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Thanks for the info
Regards,
Giovanni

Here is the Stanley steam engine full-scale boiler.
Giovanni

I am building a 1/4 scale Stanley Flying Tea Kettle landspeed record race steam engine car. It will have a 2-cylinder steam engine fed by a 7.5 inch diameter x 4.5 inch height all-copper boiler....

This would be very simple to scale down for a smaller single-person snow-mobile sized vehicle. A builder could even install brush-less motors, batteries and controllers in the screw tubes. This would...

Each Saito 3DTR steam engine displaces approximately 0.5 cubic inch. At 50psi you could expect around 500rpm from both engines running from a 3 1/2" boiler or 700rpm from a 4". One 3DTR engine per...

I found the amazing spiral heliocoil machine!
YouTube - R4 Flat bar spiralling


Thanks,
Giovanni

Thank you guys for the brilliant information.
Making the sheet metal rings is probably the least path of resistance and expense for my crazy project.
I am building a scale model of a Jules Verne...

I have a 4" OD x 32" length stainless-steel tube and would like to use an 1/8" thickness x 3/4" width x 72" length 304L stainless-steel plate. I would like to create a spiral type auger with these...

Here are some pictures.
The hull is 47" length and the widest beam is 10.25".
The full scale submarine is 53'-10" length.
Regards,
John

The 3D cad drawing is incorrect. The sheets are installed on the circular ribs bow to stern not circular. The shape would not be symmetrical. Believe me. I have been designing the build for 2 years....

Yeah! I meant to say carbon. I know it has to be electrically passivated in an acid vat. I deal with lots of stainless-steel. That is why it is my best choice. Can the hull be tempered in a kiln ?...

I am making too many spun hulls for wooden mandrel use.
I would rather use stainless-steel.Is the stainless-steel pickled to get the iron out ?
Regards,
John

Wouldn't the sectional mandrel pieces be prohibitively expensive ?
I'm already getting bids of $2,500.00 for the solid piece mandrels.
One thing about the sectional mandrels is that the steel would...

I agree with you but I have gotten so many different answers on the section joining.
I would rather have your method rather than the butt-welding. It would seem to be much more precise when mating...

I have been talking with metal spinning companies and understand that it is best to use hot rolled steel for machining the mandrels for spinning multiple 6061 aluminum sheet blanks. I have the...

Can carbon fiber panel be laser cut ?
I know that it can be water-jet or router cut.
Regards,
John

Trying to learn the method for melting 316L stainless steel for jewelry casting.Is there a sealed with a lid electric crucible for melting 316L to 3000degress?

Can anyone tell me where I can find a metal spinning forum ?

Are there any copper metal spinners here?

Where can I purchase non-standard 6061 alumunim extrusion profiles?
I'm looking for something that resembles a 2" square tucked inside a 3" angle.I'm building a lightweight chassis and need this...

Are these extrusions 6061?

Anyone here have any experience with hollow shaft brushless servo motors?

One of the best methods for cutting carbon fiber is with a cnc laser cutting machine.It is more exact than waterjet cutting and you can laminate aluminum or titanium with 3M expoxy under a heavy...

I have picked so many machinists' brains trying to find a solution for threading inside diameter 4" O.D. x 3.5" I.D. x 36" length polycarbonate pipe and have come up with a design that I think will...

I have been looking at the Allied Motion CM-900 brushless hollow shaft servo encoder motors for driving screw shafts on 3" diameter x 12" length 1,000ml piston ballast tanks for rov submarines.The...

:confused:I am searching for information how to thread the inside diameter of 4" schedule 80 pvc pipe which has a wall thickness of .337".The female thread needs to be a coarse and straight.I am also...

Molding the hose barb is the best wat to go.
Just need a molded barb that will glue bond well onto the 2" pvc manifolds.

I have already been down that road.The cost to edm the molding die is around $50,000.00 and would have to purchase 10,000 hose barbs minimum order.A machine shop would charge about:confused: a dollar...

My company uses around 5,000-10,000 1/4" x 3/8" brass hose barb fittings and would like to machine a non-metallic fitting.We assemble 2" pvc manifolds with the hose barb fittings for solar pool...

Looking for someone in the West Sacramento,Ca. area to transfer a blueprint to a laser-cutting cnc file.Drawing is 94.5" long and 8.5" widePlease PM me.