[modeleng] Re: 3½ versus 5

Jem, I have no idea what the weight would be of a
3-1/2" or 5" gauge loco would be, but I'll tell you
this: just the running chassis, minus the cylinders,
on my proposed (still building) 7-1/2" gauge weighs
more than I can lift by myself.

Al

--- Jem Harrison <Jem.Harrison@xxxxxxxxxxxxxxx> wrote:

> Thanks Al,
> 
> I am fairly sure that I could use a friends larger
> lathe to turn driving 
> wheels that are too large for the ML10.  Some
> members have industrial 
> machines!
> 
> Best wishes,
> 
> Jem
> ----- Original Message ----- 
> From: "Allen Messer" <al_messer@xxxxxxxxx>
> To: <modeleng@xxxxxxxxxxxxx>
> Sent: Thursday, September 29, 2005 1:58 PM
> Subject: [modeleng] Re: 3½ versus 5
> 
> 
> > Thanks for the info, Jem.  My 10 x 24 Logan may
> face a
> > 10" wheel, but to do the rims and tread on some
> 5-1/2"
> > dia. wheels, I had to make up a "special" boring
> bar
> > type tool as the crossfeed does not retract the
> cross
> > slide far enough to use a normal lathe tool bit. 
> If
> > you do decide to go with the larger scale, I would
> > suggest that you find a friendly club member who
> has a
> > lathe with a larger swing, but I think that your
> lathe
> > is large enough to do all the rest of the work.
> >
> > Al Messer
> >
> > --- Jem Harrison <Jem.Harrison@xxxxxxxxxxxxxxx>
> wrote:
> >
> >> Allen,
> >>
> >> The Myford ML10 has a swing (I hope I have chosen
> >> the corect term) of 3¼
> >> inches, therefore the maximum size of wheel
> casting
> >> it could cope with would
> >> be a tadge under 6½ inches.
> >>
> >> Best wishes,
> >>
> >> Jem
> >> ----- Original Message ----- 
> >> From: "Allen Messer" <al_messer@xxxxxxxxx>
> >> To: <modeleng@xxxxxxxxxxxxx>
> >> Sent: Wednesday, September 28, 2005 10:44 PM
> >> Subject: [modeleng] Re: 3½ versus 5
> >>
> >>
> >> > Jem, I may have missed it, but what is the
> >> capacity of
> >> > your lathe?
> >> >
> >> > Al Messer
> >> >
> >> > --- Jem Harrison <Jem.Harrison@xxxxxxxxxxxxxxx>
> >> wrote:
> >> >
> >> >> Thanks Jeff,
> >> >>
> >> >> Your scenario is one that I can see that I
> would
> >> >> have to follow.  My ML10
> >> >> would be hard pushed to fit a 6ft driver in
> >> 5-inch
> >> >> gauge!
> >> >>
> >> >> Thanks,
> >> >>
> >> >> Jem
> >> >> ----- Original Message ----- 
> >> >> From: "Jeff Dayman" <jeffdayman@xxxxxxxxxxxx>
> >> >> To: <modeleng@xxxxxxxxxxxxx>
> >> >> Sent: Monday, September 26, 2005 1:27 PM
> >> >> Subject: [modeleng] Re: [modeleng] 3½ versus 5
> >> >>
> >> >>
> >> >> > Hi Jem,
> >> >> >
> >> >> > Unless you like watchmaking, bigger models
> are
> >> >> easier to build. Smaller
> >> >> > parts are generally harder to hold while
> >> putting
> >> >> on the high cutting
> >> >> > forces
> >> >> > needed in metal work. If you have a few
> parts
> >> >> beyond the size of your
> >> >> > equipment, chances are local industries or
> >> other
> >> >> club members will have
> >> >> > larger ones. I've found that if you show up
> to
> >> the
> >> >> back door of a machine
> >> >> > shop at lunch time with a tray of coffees,
> and
> >> >> tell the guys what you're
> >> >> > up
> >> >> > to, they're generally glad to help, as long
> as
> >> >> you're not in a rush. When
> >> >> > I
> >> >> > was in the toolroom, training, we loved jobs
> >> like
> >> >> that for Friday
> >> >> > afternoons.
> >> >> >
> >> >> > Good luck, Jeff Dayman Waterloo Ontario
> Canada
> >> >> >
> >> >> >
> >> >> >
> >> >> > ----- Original Message -----
> >> >> > From: "Jem Harrison"
> >> >> <Jem.Harrison@xxxxxxxxxxxxxxx>
> >> >> > To: <modeleng@xxxxxxxxxxxxx>
> >> >> > Sent: Monday, September 26, 2005 6:16 AM
> >> >> > Subject: [modeleng] 3½ versus 5
> >> >> >
> >> >> >
> >> >> >> Here is another 'new' topic, on which I
> would
> >> >> appreciate your opinions.
> >> >> >> I am a relative newcomer to model
> engineering.
> >>  I
> >> >> have no engineering
> >> >> > background.  In the distant past I have
> >> >> scratchbuilt models in 0 gauge
> >> >> > (2-rail electric) and some wagons in Gauge
> 1.
> >> I
> >> >> have a Myford ML10 in
> >> >> > reasonable condition and a small bench
> pillar
> >> >> drill (rough!).  For the
> >> >> > best
> >> >> > part of the last three years I have been
> doing
> >> >> some restoration work on a
> >> >> > Dore Westbury Mk.1: surgery on the motor,
> >> fitting
> >> >> new lead screws and
> >> >> > nuts,
> >> >> > devising different ways to attach the
> handles
> >> top
> >> >> the lead screws, making
> >> >> > a
> >> >> > drawbar, making a machine vice kit.  It has
> >> been a
> >> >> long learning exercise!
> >> >> > I now have some digital read-out bars that I
> >> have
> >> >> not succeeded yet in
> >> >> > fitting....I do wonder if these are really
> >> worth
> >> >> the hassle.
> >> >> >>
> >> >> >> I want to get started on a locomotive. 
> Until
> >> >> recently I reckoned that I
> >> >> > would tackle something in 3½-inch gauge, but
> >> the
> >> >> vast majority of the
> >> >> > received wisdom has advised against this
> size.
> >> >> So, what I would be
> >> >> > interested to read on this discussion group
> is
> >> >> your views for and against
> >> >> > 3½-inch and 5-inch gauge, oh and while we
> are
> >> >> about it, we could add
> >> >> > 2½-inch
> >> >> > gauge.
> >> >> >>
> >> >> >> Best wishes,
> >> >> >>
> >> >> >> Jem Harrison
> >> >> >> Basildon
> >> >> >>
> >> >> >>
> >> >> >> MODEL ENGINEERING DISCUSSION LIST.
> >> >> >>
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> >> email
> >> >> to,
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> word
> 
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