I use 3/16" rubber sheet from McMaster Carr. Cost was around 8 bux for a 1 foot square sheet as I recall. I have not had one fail yet (about 6 years now) but I have used them in 2 stroke applications, all the way up to a 2.10 cu in. The typical weight of one of these is around 6-8 grams. I also intend to use the technique for my new ZDZ40 F3A<br>
<br>
Matt<br>
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-----Original Message-----<br>
From: Ron Van Putte <vanputte@cox.net><br>
To: NSRCA Mailing List <nsrca-discussion@lists.nsrca.org><br>
Sent: Wed, 8 Aug 2007 10:08 pm<br>
Subject: Re: [NSRCA-discussion] Nose-Rings: O-ring replacement forCHnosering?<br>
<br>
<div id=AOLMsgPart_3_55bb7be4-4d02-466c-9654-6d2f489591d8>What a great idea! It appeals to my inner Scot. My mother was born in Scotland.
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<div>What's the thickness of the rubber sheet stock?
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<div>Ron Van Putte</div>
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<div>On Aug 8, 2007, at 9:33 PM, <A href="mailto:rcmaster199@aol.com">rcmaster199@aol.com</A> wrote:</div>
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<div>For those inclined to get "primitive" as Jim put it, here's what has worked for me:</div>
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<div>I use a tool designed for circle cuts mounted in a drill press, to cut the ID in rubber sheet stock. I measure the engine's front block and then adjust the tool to give me the exact cut. </div>
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<div>The sheet is then cut in the form of a nose ring in my band saw, leaving about 3/16" edge all around, and "ears" at the mounting locations. Takes about 15 minutes of work and voila, the exact fit one needs and the whole thing is made of rubber<br>
<br>
MattK<br>
<br>
<br>
-----Original Message-----<br>
From: Mike Hester <<A href="mailto:kerlock@comcast.net">kerlock@comcast.net</A>><br>
To: NSRCA Mailing List <<A href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</A>><br>
Sent: Wed, 8 Aug 2007 11:43 am<br>
Subject: Re: [NSRCA-discussion] Nose-Rings: O-ring replacement forCHnosering?<br>
<br>
</div>
<div id=AOLMsgPart_3_001f4450-7b5a-4371-853e-cca79c3a820e>
<div><FONT face=Arial size=2>Well after Vaughn told me the same thing, I mic-ed the 2 motors I had and they are indeed different, that's why there is no standard O ring that makes it all happy. So, a few minutes with a dremel and a lot of patience seems to be the answer. Just keep it round =)</FONT></div>
<div><FONT face=Arial size=2></FONT> </div>
<div><FONT face=Arial size=2>On that same note, I made the mistake early on of using the nose ring as-is. It may as well had been hard mounted. Everything on the plane shook loose....screws, adjusters, rattled the antenna out of the tube, you name it. Cost me a set of servos before I had that conversation and fixed it.</FONT></div>
<div><FONT face=Arial size=2></FONT> </div>
<div><FONT face=Arial size=2>"Don't be that guy"....LOL </FONT></div>
<div><FONT face=Arial size=2></FONT> </div>
<div><FONT face=Arial size=2>-Mike</FONT></div>
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<div style="FONT: 10pt arial">----- Original Message ----- </div>
<div style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B> <A title=jim.woodward@baesystems.com href="mailto:jim.woodward@baesystems.com">Woodward, Jim</A> </div>
<div style="FONT: 10pt arial"><B>To:</B> <A title=nsrca-discussion@lists.nsrca.org href="mailto:nsrca-discussion@lists.nsrca.org">NSRCA Mailing List</A> </div>
<div style="FONT: 10pt arial"><B>Sent:</B> Wednesday, August 08, 2007 12:36 PM</div>
<div style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] Nose-Rings: O-ring replacement forCHnosering?</div>
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</div>
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<div class=MsoNormal><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Thanks Mike,</SPAN></FONT></div>
<div class=MsoNormal><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"> </SPAN></FONT></div>
<div class=MsoNormal><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">I can get primitive on the O-ring </SPAN></FONT><FONT face=Wingdings color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Wingdings">J</SPAN></FONT><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"> I was hoping for a McMaster Carr P/N. If I find one, I think it would be a good idea for Central to supply two sizes of O-rings with unit to ensure it fits the motors.</SPAN></FONT></div>
<div class=MsoNormal><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"> </SPAN></FONT></div>
<div class=MsoNormal><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Thanks,</SPAN></FONT></div>
<div class=MsoNormal><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Jim</SPAN></FONT><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"></SPAN></FONT></div>
