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Large work holding

 

I did not see last September.?
I think most mini lathes have a 3" or 4" 3 jaw.?
I do not know swing of your lathe.
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The first did after the tool post was get a 5" 4 jaw chuck for the larger parts also a 4 jaw will grip a little larger too.?
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My 5" 4j will grip around 6" .
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If find used 6" 4j it will do around 7"
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Dave?
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On Thu, Sep 19, 2024 at 02:09 AM, David James wrote:

It is a 2 cylinder double sided beam engine. A bit too big for my small machines, I will try to attach the plan
 

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I’m too lazy to look it up but there’s an arbitrary point, about 500C I think, that delineates soldering & brazing.

?

Otherwise as said it’s just melting a filler material into the joint.? Where the heat comes from doesn’t matter, I’ve used a torch on electronics (some things really need a lot of heat that most soldering irons just can’t deliver).

?

Tony

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From: [email protected] <[email protected]> On Behalf Of Bruce J via groups.io
Sent: Saturday, 21 September 2024 5:43 AM
To: [email protected]
Subject: Re: [7x12MiniLathe] Large work holding

?

And honestly the only difference between ‘brazing’ and ’soldering’…is the temperature.?

?

Both are the same process: joining metal by melting a metal of a lower melting point to ‘wet’ the metal to be joined with the aid of a flux.

?

Cleanliness, flux, heat.?

?

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On Sep 20, 2024, at 10:01?AM, Miket_NYC via groups.io <mctaglieri@...> wrote:

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Actually, that old plumber's "3 basic rules" apply just as well to brazing as to soft soldering. You're just using different flux and (a lot) more heat.

?

Mike Taglieri?

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On Fri, Sep 20, 2024, 12:46 PM Ralph Hulslander via <rhulslander=[email protected]> wrote:

You do not want to "solder" a steam boiler! You need to braze it.

?

I do have to admit I have soldered a steam coil which was not directly fired.

?

Ralph

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On Thu, Sep 19, 2024 at 9:07?PM Roy via <roylowenthal=[email protected]> wrote:

The old plumber who taught me to solder had 3 basic rules:

?

?1. Cleanliness is the key to success - surfaces to be soldered MUST be cleaned to bright, shiny metal.

?

?2. Flux is your friend - apply it to all surfaces before heating.

?

?3. Solder flows towards the heat source - that was before hot melt glue guns were common.? The basic idea was to apply heat to the area you want the solder to flow towards, not the outer surface.

?

Roy

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?

--?
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.

?
 

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Just to add to point #3, the part needs to be hot enough to melt the solder.

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The iron or torch is used only to heat up the part, not melt the solder / braze / whatever.? Please take note, YouTube videos full of cold joints.

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Tony

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From: [email protected] <[email protected]> On Behalf Of Roy via groups.io
Sent: Friday, 20 September 2024 11:08 AM
To: [email protected]
Subject: Re: [7x12MiniLathe] Large work holding

?

The old plumber who taught me to solder had 3 basic rules:

?

?1. Cleanliness is the key to success - surfaces to be soldered MUST be cleaned to bright, shiny metal.

?

?2. Flux is your friend - apply it to all surfaces before heating.

?

?3. Solder flows towards the heat source - that was before hot melt glue guns were common.? The basic idea was to apply heat to the area you want the solder to flow towards, not the outer surface.

?

Roy
 

It's not just the lower melting temperature; the cadmium makes the liquid flow better.
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Roy
 

I ALWAYS use cadmium-bearing alloys because of their lower melting temperature. I keep a window open in my basement shop and a fan blowing from one side? so any fumes get diluted and blown away from me.? I'm still vertical. So far.

Mike Taglieri?


On Sat, Sep 21, 2024, 7:15 PM Roy via <roylowenthal=[email protected]> wrote:
The 95/5 alloy is the nicest Pb free plumbing solder! I still miss the Cd containing brazing alloys for their ease of use; that's with my head - the rest of the innards are happier not being exposed to it.
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Roy
 

The 95/5 alloy is the nicest Pb free plumbing solder! I still miss the Cd containing brazing alloys for their ease of use; that's with my head - the rest of the innards are happier not being exposed to it.
?
Roy
 

I try to avoid the phrase "silver solder" nowadays because people use it to mean two entirety different things: silver brazing alloys and soft solder that's 5% silver and 95% tin. The latter is just one of the many lead-free soldiers used in plumbing now, but manufacturers love to call it "silver solder" on the package because it sounds so elegant and fancy.??

So now I always say "silver brazing alloy" or "5% silver solder."? ?No point in confusing people.

Mike Taglieri?


