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 bearing > Date: 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. > > > > > _______________________________________________ > This List is provided by the C&C Photo Album > http://www.cncphotoalbum.com > CnC-List@cnc-list.com > > -- Jim Watts Paradigm Shift C&C 35 Mk III Victoria, BC
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