<div class=MsoNormal><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"> </SPAN></FONT></div>
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<div class=MsoNormal><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt"> </SPAN></FONT></div>
<div class=MsoNormal><B><FONT face=Tahoma size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">From:</SPAN></FONT></B><FONT face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"> <A href="mailto:nsrca-discussion-bounces@lists.nsrca.org">nsrca-discussion-bounces@lists.nsrca.org</A> [<A href="mailto:nsrca-discussion-bounces@lists.nsrca.org?">mailto:nsrca-discussion-bounces@lists.nsrca.org</A>] <B><SPAN style="FONT-WEIGHT: bold">On Behalf Of </SPAN></B>Mike Hester<br>
<B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Wednesday, August 08, 2007 12:32 PM<br>
<B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> NSRCA Mailing List<br>
<B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: [NSRCA-discussion] Nose-Rings: O-ring replacement for CHnosering?</SPAN></FONT></div>
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<div class=MsoNormal><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt"> </SPAN></FONT></div>
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<div class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">After much discussion, trial and error, the "fix" to this is to gently remove material from the O ring with a dremel and large drum sander, until it is a slip fit. You don't want it sloppy, but it should slide on and off without having to force it. Install with some lithium grease and you're all set! I've had to do a ton like this.</SPAN></FONT></div>
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<div class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">-Mike</SPAN></FONT></div>
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<div class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">----- Original Message ----- </SPAN></FONT></div>
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<div class=MsoNormal style="BACKGROUND: #e4e4e4"><B><FONT face=Arial size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Arial">From:</SPAN></FONT></B><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> <A title=jim.woodward@baesystems.com href="mailto:jim.woodward@baesystems.com">Woodward, Jim</A> </SPAN></FONT></div>
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<div class=MsoNormal><B><FONT face=Arial size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Arial">To:</SPAN></FONT></B><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> <A title=nsrca-discussion@lists.nsrca.org href="mailto:nsrca-discussion@lists.nsrca.org">NSRCA Mailing List</A> </SPAN></FONT></div>
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<div>
<div class=MsoNormal><B><FONT face=Arial size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Arial">Sent:</SPAN></FONT></B><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> Wednesday, August 08, 2007 12:26 PM</SPAN></FONT></div>
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<div class=MsoNormal><B><FONT face=Arial size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Arial">Subject:</SPAN></FONT></B><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> [NSRCA-discussion] Nose-Rings: O-ring replacement for CH nosering?</SPAN></FONT></div>
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<div class=MsoNormal><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt"> </SPAN></FONT></div>
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<div class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Hi Guys,</SPAN></FONT></div>
<div class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">A while back Clayton Foster was making the CFE nose-rings and they always seemed to fit perfectly – snug but allows the engine to still rock back and forth. I understand now that he is no longer making them, and that the Central Hobbies Nose-ring was supposed to be a replacement for it. I have had several of the CH nose-rings and they fit so tightly as to form nearly a welded lock of the rubber to the motor. I’m not opposed to making my own nose-rings, but I actually like the idea of being able to purchase something and use it once in a while too. </SPAN></FONT></div>
<div class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Has anyone found a P/N or different size O-ring to make these units fit the YS correctly? After just speaking to Vaughn, he felt that the YS dimensional variances were too much to deal with so they shot for the middle ground. If anyone has spec’d or tried a new o-ring for this device and could pass it along that would be great.</SPAN></FONT></div>
<div class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Thanks,</SPAN></FONT></div>
<div class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Jim</SPAN></FONT></div>
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