small lathe.? But I think there might be some criteria.? And also, what seems have developed in the lexicon of lathe types commercially and casually.

My opinion:

First, in the realm of metal lathes, is that it must be an "engine lathe" (which the lathe in the link is not).? This means it has a powered carriage movement at a minimum.

Second, it must be not too big nor not too small.? The "7 inch" swing seems to what the marketplace has decided upon.? (This swing dimension being diameter over the ways.? In some parts of the world, the swing is the radius at 3 1/2 inches).? Larger are usually not called "mini" and have no such prefix moniker.? Smaller are called "Micro" and smaller yet "Baby."

Third, it usually refers to one of the Chinese imports (no matter whose name is on it).? However, lathes from elsewhere, if close to the first two criteria, could reasonably also be called "mini lathes."

Woodworking lathes have a different definition for the term and tend to mean 8 to 10 inch swiing or similar small size in their world.? But those aren't metal lathes.

Charles E. "Chuck" Kinzer


On Wednesday, January 3, 2024 at 09:34:16 AM PST, fxkl47BF via groups.io <fxkl47bf@...> wrote:










Re: SPEAKIN BOUT FUSES

 

We once encountered a situation where someone HAD used a water pipe for a ground connection.? It was at a very rustic resort.? We found that the water flowing from the bathroom faucet was "hot" relative to the metal drain.? It wasn't 120V but there was enough voltage there to get your attention.? And it was due to the fact that some of the galvanized had been replaced by plastic, interrupting the ground circuit.

So it's not a theoretical possibility.? We quickly contacted the resort's maintenance folks once we discovered the problem.?

The plumber who replaced the pipe probably had no idea that it might cause a problem like that.

Re: LMS 5100 Lathe Bed and Headstock Modifications

 

One of the things I learned while looking for appliances to put into our rental was that _every_ model from just about _every_ vendor had some negative reviews.? I don't think that comparing consumer-grade appliances to hobbyist-grade machine tools is a big stretch.? This is because both are very price-sensitive so the manufacturers have to manage their manufacturing so they can make money in the face of low profit margins.? The end result is a percentage of less than perfect items coming out of the manufacturing floor.? In those situations QC probably is a sampling process -- because time is money, and there isn't much to spare to make that profit margin.? So even "good" vendors will sometimes sell not-so-good product.

?

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