Sea Lion Engine build

A special section just for steam engines and boilers, as without these you may as well fit a sail.
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Akitene
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Re: Sea Lion Engine build

Post by Akitene » Tue Nov 08, 2016 6:12 pm

Bart, it'll be a most impressive steamboat with grace and allure. Lovely lines.

I've given a look at the engine bed: what a chunk of steel! Your engine promise to be a sturdy and reliable one.
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barts
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Re: Sea Lion Engine build

Post by barts » Mon Nov 28, 2016 12:26 am

Well, I managed to spend a few days in the shop over the last month, and have made some more progress. The engine base has the crank mounted and is supported on a stand on casters so I don't need to lean over so much:
IMG_20161127_150342.jpg
IMG_20161127_150342.jpg (116.74 KiB) Viewed 10237 times
More photos and a very short clip of the crank turning here:
https://goo.gl/photos/QCMViFjvYNQRpW9K9

Next up: make columns, column cross-braces, crosshead guide, crosshead slipper, and connecting rod :). Should keep me busy for a while :).

- Bart
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Bart Smaalders http://smaalders.net/barts Lopez Island, WA
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Re: Sea Lion Engine build

Post by TahoeSteam » Thu Dec 01, 2016 9:04 am

Bart,

Are you going to bring the engine to B&W for show & tell?
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Re: Sea Lion Engine build

Post by barts » Wed Dec 07, 2016 3:46 am

TahoeSteam wrote:Bart,

Are you going to bring the engine to B&W for show & tell?
Sure. Just need to hoist it into the back of the truck. W/ flywheel, larger alternator drive
wheel (another flywheel w/ some flat belt grooves :)) and crankshaft counterweights, I
think it will be 300+ lbs. If I get the columns in place by then, it may fit; it's
pretty tall on its stand w/ that underslung crank and 2.5:1 rod length/stroke ratio.

- Bart
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Bart Smaalders http://smaalders.net/barts Lopez Island, WA
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Re: Sea Lion Engine build

Post by Ironman » Thu Dec 22, 2016 1:39 pm

barts wrote:I spent another weekend in the shop - Barbe (my wife) is very understanding.

Worked on the engine base. Still getting the hang of the 3" face mill; ran it too fast and will be indexing the carbine inserts :).
The DRO saves a lot of time.

- Bart
I'm glad to see you are back at it, Bart.
Now the crank has a home.
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Re: Sea Lion Engine build

Post by barts » Sun Jan 08, 2017 4:17 am

I've been modeling the Sea Lion engine in Fusion 360. Interesting learning some 3D CAD, and the price is right - free. Definitely a bit of a learning curve, but after some futzing around I've got basic motion working for the steam engine.

https://youtu.be/Mazd0D99cNc

Lots more work ahead, both in design and and fabrication.

- Bart
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Re: Sea Lion Engine build

Post by Ironman » Thu Apr 27, 2017 1:33 pm

Thanks for keeping us updated Bart.
Like others, I escaped school and entered the University of Life, and learned the math I had to. Your planning and design skills impress me.
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Re: Sea Lion Engine build

Post by dampfspieler » Thu Apr 27, 2017 8:13 pm

Hello Bart,

how do you want to mount the flywheel on the crankshaft? I have done that with two keyless locking devices at my HASBROUK #10.

Image

They are prevented from water with two discs.

Image

Technical data you can find here.

Best Dietrich
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Lopez Mike
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Re: Sea Lion Engine build

Post by Lopez Mike » Fri Apr 28, 2017 1:23 pm

Dietrich,
Those are wonderful things and I use them all the time on ready made couplings. In your case did you have to cut your own taper in the flywheel? Was the correct angle of taper provided by the manufacturer?
The next time I remove my flywheel I'm going to change it over. I dislike keyways and screws. The least amount of corrosion and there is a terrible problem.
Mike
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Re: Sea Lion Engine build

Post by Mike Rometer » Fri Apr 28, 2017 2:44 pm

Mike, I think if you look at the technical data they are double taper, i.e. expand parallel.
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