CAD CAM EDM DRO - Yahoo Group Archive

Re: [CAD_CAM_EDM_DRO] Re: Going home / more stepper speed!

on 2001-03-22 18:58:28 UTC
Mariss,

Thanks, then I'll try the small pittman for the tach. I still want to
build your Dynamometer.

Alan KM6VV

mariss92705@... wrote:
>
> Alan,
>
> Hi. A Pittman will do. Actually you don't want it to add load; you
> are trying to measure the behavior of the test motor, not anything
> else. The Kv is definately linear but measure it at a fairly high
> speed. If you drive the DC motor with a variable current source after
> having carefully calculated its Kt, you have the beginings of a
> dynamometer.
>
> Mariss
>
> --- In CAD_CAM_EDM_DRO@y..., Alan Marconett KM6VV <KM6VV@a...> wrote:
> > Nice idea Mariss,
> >
> > Like a pitmann (pittman ?) motor? It would also provide some
> load. Is
> > Kv linear? So I could empirically determine the voltage at some
> known
> > stepping rate (function/rate generator), and "calibrate" my motor?
> And
> > add your dynamic brake circuitry? I like that!
> >
> > Alan KM6VV
> >
> >
> > mariss92705@y... wrote:
> > >
> > > You can also couple a small DC brush motor to the step motor
> shaft,
> > > place the scope probes across the DC motor, set coupling to AC and
> > > watch the dynamic behavior of the step motor directly. If you know
> > > the DC motor's Kv, then you can make quantifiable measurements as
> > > well.
> > >
> > > Mariss

Discussion Thread

Alan Marconett KM6VV 2001-03-21 11:09:24 UTC Re: Going home / more stepper speed! ballendo@y... 2001-03-22 08:18:17 UTC Re: Going home / more stepper speed! Alan Marconett KM6VV 2001-03-22 11:52:56 UTC Re: [CAD_CAM_EDM_DRO] Re: Going home / more stepper speed! Jon Elson 2001-03-22 12:20:48 UTC Re: [CAD_CAM_EDM_DRO] Re: Going home / more stepper speed! mariss92705@y... 2001-03-22 13:17:49 UTC Re: Going home / more stepper speed! Alan Marconett KM6VV 2001-03-22 14:48:33 UTC Re: Going home / more stepper speed! Alan Marconett KM6VV 2001-03-22 15:41:45 UTC Re: Going home / more stepper speed! Jon Elson 2001-03-22 16:00:30 UTC Re: [CAD_CAM_EDM_DRO] Re: Going home / more stepper speed! Jon Elson 2001-03-22 16:07:10 UTC Re: [CAD_CAM_EDM_DRO] Re: Going home / more stepper speed! ballendo@y... 2001-03-22 16:24:59 UTC Re: Going home / more stepper speed! Alan Marconett KM6VV 2001-03-22 18:12:37 UTC Re: Going home / more stepper speed! mariss92705@y... 2001-03-22 18:16:15 UTC Re: Going home / more stepper speed! Alan Marconett KM6VV 2001-03-22 18:16:16 UTC Re: Going home / more stepper speed! Alan Marconett KM6VV 2001-03-22 18:58:28 UTC Re: [CAD_CAM_EDM_DRO] Re: Going home / more stepper speed! ballendo@y... 2001-03-22 19:52:53 UTC Re: Going home / more stepper speed! Jon Elson 2001-03-22 21:40:16 UTC Re: [CAD_CAM_EDM_DRO] Re: Going home / more stepper speed! Alan Marconett KM6VV 2001-03-23 17:48:22 UTC Re: Going home / more stepper speed! mariss92705@y... 2001-03-23 18:14:24 UTC Re: Going home / more stepper speed! Jon Elson 2001-03-23 21:03:51 UTC Re: [CAD_CAM_EDM_DRO] Re: Going home / more stepper speed! Jon Elson 2001-03-23 21:19:07 UTC Re: [CAD_CAM_EDM_DRO] Re: Going home / more stepper speed! mariss92705@y... 2001-03-23 23:33:18 UTC Re: Going home / more stepper speed! Alan Marconett KM6VV 2001-03-24 10:32:55 UTC Re: Going home / more stepper speed! Jon Anderson 2001-03-24 11:16:46 UTC Re: [CAD_CAM_EDM_DRO] Re: Going home / more stepper speed! Alan Marconett KM6VV 2001-03-24 11:23:30 UTC Re: Going home / more stepper speed! Alan Marconett KM6VV 2001-03-24 13:25:52 UTC Re: Going home / more stepper speed! William Scalione 2001-03-24 15:06:07 UTC Re: [CAD_CAM_EDM_DRO] Re: Going home / more stepper speed! Jon Anderson 2001-03-24 15:19:01 UTC Re: [CAD_CAM_EDM_DRO] Re: Going home / more stepper speed! mariss92705@y... 2001-03-24 15:51:46 UTC Re: Going home / more stepper speed! Ian Wright 2001-03-24 16:28:16 UTC Re: [CAD_CAM_EDM_DRO] Re: Going home / more stepper speed! Tim Goldstein 2001-03-24 16:45:13 UTC RE: [CAD_CAM_EDM_DRO] O'scope was:Re: Going home / more stepper speed! Jon Elson 2001-03-24 20:31:21 UTC Re: [CAD_CAM_EDM_DRO] Re: Going home / more stepper speed! Jon Elson 2001-03-24 20:36:45 UTC Re: [CAD_CAM_EDM_DRO] Re: Going home / more stepper speed! Jon Anderson 2001-03-24 20:53:56 UTC Re: [CAD_CAM_EDM_DRO] Re: Going home / more stepper speed! Jon Elson 2001-03-24 21:00:50 UTC Re: [CAD_CAM_EDM_DRO] Re: Going home / more stepper speed! Alan Marconett KM6VV 2001-03-25 14:03:13 UTC Re: Going home / more stepper speed! Alan Marconett KM6VV 2001-03-25 15:04:10 UTC Re: Going home / more stepper speed! Alan Marconett KM6VV 2001-03-25 15:08:49 UTC Re: Going home / more stepper speed! Jon Anderson 2001-03-25 16:23:44 UTC Re: [CAD_CAM_EDM_DRO] Re: Going home / more stepper speed! Alan Marconett KM6VV 2001-03-25 17:12:24 UTC Re: Going home / more stepper speed! Alan Marconett KM6VV 2001-03-25 17:33:12 UTC Re: Going home / more stepper speed!