[TheForge] Re: OT Threads ?

[Ralph Sproul]

Yeah, That mill and I have been spending some time together lately.  :-)

One thing I learned from a couple of 80+ year old brothers who were not only
brothers, but farmers and joint operators of a sawmill they had in the back
of their barnyard.  They used a six cylinder motor in a truck cut off in
front of the rear spring shackles - then ran the driveshaft right to the
mill husk (which was metal).  They found they kept loosing bearings on the
direct drive all mounted in line with steel contact and no cushion.

When they make large pulleys with a set of four belts in bewteein - it made
for much easier jack shaft to run the mill even though the pulleys were
about the same size - the belts provided cushion from the blade shaft
vibrating down thru the bearings on transferring the drive up the driveshaft
and on to the transmission.

They used a centrifugal governor to run this as the motor needed the
throttle held open during work periods milling. They also put rubber
cushions under the mill husk as well.

Ralph

-----Original Message-----
From: theforge-bounces at mailman.qth.net
[mailto:theforge-bounces at mailman.qth.net] On Behalf Of Mike Spencer
Sent: Tuesday, February 14, 2006 6:00 PM
To: theforge at mailman.qth.net
Subject: [TheForge] Re: OT Threads ?


Ralph quoth:

> It was a marathon weekend here.  I line bored the lower rod section
> for the Nazel...I sent you pictures...

I know, I know, Spring is coming but since nothing else is green just
now you thought you'd make me green with envy. :-) Nice to have the
mill.  Since the A&O had a heavy, Babbitt-clad bronze bearing, I
didn't mess with anything like that.

> Bummer on the motor not having power enough for the hammer
> though....Are you thinking of going electric for the A&O now? Or going
> to try a larger engine drive?

First some tinkering and tweaking so see if some little fix will push
the effective power over the edge to working right.  If not, then a
bigger engine.  I have a perfectly good front half of a 1987 F-150 6
cyl. 4x4.  I think I can tuck the rear axle under the back of the cab
and have the rear drive shaft project out over it to a coupling.
Still vague on the details but that's Plan B.


- Mike

-- 
Michael Spencer                  Nova Scotia, Canada       .~. 
                                                           /V\ 
mspencer at tallships.ca                                     /( )\
http://home.tallships.ca/mspencer/                        ^^-^^
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