CA-ALL 3" Round brass stock source?

[David]

Looking to buy some 3" round brass stock.
MSM is closed today so I don't know if they even carry it.

 

[Tom Kitta]

How big do you need it? 3" round by?

 

[David]

Maybe 3" - 4"?

 

[DPittman]

Looking to buy some 3" round brass stock.
MSM is closed today so I don't know if they even carry it.

Eeeks that will be expensive! Whatcha building? What ever it is will naturally be beautiful being made out of brass.

If you ever need 2" brass or even 3" copper, I like would be willing to sell some of my stock.

 

[David]

Eeeks that will be expensive! Whatcha building? What ever it is will naturally be beautiful being made out of brass.

If you ever need 2" brass or even 3" copper, I like would be willing to sell some of my stock.

I want to try scratch building a Wig-Wag engine a la Ade Swash.
The flywheel is 68mm
I'm also thinking that an aluminum flywheel with steel or brass inserts pressed into the rim could be an alternative.
Or just make the flywheel from steel.

 

[YotaBota]

I don't know if aluminium would work very well, flywheels by nature require mass/weight and alum that size doesn't have much.

Have you seen his miniature lathe?

 

[David]

I don't know if aluminium would work very well, flywheels by nature require mass/weight and alum that size doesn't have much.

Have you seen his miniature lathe?

Yes, it’s amazing.
What about aluminum with brass inserts around the rim for more mass?
Or just steel I suppose.

 

[DPittman]

I don't know if aluminium would work very well, flywheels by nature require mass/weight and alum that size doesn't have much.

Have you seen his miniature lathe?

If you found a price of brass pipe for the outside diameter where the weight really makes a difference then you could maybe get by with an aluminum core?

I also have a chunk of 57mm/2.250" solid brass round if need.

 

[YotaBota]

What's your train of thought behind using aluminium? Cost?

 

[David]

If you found a price of brass pipe for the outside diameter where the weight really makes a difference then you could maybe get by with an aluminum core?

I also have a chunk of 57mm/2.250" solid brass round if need.

That’s an excellent idea, thanks!

 

[David]

What's your train of thought behind using aluminium? Cost?

Yes, brass is insanely expensive.

 

[Proxule]

A little investing in some ceramic wool or castable refractory and you can pour your own brass or bronze bar stock,

 

[David]

Another alternative is

A little investing in some ceramic wool or castable refractory and you can pour your own brass or bronze bar stock,

oh yes, that’s crossed my mind six or seven times

 

[David]

Another alternative are the cast iron flywheels from Martin Models.

 

[YYCHM]

My WigWag is all steel except for the piston and cylinder.

 

[Hruul]

could you use some lead slugs in the outer ring that was covered to add the mass you need?

 

[David]

My WigWag is all steel except the piston and cylinder.

Do you have a picture of it Craig?

 

[David]

could you use some lead slugs in the outer ring that was covered to add the mass you need?

That could work too.

 

[YYCHM]

Do you have a picture of it Craig?

My WigWag Engine Build

Brian H inspired me to attempt a wigwag engine build so here is what I have so far. The easy part, the base and column. Sourced a piece of 3" round from @johnnielsen for the fly wheel. Thanks John! Aluminum cylinder made from square stock with the cylinder bore offset on the...

canadianhobbymetalworkers.com

My first stem engine build

I started this little wobble engine on Jan. 1. I was really excited to have it run the first attempt.

canadianhobbymetalworkers.com

 

[Susquatch]

I inherently dislike slugs. Doesn't take much to destroy the balance. A steel or cast iron ring cut from a big pipe would make more sense. But if worse comes to worse, you could buy some brass from Metal Supermarkets. I know they have 3" cuz I bought some a few years back to make a transmission sleeve for a tractor. I wasn't worried about cost though. The factory part was well over a grand.