well, I don't know exactly how much play. I just know there is play. Yea I
can lift the rudder a 1/4". I could also go to 2- 3/16" thick delrin washers
if I was worried. Or I could just have 2 of each made and play around with it.
At the bottom, it could actually have been play at the top and when I was
pulling on the rudder, the point where the rudder exits the hull could have
been a fulcrum point and only appeared to be sloppy. I'll have to take some
careful measures it seems... Danny
---------- Original Message ----------
From: Joel Aronson <joel.aron...@gmail.com>
To: "cnc-list@cnc-list.com" <cnc-list@cnc-list.com>
Subject: Re: Stus-List Rudder bearing
Date: Tue, 12 Nov 2013 13:45:24 -0500
Dan, How much play is there? �Looks like a pretty tight fit without a
bearing. �Can you lift up the rudder 1/4 inch to compensate for the SS
washer?� Joel
On Tue, Nov 12, 2013 at 1:40 PM, Jim Watts <paradigmat...@gmail.com> wrote:
3 5/8" Delrin rod could be hard to come by, 4" is probably the closest you'll
find (even at McMaster-Carr). But it does machine beautifully so you could turn
it to size on a lathe. My rudder is essentially the same construction except it
has a knurled nut on top that rides on the Delrin instead of a pin.
On 12 November 2013 10:31, djhaug...@juno.com <djhaug...@juno.com> wrote:I'm
going to have to look closer but, all I could really see was the fiberglass
tube with an aluminum flange at the top and the rudder basically hangs by a pin
from there. �2 1/2" thick teflon looking "washers" keep the pin off the
aluminum and pretty much ride on each other to reduce friction. �I was
thinking of just adding an SS washer to try and distribute the point loads from
the pin. �I'm thinking a should just replace those 2 teflon looking
washers as long as I have it apart. �But, honestly, I think they would
work just fine. �I think the idea is just to keep thinks nice and
slippery up at the top. �Although, a nice tight fit would keep it from
moving about. �Maybe I should take some good measurements with a caliper
and have something machined for the top and the bottom?�It's obvious
this rudder has been removed a number of times. �I'm wondering whether
or not it would get dropped every few years to add anti fouling between the
hull and the rudder. ��So, maybe I get 1'-0" length of 3-5/8"
delrin rod and have all those pieces fabricated at a machine shop?
�Then,slap it all back together? ��I keep thinking I
should improve upon what is there just because I have it all
apart.��
---------- Original Message ----------
From: "Dennis C." <capt...@yahoo.com>
To: "cnc-list@cnc-list.com" <cnc-list@cnc-list.com>
Subject: Re: Stus-List Rudder bearingDate: Tue, 12 Nov 2013 09:50:49 -0800
(PST)
I had a new upper rudder bearing made for Touche' from 1/2 inch thick
Delrin.� Any decent machinist should be able to do it.� The next
one I have made will be from 1 inch or 2 pieces of 1/2 inch to increase the
bearing surface.
Dennis C.
Touche' 35-1 #83
Mandeville, LA
�� From: Jim Watts <paradigmat...@gmail.com>
To: 1 CnC List <cnc-list@cnc-list.com>
Sent: Monday, November 11, 2013 4:38 PM
Subject: Re: Stus-List Rudder bearing
Those bearing discs are probably Delrin, aka Acetal. I think Dennis C. and/or
Joe D.B. scored some made from PEEK or some such...you can make them yourself
from sheet stock or have a machine shop mill them
out.��_______________________________________________
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Jim Watts
Paradigm Shift
C&C 35 Mk III
Victoria, BC
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301 541 8551
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