[TheForge] Fay & Egan Lathe manual

[Kevin Donahoe]

Bruce,

Thanks for the offer.  I actually remembered somebody being a math junky on
the list, figured if I fished a little, threw out the right bait, I'd get a
nibble ;)  If I'd thought hard enough about it I should have realized it was
you.  A generous offer.

Just looked up in my 16th ed. (1959)MH, it has 5 pages on noodling out
change gears.   Start by setting up the same gears on the spindle and
lead-screw and figuring out the "lathe screw constant".  Each of the gears
that came with the lathe have the number of teeth stamped on them.  There
appears to only be a dozen or so gears with two different diameter holes.
The MH says there should be gears from 24-100 with increments of 4 teeth, so
I may be pretty limited in options.  But the old lathe has enough paint on
it there isn't a seam visible on the cam and lock nut that changes the shaft
for the different gearing.

I keep you posted, Kevin

-----Original Message-----
From: theforge-bounces at mailman.qth.net
[mailto:theforge-bounces at mailman.qth.net]On Behalf Of Bruce Freeman
Sent: Wednesday, May 19, 2004 2:13 PM
To: theforge at mailman.qth.net
Subject: Re: [TheForge] Fay & Egan Lathe manual


Kevin,

Actually, some of us are mathmatically inclined and may be induced to
help "to calculate
the gear ratios/thread feeds".

I do applied math and word problems for kicks.  (E.g., the calculations
for the design of the eccentric pulley on the Grasshopper Treadle
Hammer.)

Someone more familiar with lathes might be better at this, but if you
were to describe the gearing sufficiently, I could probably put it up in
a spreadsheet.  It's more a matter of knowing what form you need for the
answer.

Bruce
NJ

>>> flyinpig at go-concepts.com 5/19/2004 1:56:17 PM >>>
All,

A little help please ;)  I bought a 1930's vintage 17x54 Fay & Egan
Lathe
last month at an auction.  I'm a ways from getting it setup, due to
total
shop reorganization.  But in perusing the 'net for a manual that would
explain how all the change gears work, I found  machinerymanuals.com.
I
placed an inquiry with them and they kindly responded that they did,
in
fact, have what I'm looking for... $200 + $7.50 s/h and they will send
a
photocopy with the original for a paltry additional $35, if I order it
at
the same time.

The only other Fay & Egan lathe info I've been able to find are wood
lathes,
shapers, planers, etc.  Anybody have any brilliant insights into
getting by
for less jack?  It might be a nice cold winter nights project to
calculate
the gear ratios/thread feeds, hahaha, arrgh!  A client of mine
mentioned the
Smithsonian might have such...?

Regards,

Kevin Donahoe
Flying Pig Forge
Morrow, OH 45152
flyinpig at go-concepts.com

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