[modeleng] Re: My latest model .... and the Triple
- From: "JESSE LIVINGSTON" <fernj1@xxxxxxxxxxxxx>
- To: <modeleng@xxxxxxxxxxxxx>
- Date: Wed, 15 Dec 2004 16:11:36 -0600
Harry,
That crankshaft is probably made in sections as were many of the large
reciprocating steam engine shafts. That way if a bearing goes down, only the
bad section need be replaced. Probably cast as it would take a heck of a
big steam hammer to whop that thing in shape. Still, it must be an awsome
thing to see turning. I see they use a crosshead just as on regular steam
engines.
Jesse
> The thing that strikes me immediately about that engine is the
> machining diffculties, not in modeling it but in full size, and the
> crankshaft in particular. How was the crank made? Forged? Cast? Is it
> made in one piece or in interlocking sections? How was it turned? Or was
> it turned? If it was turned, at what rpm would a 300ton multiple-centered
> crankshaft be turned and who would be bold enough to stand nearby with
that
> much weight rotating eccentrically. Inquiring minds, etc, etc.
MODEL ENGINEERING DISCUSSION LIST.
To UNSUBSCRIBE from this list, send a blank email to,
modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.
Other related posts:
