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 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 > > _______________________________________________ > This List is provided by the C&C Photo Album > http://www.cncphotoalbum.com > CnC-List@cnc-list.com > > -- Joel 301 541 8551
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