RE: (ET) mower blades

["Elie, Larry (L.D.)" <lelie ford com>]

Steve, the two blade decks (E10M) use the same basic motor, and the blade 
dia is bigger.

Larry Elie


-----Original Message-----
From: SteveS [mailto:ssawtelle fcc net]
Sent: Monday, May 19, 2003 2:31 PM
To: elec-trak cosmos phy tufts edu
Subject: Re: (ET) mower blades


A quick check at McMaster doesn't show a reducing bushing (like for 
circular
saws) that go from 5/16 to anything. But for a test setup I could make a 
set
of three - just give me the diameter of the blade's mounting hole and your
address, Barry.

I'd be careful about making the blades longer - add up wobble, vibration,
etc and there could be trouble!

I seem to recall Eric Miller told me he was playing around with different
blades. As I remember, heavier blades added significant load to the mower
motors. Eric, you out there?

- SteveS



----- Original Message -----
From: "Barry Woods" <barry woods wright edu>
To: "Dave & Debbie Barden" <daveb seanet com>; <>
Sent: Monday, May 19, 2003 12:42 PM
Subject: Re: (ET) mower blades


> I will contact Gatorblade about doing this.  I would like for someone to
> double check my dimensions on the blade length and center hole, before I
do.
> Once again, I got 14 1/2" length with a 5/16" center hole.  It looks like
> there is a little clearance between the blades, so we might be able to go
up
> to 14 7/8".
>
>  If someone who has the ability to make a bushing (or could find a
> compatible one) would try a set of Gatorblades, we can well how well they
> work on an Elec-Trak deck before we commit to Gatorblade.
>
> If they work well, an alternative would be to have someone who has the
> ability to make a compatible bushing, like Timothy or Bill Gunn, see if 
> he
> would be willing to make and sell them to the group.  We could then use
> these bushings on stock Gatorblades.
>
> Barry
>
>
> ----- Original Message -----
> From: "Dave & Debbie Barden" <daveb seanet com>
> To: <Don Barry kirbycorp com>; <elec-trak cosmos phy tufts edu>;
> <barry woods wright edu>
> Sent: Monday, May 19, 2003 4:25 AM
> Subject: Re: (ET) mower blades
>
>
> > I would buy one or two sets.
> > dave
> > seattle
> >
> > > A better question: If we could get Gatorblade to make some blades for
> us, how
> > many of us
> > would particpate in a GROUP BUY of the blades??
> > >
> > > Count me in for 2 sets!
> > >
> > > Don Barry
> > > E-15
> > > Houston
> > >
> > > >>> Barry Woods <barry woods wright edu> 05/19/03 09:05AM >>>
> > > Has anyone had any luck in finding a set of high-lift blades to fit
the
> 42"
> > > front mount mowing deck?  The blades I ordered from  Bill Gunn have
very
> > > little lift and the appearance of the lawn after cutting, even with
> freshly
> > > sharpened blades, is disappointing.
> > >
> > > If my measurements are correct, the blades look to be 14 1/2" in
length
> and
> > > the center hole seems to be about 5/16".  I can find 14 1/2" blades
but
> > > nothing with a center hole that small.
> > >
> > > I tried mounting two blades on each motor, at right angles with the
> fiber
> > > washer between them. It did give somewhat better lift and did not 
> > > seem
> to
> > > draw anymore current, but no matter how hard I tighten them they will
> not
> > > stay perpendicular to each other and one will swing around and stop
> directly
> > > under the other after mowing  row or two and them the advantage of 
> > > two
> is
> > > lost.
> > >
> > > Gatorblades make a mulching blade that does not require a closed 
> > > deck.
> I
> > > figure this would stop some of the back pressure and not draw as much
> > > current as a regular mulching blade would  with the discharge chute
> blocked
> > > off.  I contacted them (gatorblade.com), but they said they do not
have
> that
> > > would fit.
> > >
> > > Any suggestions?
> > >
> > > Thanks,
> > > Barry
> > >
> > >
> > > E-15, Dayton, OH
> > >
> > > ----- Original Message -----
> > > From: "Christopher Zach" <czach computer org>