On Sat, Sep 21, 2024, 9:28 AM terry.moore50 via <terryimoore=[email protected]> wrote:
Don’t forget silver soldering. A number of model boilers are sealed using easy flow flux with silver solder. You can’t mix it with soft solder though! Any old soft solder residue has to be completely removed which is not easily accomplished. Terry UK.
 

Don’t forget silver soldering. A number of model boilers are sealed using easy flow flux with silver solder. You can’t mix it with soft solder though! Any old soft solder residue has to be completely removed which is not easily accomplished. Terry UK.
 

For a lot of small projects a Turbo Torch using MAPP gas works fine. The conversion requires replacing the metering orifice with the MAPP specific one.
?
Roy
 

I've heard brazing referred to as hard soldering, mostly in the AC&R field when using a silver alloy filler rod.
?
Roy
?
 

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There’s been a couple of plans in Popular Mechanics over the decades for making one of those carbon arc welders. They can be used for brazing.

I think have a copy of the articles at home; if I remember I’ll post the pdf I made. (Not feeling the greatest…had a molar extracted today and the novocaine has worn off)

On Sep 20, 2024, at 2:08?PM, Jacques Savard via groups.io <jacquessavard@...> wrote:

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I have? a vintage? old? welding? electric? machine
?
only a transformer? ?and? tip
BUT?
he said? you? can do? ''broading? ''? put x2? tip? of? carbone? ?like? the onle? in? D batt? zink carbone
onr
?
about? 1\4? size
?
and there is? the method?
just? put? the end? near? ? a? beautufull? arch appear? ?and if you? make? a? distence betting? you got a powerfull plasma?
?
they? you can welding? or cut? everything? ?low? tmeps? or? higt? ?or? just? spot? welding?
?
I put a big? variac? befor? the? set? up alos?
?
like this? i can? control? the power? of? plasma??
?
be? carfull? put? good? welding? glass? it is? very? very? bright
?
jack 4771

--?
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.

 

?
I have? a vintage? old? welding? electric? machine
?
only a transformer? ?and? tip
BUT?
he said? you? can do? ''broading? ''? put x2? tip? of? carbone? ?like? the onle? in? D batt? zink carbone
onr
?
about? 1\4? size
?
and there is? the method?
just? put? the end? near? ? a? beautufull? arch appear? ?and if you? make? a? distence betting? you got a powerfull plasma?
?
they? you can welding? or cut? everything? ?low? tmeps? or? higt? ?or? just? spot? welding?
?
I put a big? variac? befor? the? set? up alos?
?
like this? i can? control? the power? of? plasma??
?
be? carfull? put? good? welding? glass? it is? very? very? bright
?
jack 4771
 

I have? a vintage? old? welding? electric? machine

only a transformer? ?and? tip
BUT?
he said? you? can do? ''broading? ''? put x2? tip? of? carbone? ?like? the onle? in? D batt? zink carbone
onr

about? 1\4? size

and there is? the method?
just? put? the end? near? ? a? beautufull? arch appear? ?and if you? make? a? distence betting? you got a powerfull plasma?

they? you can welding? or cut? everything? ?low? tmeps? or? higt? ?or? just? spot? welding?

I put a big? variac? befor? the? set? up alos?

like this? i can? control? the power? of? plasma??

be? carfull? put? good? welding? glass? it is? very? very? bright

jack 4771
 

I can "solder" in my sleep but have had problems with brazing. My first limitation is I only have a Turbo torch not oxy acetylene.


On Fri, Sep 20, 2024 at 3:42?PM Bruce J via <bruce.desertrat=[email protected]> wrote:
And honestly the only difference between ‘brazing’ and ’soldering’…is the temperature.?

Both are the same process: joining metal by melting a metal of a lower melting point to ‘wet’ the metal to be joined with the aid of a flux.

Cleanliness, flux, heat.?


On Sep 20, 2024, at 10:01?AM, Miket_NYC via <mctaglieri=[email protected]> wrote:

Actually, that old plumber's "3 basic rules" apply just as well to brazing as to soft soldering. You're just using different flux and (a lot) more heat.

Mike Taglieri?

On Fri, Sep 20, 2024, 12:46 PM Ralph Hulslander via <rhulslander=[email protected]> wrote:
You do not want to "solder" a steam boiler! You need to braze it.

I do have to admit I have soldered a steam coil which was not directly fired.

