[TheForge] LG Mechanical to Air conversion

Larry [email protected]
Fri Jun 7 18:28:01 2002


Thanks for the advice.  The Austin Community College has one or more of these up
there.  I think I'll drop in and may-be take some pictures.  Mostly I was
concerned about the control valves.  As to the size/volume of air required, this
is some concern, but I to think I will get more work with less air due to the
volume of the bore.  Sort of like those pillows they use to lift a car.  The
speed may be limited, but then I'm not used to a hammer yet so that may be
good.  I'll post pictures when it starts to come together.

Larry

Shannell Sugrue wrote:

> Dont rule out a 4" cyl entirely, with a 1" rod its equiv to a 3 1/2" bore in
> area, and you could run this size at quite low pressures I'd imagine
> (50-60psi), so 25cfm or so might cut it. Mabey Ive just got "bore envy" with
> my 2" :)
>
> ----- Original Message -----
> From: "Demon Buddha" <[email protected]>
> To: <[email protected]>
> Sent: 31 May, 2002 9:53 AM
> Subject: Re: [TheForge] LG Mechanical to Air conversion
>
> > A couple of things.  One, a four inch cylinder is going to want a goodly
> > volume of air.  Next, the alignment of the bore with the ram guides will
> > me critical to the life of the cylinder.  On the plus side, you have way
> > more cylinder than you need, so it should hold up better in general and
> > specifically if there is some slight misalignment.
> >
> > Just some things to consider.  I think the conversion would be a cool
> > thing.  I'm not a big fan of the Little Giants.  I've used a 50# quite
> > a lot for several months and was not impressed very favorably, but that
> > is just my personal tastes.  The clutch was supposedly well tuned, but
> > I found the control to be lacking.  I also do not at all care for the
> > design of the ways the ram rides in.  I was told that the "new style"
> > LGs have a different arrangement, but don't know if this is true.  I
> > have Doug Freund's book, but alas it is in Scottsdale with the rest
> > of my life. :)
> >
> > From my experiences with a 50# Giant, I would think a well thought out
> > and executed conversion to air would be a great idea.
> >
> > Best luck to you.
> >
> > -Andy
> >