[R-390] R-392 Mech.Parts Question

Fri, 25 Jan 2002 22:54:33 -0600

small parts company stocks a selection of Oldham couplers (
www.smallparts.com) Jon AB9AH
----- Original Message -----
From: "Paul H. Anderson" <[email protected]>
To: "Barry Hauser" <[email protected]>
Cc: <[email protected]>
Sent: Friday, January 25, 2002 1:17 PM
Subject: Re: [R-390] R-392 Mech.Parts Question


> On Fri, 25 Jan 2002, Barry Hauser wrote:
>
> > Harry:
> >
> > As Mike pointed out, that is an Oldham coupler -- excellent photo.
> >
>
> I agree - that is a great shot!
>
> It occurs to me that a trivial fix for that is to go to a hobby shop, get
> a small length of square bar stock of appropriate dimension, cut to fit,
> and put a rubber band around the thing (or tape or glue or wire wrap) to
> hold the bar in.  The oldham coupler, as someone described, stays
> inserted, and a bar wouldn't.  But a bar would get the job done a lot of
> the time.  Another approach is to use two pieces of stock - a square piece
> to lock the two couplers together, and a tubular piece to slip over the
> joint - it would be held in place between the screws of the opposing
> couplers.
>
> I took his excellent picture and put some notes on it.  You can see it at:
>
> <http://www.pdq.com/boatanchors/r-392/R-392-Bandwidth-Coupling.jpg>
>
> I personally would favor that over epoxy or other glues that might gum
> things up otherwise.
>
> Paul
>
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