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	Wed, 17 Dec 2014 10:10:57 -0800 (PST)
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Date:	Wed, 17 Dec 2014 13:10:57 -0500
Message-ID:	<CALSZ9go96Ed0jdZ8gN+G83ioGU-uYf77mo0hXmZmQ-s8f+XpfA@mail.gmail.com>
Subject:	Re: [geda-user] Nema 23 stepper motors
From:	Rob Butts <r DOT butts2 AT gmail DOT com>
To:	geda-user AT delorie DOT com
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I'm driving it with a microchip pic ~ no, I'm not micro-stepping ~ I'll
have to try that

Thanks guys

On Wed, Dec 17, 2014 at 12:55 PM, Ed Simmons <ed AT estechnical DOT co DOT uk> wrote:
>
> On 17/12/14 17:21, Rob Butts wrote:
> > I'm using this motor to turn a shaft.  I have all of the inputs in a
> > static state with the clock signal turning the motor.
> >
> > With the motor not connected it is silent as it turns.  When I mount
> > it on a metal block so that it meshes with the gear of the shaft it
> > puts out a rattle as it turns,.
> >
> > I found that if you press down on the stepper it doesn't chatter so
> > much.  We put a neoprene gasket under it which helped quiet it but it
> > was still a noticeable chatter.
> >
> > We then mounted a plate on top with a neoprene gasket lightly
> > compressing the stepper.  This quieted it quite a bit.
> >
> > Is this a common issue with steppers or am I not doing something
> > correctly?  Lastly, does anyone see a problem slightly compressing it?
> >
> > Thanks
> HI Rob,
>
> What sort of drivers are you using? Are you micro-stepping?
>
> Ed
>
> --
> Ed Simmons
> ed AT estechnical DOT co DOT uk
> www.estechnical.co.uk
>
>

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<div dir=3D"ltr"><div>I&#39;m driving it with a microchip pic ~ no, I&#39;m=
 not micro-stepping ~ I&#39;ll have to try that<br><br></div>Thanks guys<br=
></div><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">On Wed, De=
c 17, 2014 at 12:55 PM, Ed Simmons <span dir=3D"ltr">&lt;<a href=3D"mailto:=
ed AT estechnical DOT co DOT uk" target=3D"_blank">ed AT estechnical DOT co DOT uk</a>&gt;</span>=
 wrote:<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-=
left:1px #ccc solid;padding-left:1ex"><div class=3D"HOEnZb"><div class=3D"h=
5">On 17/12/14 17:21, Rob Butts wrote:<br>
&gt; I&#39;m using this motor to turn a shaft.=C2=A0 I have all of the inpu=
ts in a<br>
&gt; static state with the clock signal turning the motor.<br>
&gt;<br>
&gt; With the motor not connected it is silent as it turns.=C2=A0 When I mo=
unt<br>
&gt; it on a metal block so that it meshes with the gear of the shaft it<br=
>
&gt; puts out a rattle as it turns,.<br>
&gt;<br>
&gt; I found that if you press down on the stepper it doesn&#39;t chatter s=
o<br>
&gt; much.=C2=A0 We put a neoprene gasket under it which helped quiet it bu=
t it<br>
&gt; was still a noticeable chatter.<br>
&gt;<br>
&gt; We then mounted a plate on top with a neoprene gasket lightly<br>
&gt; compressing the stepper.=C2=A0 This quieted it quite a bit.<br>
&gt;<br>
&gt; Is this a common issue with steppers or am I not doing something<br>
&gt; correctly?=C2=A0 Lastly, does anyone see a problem slightly compressin=
g it?<br>
&gt;<br>
&gt; Thanks<br>
</div></div>HI Rob,<br>
<br>
What sort of drivers are you using? Are you micro-stepping?<br>
<span class=3D"HOEnZb"><font color=3D"#888888"><br>
Ed<br>
<br>
--<br>
Ed Simmons<br>
<a href=3D"mailto:ed AT estechnical DOT co DOT uk">ed AT estechnical DOT co DOT uk</a><br>
<a href=3D"http://www.estechnical.co.uk" target=3D"_blank">www.estechnical.=
co.uk</a><br>
<br>
</font></span></blockquote></div></div>

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