Mail Archives: geda-user/2014/12/17/15:19:42
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looking forward to it!
Thanks
On Wed, Dec 17, 2014 at 1:20 PM, Ed Simmons <ed AT estechnical DOT co DOT uk> wrote:
>
> Full steps clatter like a typewriter! They start sounding smoother at
> maybe 8-16 microsteps per step. On most CNC machines with steppers, we aim
> for 32 step micro-stepping, but this has an added consequence of requiring
> vastly higher frequency step signals.
>
> Have fun!
>
>
> On 17/12/14 18:10, Rob Butts wrote:
>
> 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
>>
>>
>
> --
> Ed Simmonsed AT estechnical DOT co DOT ukwww DOT estechnical DOT co DOT uk
>
>
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<div dir=3D"ltr"><div>looking forward to it!<br><br></div>Thanks<br></div><=
div class=3D"gmail_extra"><br><div class=3D"gmail_quote">On Wed, Dec 17, 20=
14 at 1:20 PM, Ed Simmons <span dir=3D"ltr"><<a href=3D"mailto:ed AT estech=
nical.co.uk" target=3D"_blank">ed AT estechnical DOT co DOT uk</a>></span> wrote:<b=
lockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px =
#ccc solid;padding-left:1ex">
=20
=20
=20
<div bgcolor=3D"#FFFFFF" text=3D"#000000">
<div>Full steps clatter like a typewriter!
They start sounding smoother at maybe 8-16 microsteps per step. On
most CNC machines with steppers, we aim for 32 step
micro-stepping, but this has an added consequence of requiring
vastly higher frequency step signals.<br>
<br>
Have fun!<div><div class=3D"h5"><br>
<br>
On 17/12/14 18:10, Rob Butts wrote:<br>
</div></div></div><div><div class=3D"h5">
<blockquote type=3D"cite">
<div dir=3D"ltr">
<div>I'm driving it with a microchip pic ~ no, I'm not
micro-stepping ~ I'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, Dec 17, 2014 at 12:55 PM, Ed
Simmons <span dir=3D"ltr"><<a href=3D"mailto:ed AT estechnical DOT co=
.uk" target=3D"_blank">ed AT estechnical DOT co DOT uk</a>></span>
wrote:
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;bord=
er-left:1px #ccc solid;padding-left:1ex">
<div>
<div>On 17/12/14 17:21, Rob Butts wrote:<br>
> I'm using this motor to turn a shaft.=C2=A0 I have=
all
of the inputs in a<br>
> static state with the clock signal turning the
motor.<br>
><br>
> With the motor not connected it is silent as it
turns.=C2=A0 When I mount<br>
> it on a metal block so that it meshes with the gear
of the shaft it<br>
> puts out a rattle as it turns,.<br>
><br>
> I found that if you press down on the stepper it
doesn't chatter so<br>
> much.=C2=A0 We put a neoprene gasket under it which
helped quiet it but it<br>
> was still a noticeable chatter.<br>
><br>
> We then mounted a plate on top with a neoprene
gasket lightly<br>
> compressing the stepper.=C2=A0 This quieted it quite a
bit.<br>
><br>
> Is this a common issue with steppers or am I not
doing something<br>
> correctly?=C2=A0 Lastly, does anyone see a problem
slightly compressing it?<br>
><br>
> Thanks<br>
</div>
</div>
HI Rob,<br>
<br>
What sort of drivers are you using? Are you micro-stepping?<br>
<span><font color=3D"#888888"><br>
Ed<br>
<br>
--<br>
Ed Simmons<br>
<a href=3D"mailto:ed AT estechnical DOT co DOT uk" target=3D"_blank">e=
d 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>
</blockquote>
<br>
<br>
<pre cols=3D"72">--=20
Ed Simmons
<a href=3D"mailto:ed AT estechnical DOT co DOT uk" target=3D"_blank">ed AT estechnical DOT co=
.uk</a>
<a href=3D"http://www.estechnical.co.uk" target=3D"_blank">www.estechnical.=
co.uk</a></pre>
</div></div></div>
</blockquote></div></div>
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