Kirk Wallace wrote:
> I think Tormach has a fairly compelling argument for steppers here:
>
> http://www.tormach.com/document_library/TD30204_DesignAnalysis.pdf
>
> Starts on page seven, though I think the whole document is worth while.
Second that - I read the whole thing a few weeks ago. I
On Wed, 2008-02-13 at 17:37 +, [EMAIL PROTECTED] wrote:
> > If you really want to use steppers and scales together, thats fine. It
> > can be fun to explore new territory. EMC is the most flexible system
> > out there, and probably the only one that would let you experiment with
> > such a co
> If you really want to use steppers and scales together, thats fine. It
> can be fun to explore new territory. EMC is the most flexible system
> out there, and probably the only one that would let you experiment with
> such a configuration. But you said you want to make parts, not
> experiment
[EMAIL PROTECTED] wrote:
> On 12 Feb 2008 at 18:03, [EMAIL PROTECTED] wrote:
>
>> EMC can do PID just fine. It's steppers that can't. Steppers lose
>> torque as the speed increases. There is no way around this, it's just
>> the physics of the motor.
>
>
> Did someone rewrite the spec for
On Wed, 13 Feb 2008, Dave Engvall wrote:
EMC can do PID just fine. It's steppers that can't. Steppers lose
torque as the speed increases. There is no way around this, it's
just the physics of the motor.
>>
PID loop will attempt to correct for a lagging motor by requesting
Gentlemen,
Sorry for this in advance. I couldn't resist.
Stephan Wille Padnos: you are too kind
Steve Thornton: I rest my case
thanks
Stuart
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On Feb 13, 2008, at 7:40 AM, Stephen Wille Padnos wrote:
> [EMAIL PROTECTED] wrote:
>
>> On 12 Feb 2008 at 18:03, [EMAIL PROTECTED]
>> wrote:
>>
>>
>>> EMC can do PID just fine. It's steppers that can't. Steppers lose
>>> torque as the speed increases. There is no way around this, it's
>>>
[EMAIL PROTECTED] wrote:
>On 12 Feb 2008 at 18:03, [EMAIL PROTECTED] wrote:
>
>
>>EMC can do PID just fine. It's steppers that can't. Steppers lose
>>torque as the speed increases. There is no way around this, it's just
>>the physics of the motor.
>>
>>
>
>Did someone rewrite the spec
- Original Message -
From: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>;
Sent: Wednesday, February 13, 2008 5:41 AM
Subject: [Emc-users] UK suppliers of stepper motors and drive electronics
> On 12 Feb 2008 at 18:03, [EMAIL PROTECTED] wrote:
>
>> EMC can
At 08:30 AM 2/13/2008, you wrote:
>Am 13.02.2008 um 11:41 schrieb [EMAIL PROTECTED]:
>
> > On 12 Feb 2008 at 18:03, [EMAIL PROTECTED]
> > wrote:
> >
> >> EMC can do PID just fine. It's steppers that can't. Steppers lose
> >> torque as the speed increases. There is no way around this, it's
> >>
Am 13.02.2008 um 11:41 schrieb [EMAIL PROTECTED]:
> On 12 Feb 2008 at 18:03, [EMAIL PROTECTED]
> wrote:
>
>> EMC can do PID just fine. It's steppers that can't. Steppers lose
>> torque as the speed increases. There is no way around this, it's
>> just
>> the physics of the motor.
>
>
> Did
On 12 Feb 2008 at 18:03, [EMAIL PROTECTED] wrote:
> EMC can do PID just fine. It's steppers that can't. Steppers lose
> torque as the speed increases. There is no way around this, it's just
> the physics of the motor.
Did someone rewrite the spec for PID?
used to be a way of correcting a
Stephen Wille Padnos wrote:
> EMC can do PID just fine. It's steppers that can't.
Steve makes many good points, which have been gone over ad
infinitum here over the past N years.
The only comment I want to throw out is that some users actually
ARE using encoders with stepper motors. It won't
On Tue, 2008-02-12 at 22:42 +, [EMAIL PROTECTED] wrote:
> > With the experience I have gained so far, it leads me to believe that
> > you are making choices that may make your quest more difficult. If you
> > are trying to have a CNC machine to make parts and spend as little as
> > appropriate
[EMAIL PROTECTED] wrote:
>>With the experience I have gained so far, it leads me to believe that
>>you are making choices that may make your quest more difficult. If you
>>are trying to have a CNC machine to make parts and spend as little as
>>appropriate for that end, then you should consider stu
> With the experience I have gained so far, it leads me to believe that
> you are making choices that may make your quest more difficult. If you
> are trying to have a CNC machine to make parts and spend as little as
> appropriate for that end, then you should consider studying other
> machines th
On Tue, 2008-02-12 at 13:39 +, [EMAIL PROTECTED] wrote:
> Just a quickie.
>
> Can anyone recommend a UK supplier of stepper motors and associated drive
> electronics?
> eg just add mill, and computer running EMC.
>
> Mill is a light / middleweight Pinnacle universal job, XYZ travels are 400,
[EMAIL PROTECTED] wrote:
>> http://www.arceurotrade.co.uk/Catalogue/Stepper-Motors
>> The 180Ncm will be big enough, and at ?18.50 at the moment ...
>> The 3 Amp driver at ?28.95 each are a good option for driving them, so for
>> under ?150 you have all the grunt.
>> They will run direct off the p
> http://www.arceurotrade.co.uk/Catalogue/Stepper-Motors
> The 180Ncm will be big enough, and at ?18.50 at the moment ...
> The 3 Amp driver at ?28.95 each are a good option for driving them, so for
> under ?150 you have all the grunt.
> They will run direct off the parallel port, but a simple br
> http://www.arceurotrade.co.uk/Catalogue/Stepper-Motors
> The 180Ncm will be big enough, and at ?18.50 at the moment ...
> The 3 Amp driver at ?28.95 each are a good option for driving them, so for
> under ?150 you have all the grunt.
> They will run direct off the parallel port, but a simple br
[EMAIL PROTECTED] wrote:
> Just a quickie.
>
> Can anyone recommend a UK supplier of stepper motors and associated drive
> electronics?
> eg just add mill, and computer running EMC.
>
> Mill is a light / middleweight Pinnacle universal job, XYZ travels are 400,
> 180, 150 mm with
> quill head
I got mine from at the model engineer ex
http://www.arceurotrade.co.uk/Catalogue/Stepper-Motors in Leicester
and seems they have some even cheaper since I bought mine
Dave Caroline
archivist on #emc FreeNode
-
This SF.net em
Just a quickie.
Can anyone recommend a UK supplier of stepper motors and associated drive
electronics?
eg just add mill, and computer running EMC.
Mill is a light / middleweight Pinnacle universal job, XYZ travels are 400,
180, 150 mm with
quill head having separate raise / lower facility and
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