Author Topic: Big Marine Steam Engine (Read 108809 times)

Stilldrillin · « **Reply #25 on:** July 21, 2011, 01:58:19 AM »

That's going to be some engine John!

You're putting a lot of good work into it......

David D

Brass_Machine · « **Reply #26 on:** July 21, 2011, 01:35:45 PM »

Nice work!

Eric

doubleboost · « **Reply #27 on:** July 22, 2011, 06:33:11 PM »

Had a day off work (so i spent it working in the shop )

Made a start on the con rod , i was going to machine it from soild but decided on a fabricated job

Finally a bit of stress relief

Shoild get it machined tomorrow
John

lordedmond · « **Reply #28 on:** July 23, 2011, 04:07:08 AM »

How will the CI ring wear in the bronze cylinder ?

I have only used CI rings in CI cylinders , I do use 'O' rings in bronze or soft packing

Nice work BTW I am not criticising just asking as I am knocking up a triple expansion engine that uses a bronze block and bronze rings , I an thinking of using CI as i know it will work

Stuart

Mike Cole · « **Reply #29 on:** July 23, 2011, 03:41:00 PM »

Very nice work, I am very inpressed with the crank. is this engine going in a boat when finished?

Mike

doubleboost · « **Reply #30 on:** July 23, 2011, 05:07:07 PM »

Hi
Stuart
I think the iron rings and piston should work ok
(if anyone has views i would like to hear them)

Mike
It would certainly power a boat but sadly i have no room for one
John

doubleboost · « **Reply #31 on:** July 26, 2011, 05:37:07 PM »

Got a bit more done this weekend
Started on the cross head guide

I had a hell of a job trying to clamp things in to place and then drill and tap them
The weld tacks will be milled off

Bolted and dowell pinned
Propper job
John

doubleboost · « **Reply #32 on:** July 30, 2011, 05:20:14 PM »

Hi
Got a bit more done
All the welds machined off everything debured and cleaned up
The dowel pins make for a nice job
Machined a big lump of bronze in to a cross gead guide

John

doubleboost · « **Reply #33 on:** August 03, 2011, 05:26:01 PM »

Hi
Made a start on the cross head
Starting to get to grips with the rotary table

That is a 3/4 cutter

DaveH · « **Reply #34 on:** August 03, 2011, 05:34:59 PM »

John,

Coming along very nicely.

Nice bit of milling with the rotary table

DaveH

Stilldrillin · « **Reply #35 on:** August 04, 2011, 04:16:20 AM »

Developing very nicely John!

Keep on, keeping on.......

David D

sbwhart · « **Reply #36 on:** August 04, 2011, 05:25:19 AM »

nice RT work

That's going to be one hell of a powerfull engine John, It'll need a big boiler, have you any plans to power something with it ?.

Stew

doubleboost · « **Reply #37 on:** August 04, 2011, 05:44:38 PM »

Hi
Rotary tables are a steep learning curve
Pleased with the result though

I had a feeling this was inside the other half of this block
The hard bit is getting it out

The rod needs cutting to length some threads and silver solder
A bit of taper turning and some file work
John

doubleboost · « **Reply #38 on:** August 07, 2011, 02:52:16 PM »

Hi
Finally got the cross head to go up and down
I made up a dummy con rod to get the length right

I could not help running it up in the lathe
CLICK THE PICTURE

CallMeAl · « **Reply #39 on:** August 07, 2011, 05:52:40 PM »

Wow this is going to me massive! Looks great, I like that base casting and bearing caps. The scale is just right, easy to see all the pieces working.

Al

DaveH · « **Reply #40 on:** August 07, 2011, 06:16:44 PM »

John,

Looks really great, runs even better

What a very nice engine it is going to be.

DaveH

Stilldrillin · « **Reply #41 on:** August 08, 2011, 02:22:23 AM »

SWEET!!

Blummin well done John!

David D

NickG · « **Reply #42 on:** August 08, 2011, 05:14:35 AM »

Very nice John, you intending to power the house with this or something?! It's a fair size!

doubleboost · « **Reply #43 on:** August 08, 2011, 05:53:18 PM »

Hi
Made a start on the front colums (22 mill stainless round bar)
Drill and tap one end screw cut the other and set to length.
They looked ok but very plane
Rob wilson recond on a taper .
Out with my freshly made drive dog

The surface finish is astounding (for me )

Stilldrillin · « **Reply #44 on:** August 09, 2011, 03:43:21 AM »

They look good John.

(I reckon that Rob Wilson knows a thing or two).

David D

madjackghengis · « **Reply #45 on:** August 09, 2011, 11:22:20 AM »

Very nice job going on here, I like to see an engine come together with each part dictating what comes next, and the ability to decide on the fly, how to do each little bit. It makes for a very personal engine, and I have to say, you are going to need a real boiler for that job, when it is finished.

Cheers, Mad Jack

doubleboost · « **Reply #46 on:** August 13, 2011, 05:02:02 PM »

Hi
Made a start on the pattern for the bottom cylinder cover
MDF glued together
Needs a bit of filleting and some paint

Machining it will be interesting
John

doubleboost · « **Reply #47 on:** August 17, 2011, 05:02:09 PM »

Hi
Got the pattern finished
Hopefully it will be turned in to bronze this week end

The wife reccons it looks like a space invader (the old arcade game)

John

PatJ · « **Reply #48 on:** August 17, 2011, 09:24:05 PM »

Looks great John.

You look pretty close to getting it running.

Pat J

CallMeAl · « **Reply #49 on:** August 17, 2011, 10:03:45 PM »

Nice pattern work. Look forward to see it in metal.

Al

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Author Topic: Big Marine Steam Engine (Read 108809 times)

lordedmond

PatJ