[Elecraft] new KX-2 question

[Kevin Stover]

The solder is barely dry on the rig and people want to change the 
freaking knob....Without ever having used it.

Just amazing.

On 5/23/2016 10:00 PM, Ron D'Eau Claire wrote:
> Matt:
> What I was referring to is that with a flat the KX2 shaft is no longer
> round, so the set screws can pull the knob off center unless they are
> carefully positioned so they pull the knob against the round segment of the
> shaft.
>
> The shaft of the KX2 encoder is slightly smaller than the KX3 encoder -
> about 10 mils - so that can contribute a small amount eccentricity as well.
>
> 73, Ron AC7AC
>
> -----Original Message-----
> From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Matt
> Maguire
> Sent: Monday, May 23, 2016 4:52 PM
> To: Wes; elecraft at mailman.qth.net
> Subject: Re: [Elecraft] new KX-2 question
>
> Draw a circle on a piece of paper radius R, and mark it's centre. now draw a
> smaller circle inside radius r, which touches the bigger circle at one
> point, and mark it's centre. You'll see the distance between the centre
> points is (R - r). imagine the big circle is the hole in the VFO knob, and
> the little circle is the VFO shaft. The flat part of the VFO shaft is
> irrelevant, as the screw is adjusted to meet it wherever it sits.
> I hope this help explain how the knob will not be centred.
> 73, Matt VK2RQ
>
> Get Outlook for iOS
>
>
>
>
> On Mon, May 23, 2016 at 2:03 PM -0700, "Wes" <wes_n7ws at triconet.org> wrote:
>
>
>
>
>
>
>
>
>
>
> Leave one screw loose, drive the other one into the flat.  How could it not
> be centered?
>
>
> On 5/23/2016 12:31 PM, Ron D'Eau Claire wrote:
>> It will fit, although the KX2 knob is a press-on type with a flat on the
> encoder shaft while the K3 VFO B knob uses two set-screws on a round shaft.
>> Thanks to the flat, the K3 VFO B knob doesn't center perfectly.
>>
>> 73, Ron AC7AC
>>
>>
>>
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-- 
R. Kevin Stover
AC0H
ARRL
FISTS #11993
SKCC #215
NAQCC #3441



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