Ralph

On Thu, Sep 19, 2024 at 9:07?PM Roy via <roylowenthal=[email protected]> wrote:
The old plumber who taught me to solder had 3 basic rules:
?
?1. Cleanliness is the key to success - surfaces to be soldered MUST be cleaned to bright, shiny metal.
?
?2. Flux is your friend - apply it to all surfaces before heating.
?
?3. Solder flows towards the heat source - that was before hot melt glue guns were common.? The basic idea was to apply heat to the area you want the solder to flow towards, not the outer surface.
?
Roy





--?
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.

 

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And honestly the only difference between ‘brazing’ and ’soldering’…is the temperature.?

Both are the same process: joining metal by melting a metal of a lower melting point to ‘wet’ the metal to be joined with the aid of a flux.

Cleanliness, flux, heat.?


On Sep 20, 2024, at 10:01?AM, Miket_NYC via groups.io <mctaglieri@...> wrote:

Actually, that old plumber's "3 basic rules" apply just as well to brazing as to soft soldering. You're just using different flux and (a lot) more heat.

Mike Taglieri?

On Fri, Sep 20, 2024, 12:46 PM Ralph Hulslander via <rhulslander=[email protected]> wrote:
You do not want to "solder" a steam boiler! You need to braze it.

I do have to admit I have soldered a steam coil which was not directly fired.

Ralph

On Thu, Sep 19, 2024 at 9:07?PM Roy via <roylowenthal=[email protected]> wrote:
The old plumber who taught me to solder had 3 basic rules:
?
?1. Cleanliness is the key to success - surfaces to be soldered MUST be cleaned to bright, shiny metal.
?
?2. Flux is your friend - apply it to all surfaces before heating.
?
?3. Solder flows towards the heat source - that was before hot melt glue guns were common.? The basic idea was to apply heat to the area you want the solder to flow towards, not the outer surface.
?
Roy





--?
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.

 

Actually, that old plumber's "3 basic rules" apply just as well to brazing as to soft soldering. You're just using different flux and (a lot) more heat.

Mike Taglieri?

On Fri, Sep 20, 2024, 12:46 PM Ralph Hulslander via <rhulslander=[email protected]> wrote:
You do not want to "solder" a steam boiler! You need to braze it.

I do have to admit I have soldered a steam coil which was not directly fired.

Ralph

On Thu, Sep 19, 2024 at 9:07?PM Roy via <roylowenthal=[email protected]> wrote:
The old plumber who taught me to solder had 3 basic rules:
?
?1. Cleanliness is the key to success - surfaces to be soldered MUST be cleaned to bright, shiny metal.
?
?2. Flux is your friend - apply it to all surfaces before heating.
?
?3. Solder flows towards the heat source - that was before hot melt glue guns were common.? The basic idea was to apply heat to the area you want the solder to flow towards, not the outer surface.
?
Roy
 

You do not want to "solder" a steam boiler! You need to braze it.

I do have to admit I have soldered a steam coil which was not directly fired.

Ralph

On Thu, Sep 19, 2024 at 9:07?PM Roy via <roylowenthal=[email protected]> wrote:
The old plumber who taught me to solder had 3 basic rules:
?
?1. Cleanliness is the key to success - surfaces to be soldered MUST be cleaned to bright, shiny metal.
?
?2. Flux is your friend - apply it to all surfaces before heating.
?
?3. Solder flows towards the heat source - that was before hot melt glue guns were common.? The basic idea was to apply heat to the area you want the solder to flow towards, not the outer surface.
?
Roy
 

The old plumber who taught me to solder had 3 basic rules:
?
?1. Cleanliness is the key to success - surfaces to be soldered MUST be cleaned to bright, shiny metal.
?
?2. Flux is your friend - apply it to all surfaces before heating.
?
?3. Solder flows towards the heat source - that was before hot melt glue guns were common.? The basic idea was to apply heat to the area you want the solder to flow towards, not the outer surface.
?
Roy
 

Johannes,
I am not very good at soldering and I am scared of boilers bursting so I use a small air compressor to run my steam engines.?
Yes the plans were converted to metric by Mr. J. de Waal in New Zealand, he has a lot of plans on his site which is shown at the bottom of the plans.
I prefer to work in metric if I can but most plans are either old British plans or American plans and then I work in imperial.
Regards
?
Dave
Borneo
 

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Hi David
A beautiful machinery, keeps us updated.
Missing the boiler, is it possible to make one, or do you need a big air pump?

And the drawing is in metric!

Johannes
Mexico


From: [email protected] <[email protected]> on behalf of David James via groups.io <davebjames@...>
Sent: Thursday, September 19, 2024 2:09 AM
To: [email protected] <[email protected]>
Subject: Re: [7x12MiniLathe] Large work holding
?
It is a 2 cylinder double sided beam engine. A bit too big for my small machines, I will try to attach the plan

Attachments:

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