[GreenKeys] Woot! M15 has arrived - and I am already STUCK!

[drlegendre .]

Ah I see.. so because the parts train was in the wrong state, the selector
solenoid had to overcome more than just the spring force that normally
holds it open?

And this is why the current had to go so high, to develop enough force to
'displace' some cam / shaft that was interfering - acting as if there were
a much heavier spring holding off the selector armature?

In any event, it works - so assuming it holds together, it's down to
crossing Ts / dotting Is and adding all those good suggestions to the
software.

Speaking of which - the thing is missing some parts. The platen crank for
one, and several keycaps as well. Anybody have spares?

On Sun, Sep 6, 2015 at 3:20 PM, Jim Haynes <jhhaynes at earthlink.net> wrote:

> On Sun, 6 Sep 2015, drlegendre . wrote:
>
> Nope, didn't know that there were two sets of coils - or that I needed to
>> have the motor running to actually get the thing to pull in @ 60mA.
>> So I turned on the motor and now the damn thing just seems to work!
>> Awesome..
>>
>
> If you have the toggle switch, it is a holding magnet selector with
> two 92 ohm coils.  Which are usually somewhat rectangular in shape and
> covered with greenish material.  The pulling magnet selector has black
> cylindrical coils and no toggle switch and is 60ma only.
>
> What probably happened here, since the machine works with the motor
> running, is that you were doing your tests when the shaft happened to
> be in position where a cam was interfering with the selector armature.
> If you turn the motor by hand there will be positions where you can
> easily move the selector armature by hand, and others where it is locked
> in position.
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/greenkeys/attachments/20150906/317ca989/attachment.html>