[modeleng] Re: My latest model .... and the Triple
- From: "Terry Lane" <tel@xxxxxxxxxxx>
- To: <modeleng@xxxxxxxxxxxxx>
- Date: Thu, 16 Dec 2004 05:18:54 +1100
Ah, but how big was the spindle bore?
> Guys
>
> Where I used to work we had a lathe that could bore to a length of 190
> feet, I have a book somewhere too and if I can find it I'll post some
> pictures.
>
> Regards,
>
> IP
>
> Priest & Sons Model Engineers
> http://www.kinvermes.pwp.blueyonder.co.uk/p1.htm
>
>
> -----Original Message-----
> From: modeleng-bounce@xxxxxxxxxxxxx
> [mailto:modeleng-bounce@xxxxxxxxxxxxx] On Behalf Of alanjstepney
> Sent: 15 December 2004 16:56
> To: modeleng@xxxxxxxxxxxxx
> Subject: [modeleng] Re: My latest model .... and the Triple
>
>
> I have a picture (somewhere) in a very old book showing a lathe some 60
> odd
> foot long, with a faceplate of, something around 12 ft diameter. From
> memory, the fastest speed was under 10 rpm.
>
> I would guess that the crankshaft was turned, but my ML7 wouldn't help!
> alan@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>
> www.alanstepney.info
> Model Engineering, Steam Engine, and Railway technical pages.
>
>
> ----- Original Message -----
> From: "Harry Wade" <hww@xxxxxxxx>
> To: <modeleng@xxxxxxxxxxxxx>
> Sent: Wednesday, December 15, 2004 4:06 PM
> Subject: [modeleng] Re: My latest model .... and the Triple
>
>
> At 09:02 AM 12/15/04 -0600, you wrote:
> >>A scale model of it would be fascinating.
>
> 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.
> With respect to Stuarts, I was a Stuart dealer for a few years,
> which I discontinued because the prices slowed sales to a crawl not
> detectable to the human eye, but IHMO they don't have a calculated "all
> the traffic will bear and then some" attitude. As most of you know for
> some years Stuarts has been owned by an industrial corporation and it's
> my guess that a certain level of profitable performance is expected from
> the Stuart "division" and that performance will be met, regardless of
> what it does to the consumer price. I'm sure they do what they can to
> contain costs, but profitability must be maintained so as the costs for
> kitting the engines rise the increase is passed along to the consumer.
>
> Regards,
> Harry
>
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