[Public-List] Rudder Shoe Casting Shrinkage Issues

[James Allocco]

Peter,

Plaese and my name to the Gudgeon and Pintles List .  I am already on the
Rudder Shoe list. Thanks

Jamesallocco at gmail.com
On Tue, Jul 17, 2012 at 12:43 AM, Peter McEvoy <peter.t.mcevoy at gmail.com>wrote:

> Thanks Gordon and George for chiming in about the rudder shoe casting and
> whether or not shrinkage will be an issue for us.
>
> To keep it short, I really don't think it will be an issue. Shrinkage of 2%
> would indeed matter for an auto part, as Gordon cautioned. But for this
> situation, it really just needs to fit snugly on the butt of the keel. From
> my reading, I understand that the shoe is placed on the keel with an
> intermediary layer of epoxy or adhesive, and then drilled into the keel-
> this sounds to me like there is some wiggle-room. Even with maximum
> shrinkage, we'd only lose 3/32" in length and 3/64" in width. I would call
> that negligible.
>
> Then again, I don't know how picky people are. Anybody whose replaced a
> shoe- do you think these numbers will make a difference?
>
> We could make the mold bigger if this is necessary, it's just more work
> (and mold-material cost).  I wish it were as simple as Kris suggested-  to
> heat the piece to increase it's size before taking the mold- but alas, the
> mold material (urethane rubber) is heat sensitive and also cures over a
> span of 24 hours or so, which would not make the method practical. We could
> do it if we need to, but let's see what hands-on-experienced folks think
> first.
>
> UPDATED LIST:
>
> Rudder Shoe:
> Bill Ydel - wcydel at gmail.com
> Mike Lehman - sail_505 at hotmail.comJeff Fongemie - fongemie at gmail.com
> Brian Curry - brian_curry at hotmail.com
> David Mitchell - david at mitchellent.com
> Peter McEvoy - peter.t.mcevoy at gmail.com
> Jim Allocco - jamesallocco at gmail.com
> James Almond - okeebc at gmail.com
> Clayton Zimmerman - cb_zimmerman at hotmail.com
> Jon Budington - jon at globalprinting.com
> Jason ssteen - mpcylinderheads at gmail.com
> Don Lang - potatosailor at yahoo.com
> Gordon White - gewhite at crosslink.net
> Chuck Thomas - thomascwcj at bellsouth.net
> Mark Dietrich - mrkdtrch at yahoo.com
> Glenn Brooks - brooks.glenn at comcast.net
> Joseph Balderson - joebinc at gmail.com
> Jeff Fongemie - fongemie at gmail.com
> James McRury - jdmcrury at yahoo.co.uk
> Rick Leach - rixquik at yahoo.com
> Dana Shafie - Dana.shafie at verizon.net
> LAF "Avalon" #309 - reefed.main at gmail.com
> Bob Bounds - bobbounds at comcast.net
> (Chris Martin notcmartin at yahoo.com TENTATIVE)
>
> Gudgeon Sets:
> Glenn Brooks - brooks.glenn at comcast.net
> David Mitchell - david at mitchellent.com
> Michael Connolly #133 - crufone at comcast.net
> Peter McEvoy - peter.t.mcevoy at gmail.com
> James Almond - okeebc at gmail.com
> Clayton Zimmerman - cb_zimmerman at hotmail.com
> Jason ssteen - mpcylinderheads at gmail.com (Interested in the two part
> gudgeon and pintle version)
> Don Lang - potatosailor at yahoo.com
> Gordon White - gewhite at crosslink.net
> Chuck Thomas - thomascwcj at bellsouth.net
> Mark Dietrich - mrkdtrch at yahoo.com
> Joseph Balderson - joebinc at gmail.com
> Jeff Fongemie - fongemie at gmail.com
> James McRury - jdmcrury at yahoo.co.uk
> Rick Leach - rixquik at yahoo.com
> Dana Shafie - Dana.shafie at verizon.net
> LAF "Avalon" #309 - reefed.main at gmail.com
> Bob Bounds - bobbounds at comcast.net
> (Chris Martin notcmartin at yahoo.com TENTATIVE)
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