> > > To: <wombat dssinternet net>; <elec-trak cosmos phy tufts edu>; "Dave
&
> > > Debbie Barden" <daveb seanet com>
> > > Sent: Monday, May 19, 2003 9:44 AM
> > > Subject: Re: (ET) ryobi
> > >
> > >
> > > > Well, the Prizm's running voltage is 300 volts at 52 amp-hours. 
> > > > Thus
> the
> > > > batteries are run in two strings of 25, connected at the ends by
> > > contactors.
> > > >
> > > > Pretty high voltage. However the car can *move* since the batteries
> can
> > > > deliver 4C without sagging too much (200amp max draw at 300 volts 
> > > > is
a
> lot
> > > > of power).
> > > >
> > > > The Hawker Genesis batteries are probably the best in the business.
> They
> > > > will crank a V-8 motor without trouble, and I have used one on my
> garden
> > > > tractor for a year with no trouble. I think the max current you can
> draw
> > > on
> > > > them is something like a thousand amps. And they weigh only 24
pounds
> > > each.
> > > > Small, compact, high power.
> > > >
> > > > I am thinking of wiring up three of the old ones together and 
> > > > seeing
> how
> > > far
> > > > they take the Elec-trak (loaded with 6 volt batteries of course :-)
> Based
> > > on
> > > > my calculations, six of them (two strings of 3) should provide
enough
> > > power
> > > > to run the tractor for 30 minutes or so.
> > > >
> > > > Chris
> > > >
> > > >
> > > >
> > > > ----- Original Message -----
> > > > From: "Dave & Debbie Barden" <daveb seanet com>
> > > > To: <czach computer org>; <wombat dssinternet net>;
> > > > <elec-trak cosmos phy tufts edu>
> > > > Sent: Monday, May 19, 2003 2:26 AM
> > > > Subject: Re: (ET) ryobi
> > > >
> > > >
> > > > > 54?!  how did you wire them, what's the pack voltage?
> > > > >
> > > > > this wkend I just got a sears cordless mower running that I
rescued
> from
> > > > the
> > > > > dump.  The 24v charger came in the mail friday, the 12v sealed
batts
> > > > measured
> > > > > 2.2volts each!  but after 2 days on the charger came up to 12.7v.
I
> ran
> > > > it but
> > > > > only for a coupla seconds.  my charger did the same thing only 
> > > > > the
> green
> > > > > "ready" led ever lit up.  the red "charging" led never has come
on.
> > > > >
> > > > > there's not much grass here in my neighborhood here in town to
test
> it
> > > on
> > > > so
> > > > > I'll have to wait till next wkend when I bring it the farm.  I
plan
> to
> > > use
> > > > it
> > > > > for the lawn in close to the house and flower beds and the E-trac
on
> the
> > > > other
> > > > > 1/2 ac of lawn.
> > > > >
> > > > > dave
> > > > >
> > > > > > Could also be that after sitting for years the battery is fully
> > > > sulfated.
> > > > > >
> > > > > > If it's a 12 volt 26amp/hour battery then they cost $50 new 
> > > > > > from
> > > > > > www.surplusev.com. I just bought 54 of them for my electric 
> > > > > > car;
> > > really
> > > > nice
> > > > > > batteries. Have been thinking of trying to run the E20 with a
set
> of
> > > six
> > > > of
> > > > > > them :-)
> > > > > >
> > > > > > Chris
> > > > > >
> > > > > > ----- Original Message -----
> > > > > > From: "Neil Dennis" <wombat dssinternet net>
> > > > > > To: "Elec-trak" <elec-trak cosmos phy tufts edu>
> > > > > > Sent: Monday, May 19, 2003 8:42 AM
> > > > > > Subject: (ET) ryobi
> > > > > >
> > > > > >
> > > > > > > I've got probably the same model, the battery indicated
> "charged'
> > > > after
> > > > > > > running the charger for several hours but wouldn't start the
> mower.
> > > > If
> > > > > > > I remember, I found an open connection somewhere, after
fixing,
> the
> > > > > > > mower would run with the charger plugged in but about a 
> > > > > > > minute
> on
> > > the
> > > > > > > batt.
> > > > > > >
> > > > > > > It sits in my garage, too cheap to try and find a new batt,
> wonder
> > > > what
> > > > > > > they cost.
> > > > > > >
> > > > > > > wombat
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > >
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