X-Authentication-Warning: delorie.com: mail set sender to geda-user-bounces using -f X-Recipient: geda-user AT delorie DOT com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=wEBPKAJajTrVUn1g8VV6tQIPXT5oX3Ro7TYmlgPbbXc=; b=jB0X1auwcXHV092N5NNCL35kgKjmuW6O3ylzV4Bnds845rv1BqE2GZ5mKvuKwmUKDw R3HHrVLG2Ga1r4S6PGkmXZkox8gJ38WFo8RaosaMFIQ7GLUrHWz8aR95Cj8X/pznTYSJ HpJ20PutBJnGaU8jPyzivEED6t83S9i4d/cqUrYwQ7C1dt967Ux6zkPuTQSDul+40aNO 7yvPbvPlMjU6klM1mxfift9a9Fa3SJPBq3O4phOyt8rqj6M0iee6e1R3d9ukecOs50xD PtWwan0fno12WkIdEleJfkPV6OeZ3Y0sVQ0ulZB5yy4Zv3/wN/K5IYZF1z/hQDDptnEq PAKw== MIME-Version: 1.0 X-Received: by 10.52.66.200 with SMTP id h8mr22190492vdt.97.1418839857987; Wed, 17 Dec 2014 10:10:57 -0800 (PST) In-Reply-To: <5491C394.8090303@estechnical.co.uk> References: <5491C394 DOT 8090303 AT estechnical DOT co DOT uk> Date: Wed, 17 Dec 2014 13:10:57 -0500 Message-ID: Subject: Re: [geda-user] Nema 23 stepper motors From: Rob Butts To: geda-user AT delorie DOT com Content-Type: multipart/alternative; boundary=20cf307ac74dba87dc050a6d656b Reply-To: geda-user AT delorie DOT com Errors-To: nobody AT delorie DOT com X-Mailing-List: geda-user AT delorie DOT com X-Unsubscribes-To: listserv AT delorie DOT com Precedence: bulk --20cf307ac74dba87dc050a6d656b Content-Type: text/plain; charset=UTF-8 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 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 > > --20cf307ac74dba87dc050a6d656b Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable

I'm driving it with a microchip pic ~ no, I'm= not micro-stepping ~ I'll have to try that

Thanks guys

On Wed, De= c 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.=C2=A0 I have all of the inpu= ts in a
> static state with the clock signal turning the motor.
>
> With the motor not connected it is silent as it turns.=C2=A0 When I mo= unt
> 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 s= o
> much.=C2=A0 We put a neoprene gasket under it which helped quiet it bu= t it
> was still a noticeable chatter.
>
> We then mounted a plate on top with a neoprene gasket lightly
> compressing the stepper.=C2=A0 This quieted it quite a bit.
>
> Is this a common issue with steppers or am I not doing something
> correctly?=C2=A0 Lastly, does anyone see a problem slightly compressin= g 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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